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Enhancement of temperature stability for magnesium niobite system by direct doping with titanium dioxide Ceram. Int. (IF 5.2) Pub Date : 2024-03-26 Zipeng Huang, Jianli Qiao, Lingxia Li
Heterovalent ion doping has been playing a remarkably significant role in the microwave dielectric performances of columbite ANbO (A = Zn, Ca, or transition metal). Here, the value of MgNbO ceramics can be effectively enhanced from 32,893 GHz to 117,659 GHz by doping with 1 mol% (TiW). Based on the high Q value of Mg(NbTiW)O, TiO was selected to further adjust the value of the matrix material prepared
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Enhanced energy storage performance of (Bi0·4Ba0·2K0·2Na0.2)TiO3–NaNbO3 high-entropy ceramics under moderate electric fields Ceram. Int. (IF 5.2) Pub Date : 2024-03-26 Zhaobo Liu, Tianyu Liu, Bofeng Zheng, Wenhui Ye, Jinxu Ma, Kepi Chen
High-entropy perovskite oxides (HEPOs) have attracted considerable attention as dielectric ceramics. However, the energy-storage performance of these HEPOs still requires improvement. In this study, a series of (1-)(BiBaKNa)TiO-NaNbO high-entropy ceramics were designed and prepared using a high-entropy strategy. The introduction of antiferroelectric NaNbO into the (BiBaKNa)TiO medium-entropy matrix
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High-temperature synthesis of cast vanadium nitrides and aluminum oxynitrides Ceram. Int. (IF 5.2) Pub Date : 2024-03-26 V.A. Gorshkov, P.A. Miloserdov, O.D. Boyarchenko, I.D. Kovalev, O.A. Golosova
This paper presents experimental results concerning the one-step preparation of cast divanadium nitride and aluminum oxynitride (AlON) by high-temperature synthesis under 5 MPa of N from green mixtures containing vanadium oxide, aluminum, and aluminum nitride. It was shown that the mixtures with a wide range of component ratios are capable to burn with the temperature exceeding the melting point of
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High-temperature oxidation resistance behavior and mechanism of HfSiO4-modified C/SiC composites Ceram. Int. (IF 5.2) Pub Date : 2024-03-26 Jintao Qiu, Huiyong Yang, Juntong Huang, Lianyi Wang, Ruiying Luo, Zhi Chen, Wei Li, Chengmou Deng, Wenpeng Li, Jinxuan Zhang, Zejian Tao, Shujun Zhong, Wenhao Teng
To enhance the oxidation resistance of C/SiC composites, HfSiO was introduced into C/SiC composites to modify the matrix utilizing two cyclic alternating preparation modes, thereby yielding the C/SiC-HfSiO composites with a composite matrix. Using X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), energy-dispersive spectrometer (EDS), and thermogravimetric-differential thermal
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Synthesis of rGO-reinforced MgAl2O4 spinel composites by solid-state powder route mechanism: A comparative analysis between non-reinforced and rGO-reinforced spinel composites Ceram. Int. (IF 5.2) Pub Date : 2024-03-26 Siddharth Parida, Binod Bihari Palei, P.K. Srivastava
Reduced Graphene Oxide (rGO)-reinforced MgAlO spinel composite was successfully synthesized by a solid-state powder route mechanism via high-energy planetary ball milling of corresponding metal oxide precursors followed by a high-temperature single-stage sintering process. The effect of rGO on the homogeneity, phase development, morphology, chemical composition, rate of formation of spinel, and cation
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3D porous ZnO microspheres sensitized by Ag quantum dots for highly responsive TEA sensors Ceram. Int. (IF 5.2) Pub Date : 2024-03-26 Zhenyu Yuan, XiHao Gao, MeiGe Ding, YanNan Wang, Fanli Meng
The study aims to create a highly responsive gas sensor for TEA. In order to achieve this goal, spherical ZnO with layered structure was synthesized by a simple hydrothermal method. Subsequently, Ag quantum dots (QDs) are precipitated onto the surface of the ZnO microspheres. The ZnO microspheres were analyzed to demonstrate that they are comprised of porous nanosheets measuring roughly 10 μm in diameter
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Diamond-like carbon (DLC) coating on graphite: Investigating the achievement of maximum wear properties using the PECVD method Ceram. Int. (IF 5.2) Pub Date : 2024-03-26 Mohsen Samiee, Zahra-Sadat Seyedraoufi, Mehrdad Abbasi, Mohammad Javad Eshraghi, Vahid Abouei
Considering the potential for morphological changes and the adjustment of the sp/sp ratio in diamond-like carbon (DLC) coatings, and consequently the possibility of adjusting the properties of self-lubricating, hardness, and wear of these coatings, the present study investigates the effect of varying the power applied during the deposition of coatings using plasma-enhanced chemical vapor deposition
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Enhancement of capacitance of waterproof supercapacitors by controlling the thickness of their composite electrodes (graphene/ La0.2Gd1.8Zr2O7: La0.7Sr0.3MnO3) Ceram. Int. (IF 5.2) Pub Date : 2024-03-25 R. Mendoza-Jiménez, J. Oliva, K.P. Padmasree, A.I. Mtz-Enriquez, C.R. Garcia
We report the electrochemical performance of wrinkled/washable graphene-based supercapacitors (SCs). Sustainable graphene electrodes were fabricated by printing graphene microplates on recycled plastics (taken from wasted chip-packets), which provided flexibility to the SCs. The devices made with only graphene electrodes had an energy-density/specific-capacitance of 8.8 Wh kg/99.1 F g. To enhance the
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Converting sintering red mud to valuable calcium carbonate whiskers via an innovative magnesium-modified wet carbonation Ceram. Int. (IF 5.2) Pub Date : 2024-03-25 Yibo Sun, Yuanyuan Shen, Yuli Wang, Haibo Zhang, Xuemao Guan, Jianping Zhu, Songhui Liu
Sintering red mud (SRM) is an industrial alkaline waste residue generated from the sintering process in alumina production, which is often directly discarded and causes environmental issues. In this study, an innovative magnesium-modified wet carbonation method was proposed to convert sintering red mud to valuable calcium carbonate whiskers using CO-containing flue gas. The effects of carbonation conditions
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Enhancing the capabilities of Mg–4Zn-1RE-0.7Zr alloy through synergistic integration of ceramic (ZrO2) & solid lubricant (BN/MoS2) reinforcements: A Taguchi-GRA optimization approach Ceram. Int. (IF 5.2) Pub Date : 2024-03-25 Sathishkumar S.R, Durairasan M
In this present investigation, novel hybrid magnesium composites were synthesized by the inclusion of self-lubricating (BN/MoS) and ceramic (ZrO) particulates with the help of the powder metallurgy technique. ZE41 magnesium (Mg–4Zn-1RE-0.7Zr) was applied for a broad range of components, including the gearbox casing, the framework of the door, and transmission in aircraft like the Sikorsky UH-60 and
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Enhancing growth speed of 3C–SiC using solution growth method by a new low temperature Mn-based cosolvent Ceram. Int. (IF 5.2) Pub Date : 2024-03-24 Wenlong Fu, Guoyu Qian, Zhi Wang, Jin Shi, Bingyin Shi, Yiwei Sun
Solution growth is a promising method for rapidly and stably preparing high-quality silicon carbide (SiC) single crystals. However, the coexistence of polycrystalline parasitism and solid inclusions during the growth of SiC in high-temperature solutions above 1800 °C still poses a serious threat to the quality of single crystals. Herein, we introduce an innovative Mn-based cosolvent for controlling
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Heavy-ion irradiation effects of high-entropy A2Ti2O7 pyrochlore with multi-elements at a site Ceram. Int. (IF 5.2) Pub Date : 2024-03-24 Haiyan Guo, Kuibao Zhang, Yuxiang Li
In this work, the irradiation response of ATiO (A represents rare earth elements of Gd, Dy, Ho, Er, Yb and Nd) series ceramics were systematically studied under 3 MeV Au ions. The structural changes pre- and post-irradiation were characterized using X-ray diffraction (XRD), grazing incidence X-ray diffraction (GIXRD) and Raman spectroscopy. After heavy ion irradiation, all the samples undergo structural
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Advantageous occupation of Cu2+ in the B site of double-perovskite Rb2BB'Br6 (B = K; B′ = Bi) framework for white-light-emission Ceram. Int. (IF 5.2) Pub Date : 2024-03-24 Kumarasamy Alwar, Muralidharan Rajaram, Leelavathi Harikrishnan, Abirami Natarajan, Arulmozhi Rajaram
Research on lead-free double perovskite has demonstrated its potential as a solution to the stability and toxicity issues associated with lead-based inorganic perovskite white light-emitting diodes (WLED). This current investigation was designed to fabricate, examine, and compare the photoluminescence (PL) characteristics of Cu-activated RbBB'Br (B = K and B′ = Bi) double-perovskite (DP) [ABB'Br] luminous
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Temperature and frequency dependent conductive behavior study on polymer-derived SiBCN ceramics Ceram. Int. (IF 5.2) Pub Date : 2024-03-24 Qiang Yan, Siyao Chen, Haofan Shi, Jinping Li, Songhe Meng
Conductive behavior research is vital for in-depth understanding the conductive capabilities of materials as well as promoting the development of their applications in fields such as electronics, energy and sensing. In the article, the AC conductive behavior was systematically evaluated for polymer-derived SiBCN ceramics by complex impedance spectroscopy and electrical modulus methods. The results
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Efficient and abnormal thermal quenching Sm3+ activated perovskites-type niobate phosphor for plant growth lamp and WLEDs Ceram. Int. (IF 5.2) Pub Date : 2024-03-23 Zaifa Yang, Mingjing Ye, Shuyu Yang, Ruoxuan Wang, Changhui Sun, Yifei Li, Jianhao Wang
Thermal quenching has been one of the biggest challenges in manufacturing high-quality phosphor-converted light-emitting diodes (pc-LEDs). In this work, the excellent thermally stable LaMgNbO:Sm (LMN:Sm) red phosphor was successfully synthesized and the physicochemical properties of LMN:Sm were studied in terms of structural, elemental, morphological, electronic and optical characteristics. The Rietveld
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The adhesion strength and stability of TiN films deposited on magnesium substrate with different substrate roughness Ceram. Int. (IF 5.2) Pub Date : 2024-03-23 H.Y. Liu, Y.L. Gong, D.L. Ma, P.P. Jing, L.N. You, L.J. Wei, Y.X. Leng
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Dynamic optical information encoding strategy of flexible thin films based on Ba2SiO4 phosphor for ultra-long storage time Ceram. Int. (IF 5.2) Pub Date : 2024-03-22 Yaqi Song, Yanjie Zhang, Yuxin Wang, Meng Wu, Shiwei Yang, Jiawei Song, Herui Zhao, Jingjie Yu
Nowadays, state-of-the-art for optical data storage (ODS) have emerged as a leader in the competition of data storage technologies. However, the development of optical storage technology based on optically stimulated luminescence (OSL) encounter the serious problems, of single storage mode and easily decoding. In this study, a series of BaSiO (denoted as BS): Eu, Ln (Ln = Dy, Ho) phosphors with adjustable
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Heat transfer mechanism and performance optimization scheme of refractory oxide solid heat storage materials Ceram. Int. (IF 5.2) Pub Date : 2024-03-22 Bianlei Hao, Guangchao Sun, Jiayu Zhang, Xiang Li, Fatang Xu, Kaiqi Liu
Clean energy advances can drive solid heat storage technology. Because of their high-temperature, corrosion, and excellent thermal shock resistance properties, refractory oxides are widely used as solid heat storage materials. However, their applications are limited owing to their poor heat-transfer performance resulting from their multicomponent, multiphase, and complex nature and thus understanding
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In-situ preparation of alumina-based cermet after reduction of iron oxide in red mud with aluminum dross Ceram. Int. (IF 5.2) Pub Date : 2024-03-22 Hanlin Shen, Bingjie Lou, Bo Liu, Junjie Zhang, Xiaoyan Zhang, Jun Liu, Rui Zhang, Mingcui Chen, Shengen Zhang
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Analysis method of non-periodic CMC structure based on super-element Ceram. Int. (IF 5.2) Pub Date : 2024-03-22 Sheng Zhang, Chengqian Dong, Huajun Zhang, Yue Zhou, Qiang Chen, Xiguang Gao, Yingdong Song, Fang Wang
Structural analysis is a challenge for the application of ceramic matrix composite at present. On one hand, the macro-homogenization method cannot consider mesoscopic non-periodicity, therefore it is difficult to ensure accuracy. On the other hand, directly performing finite element calculations on the mesoscopic model is unacceptable since the model is too large to be solved. The super-element method
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Molten salt-modified Ti3C2Tx MXene with tunable oxygen-functionalized surfaces for effective detection of NO2 at room temperature Ceram. Int. (IF 5.2) Pub Date : 2024-03-22 Lu Tang, Huimin Yang, Huajing Wang, Yazhou Yang, Xiaoxia Wang, Gen Tang, Dawen Zeng
The abundant tunable functional groups and room-temperature sensing properties of MXenes have garnered increasing interest in the field of gas sensing. However, the majority of research has exclusively focused on the combined impact of external substances with MXenes functional groups, with limited exploration into the modulation of MXenes’ intrinsic functional groups. In this work, we successfully
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Low-energy consumption LiCl–LiBr–KBr–CsBr electrolyte for high-energy thermal battery application Ceram. Int. (IF 5.2) Pub Date : 2024-03-21 Yusha Deng, Licheng Tang, Jiajun Zhu, Wulin Yang, Jingliang Wang, Zaifang Yuan, Lingping Zhou, Licai Fu
The activation of thermal batteries requires plentiful heat to melt the ambient solid electrolyte into an ionic conductor with high ionic conductivity for large current discharge. The process necessitates massive heating powder to provide heat, severely reducing the effective specific energy of the thermal battery. To decrease energy consumption, we developed the LiCl–LiBr–KBr–CsBr molten salt with
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Effects of (KMg)3+ co-doping and sintering temperature on the negative thermal expansion property of Sc2W3O12 ceramics Ceram. Int. (IF 5.2) Pub Date : 2024-03-21 Hongfei Liu, Xiaoxue Fan, Wei Wang, Xianghua Zeng, Zhiping Zhang
(KMg) co-doped ScWO ceramics have been prepared via co-precipitation method. Effects of (KMg) co-doping amount and sintering temperature on the phase constitution, microstructure, morphology, and negative thermal expansion (NTE) performance of KMgScWO (0 ≤ ≤ 1.25) ceramics were studied. Results indicate that: Sc cations can be substituted by (KMg) dual-cations and a composition-induced structural phase
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Effects of CCVD parameters on the growth of VACNT over AZO substrate Ceram. Int. (IF 5.2) Pub Date : 2024-03-21 Lilla Nánai, Máté Czagány, Klara Hernadi
Both, aluminum doped zinc oxide (AZO) and vertically aligned carbon nanotubes (VACNT) have outstanding properties and promising applications in the future, however, there is little information in the scientific literature on whether this is feasible. In this study, we investigated the effects of catalyst layer deposition parameters and the synthesis parameters by using a simple and cost-effective dip
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High thermal conductivity and high energy density compatible latent heat thermal energy storage enabled by porous Al2O3@Graphite ceramics composites Ceram. Int. (IF 5.2) Pub Date : 2024-03-21 Yuhui Chen, Jiaxiang Sun, Zonghua Chai, Baiqiang Zhang, Yang Cao, Yonghai Zhang
Phase change material (PCM) is an ideal heat storage material with huge latent heat and nearly constant phase change temperature, but there are serious problems in application such as leakage and low thermal conductivity. Porous ceramic is widely used in PCM packaging because of its advantages of controllable porosity and high thermal conductivity. Porous AlO ceramics were prepared by foaming injection
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Oxidation behavior and thermal-shock resistance of AO20/Si3N4 coating for carbon/carbon composites Ceram. Int. (IF 5.2) Pub Date : 2024-03-20 Wenhao Du, Fanhao Zeng, Yu Dai, Yafang Gao, Meiyan Chen, Zhi Li
A new SiN coating was proposed and prepared as bonding layer for improving the high temperature thermal shock resistance of the mass loss of the AO20/SiN coating was 0.60% after oxidation at 1723 K for 69 h in air, and 2.86% after oxidation at 1673 K for 134 h. In particular, the coating sample has excellent thermal shock resistance, where the mass loss of the sample is only 0.03% after 33 times of
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Sb dopant-induced modifications in CuO–ZnO nanocomposites: Optical, electrical and magneto-dielectric insights for optoelectronic applications Ceram. Int. (IF 5.2) Pub Date : 2024-03-20 Arushi Pandey, Preeti Yadav, Abu Fahad, Pushpendra Kumar, Manoj K. Singh
This study involves the synthesis of CuO–ZnO nanocomposites with varying Sb doping levels (0%, 2.5%, and 5%) through a facile sol-gel process. Structural analysis via X-ray diffraction confirmed the presence of ZnO's hexagonal wurtzite phase and CuO's monoclinic phase in all samples, indicating reduced crystallinity due to doping. The average crystallite size was determined using Scherrer's formula
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Controllable preparation and slag corrosion resistance of novel MgO–MgAl2O4–ZrO2 refractory Ceram. Int. (IF 5.2) Pub Date : 2024-03-20 Chunzheng Wei, Chenhong Ma, Yong Li, Wenxian Bai, Jiuling Yang, Yuan Cheng, Lijuan Gao
Brine magnesia and fused AlO–ZrO powder were used as raw material to prepare MgO–AlO–ZrO (MAZ) refractory brick which was sintered at 1690 °C for 8 h in a tunnel kiln. Its resistance to slag corrosion of non-ferrous metallurgy was investigated. The phase and microstructure of the samples before and after corrosion were characterized by XRD, SEM and EDS. The results show that MAZ ternary metastable
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Greatly improved energy storage density of SrO2–BaO2–Nb2O5–SiO2–Al2O3–B2O3 glass ceramics by various amount CeO2 doping Ceram. Int. (IF 5.2) Pub Date : 2024-03-20 Shaohui Liu, Zhongyuan Xin, Jiao Wang, Haoshan Hao, Qing Wang
Glass ceramic dielectric materials with high power density and high energy density have important application value in the miniaturization and integration of lightweight pulse power devices. In this work, SrO–BaO–NbO–SiO–AlO–BO glass ceramics doped with various contents of CeO were prepared via high-temperature melting combined with temperature-controlled crystallization process. Results showed that
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Influence of annealing temperature on microstructure, magnetic and electrical properties of Ce doped cobalt ferrite nanoparticles Ceram. Int. (IF 5.2) Pub Date : 2024-03-20 M.H. Badr, N.A. Fadl, A.A. EL-Hamalawy, A.S. Abouhaswa
Cerium doped cobalt ferrite nanoparticles with chemical formula CoFeCeO were synthesized at different annealing temperatures (600, 700, 800, 900 and 1000C°) via sol-gel auto-combustion method. Thermal analysis for sample annealed at 1000C° was examined through differential scanning calorimetry (DSC) and revealed the presence of exothermic peak at around 500C° attributed to crystallization of prepared
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Synergistic effect of abrasive friction and glycine on improving chemical mechanical polishing performance of single-crystal GaN substrate Ceram. Int. (IF 5.2) Pub Date : 2024-03-20 Congming Ke, Shoulin Liu, Yiao Pang, Yongping Wei, Yaping Wu, Qiufa Luo, Yueqin Wu, Jing Lu
With the rapid development of the third-generation semiconductor materials, the chemical mechanical polishing rate and surface quality of single-crystal gallium nitride (GaN) substrates have been a research hot-spot. In this work, the synergistic effect of abrasive friction and glycine (Gly) on improving the chemical mechanical polishing (CMP) performance of single-crystal GaN substrate is proposed
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Kapok-derived carbon/fly ash ceramic metacomposites with tunable negative permittivity behavior Ceram. Int. (IF 5.2) Pub Date : 2024-03-20 Jingxu Zhou, Chuanbing Cheng, Xinle Wang, Yuanhui Liu, Rongwei Ma, Jia Wang, Heng Cui, Zhiyuan Hu, Chenxu Li, Yibo Li, Yujun Zhao, Runhua Fan
In this paper, kapok-derived carbon/fly ash (KDC/FA) ceramic metacomposites were fabricated by vacuum hot-press sintering with FA and kapok fiber as raw materials, and their conductivity, dielectric properties, and impedance response were researched. The composition and microstructure of the metacomposites had a significantly impact on the electrical characteristics. With the increase of KDC content
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Tunable luminescent properties and structure of Sn2+-doped boroaluminate glasses Ceram. Int. (IF 5.2) Pub Date : 2024-03-20 Xiaoman Li, Pengfei Zhai, Xinyu Liu, Guangqiang Liu, Rongfei Wei, Hai Guo
A series of novel Sn doped boroaluminate glasses were prepared by the traditional melt quenching method in this work. Their glass network structure, luminescent properties, and mechanisms were studied in detail. The main framework of the glass network was dependent on the glass network former (BO) and intermediate (AlO), and was characterized by the B and Al NMR spectra. Broadband tunable blue-violet
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Effects of electrostatic polarities on the morphology of electrospun oxide nanofibers: A case study on alumina-based nanofibers Ceram. Int. (IF 5.2) Pub Date : 2024-03-20 Tianwei Zhu, Xiaolei Song, Zhenxin Duan, Ying Song, Xingwei Hu, Yang Zhou, Ying Han, Xu Ran
Oxide nanofibers are widely used in several applications, including thermal insulation, fuel cells, flexible sensors, and catalyst support. Fiber morphology significantly affects their application performance. In this work, alumina-based nanofibers were successfully prepared using a sol-gel combined with an electrospinning method. The electrostatic polarity effects on fiber morphology were investigated
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Synthesis, XPS and NEXAFS spectroscopy study of Zn, Cr codoped bismuth tantalate pyrochlores Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 N.A. Zhuk, B.А. Makeev, A.V. Koroleva, O.V. Petrova, S.V. Nekipelov
The study investigated the formation of inhomophase ceramics through doping in BiСrTaO. It was found that all BiZnCrTaO (0.3 ≤ x ≤ 0.7) investigated samples crystallized in the pyrochlore structural type (sp. Gr. ) and contained an admixture of triclinic β-BiTaO (up to 24 wt %, sp. gr. ), with the admixture concentration proportional to the degree of zinc doping. It was shown that impurities in the
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Enhancing anti-reflective properties of electronic glass through two-step chemical etching Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Jiachang Zhang, Jian Yuan, Yuanhang Lv, Peijing Tian, Zhuangzhuang Han, Jingyi Mao, Qi Zhang
With the rapid growth of the electronic display industry, aluminosilicate glass has emerged as a replacement for traditional soda lime silica glass as the cover plate of various display devices because of its excellent physical and chemical properties. High transmittance and low reflectivity are the inevitable requirements of its application. However, few studies have been reported about the antireflection
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Microwave absorbing performance of reduced graphene oxide @ alumina fabricated by atomic layer deposition method Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Qianshan Xia, Zhiyuan Huang, Xuetao Wang, Lingzhi Chen, Xinda Wang, Chengqi Li, Xinzuo Huang, Qingguo Chen, Minghua Chen
In this work, a series of alumina coating reduced graphene oxide (RGO@AlO) composites with core-shell structure was synthesized by the atomic layer deposition (ALD) method. The alumina (AlO) thickness of the RGO@AlO could be controlled by changing the number of ALD cycles. The microstructure, high-temperature resistance, and microwave absorbing properties of the composites were investigated in detail
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Effect of (Fe0.8Cr0.2)2O3 pigment on the optical properties of ZnO–B2O3–SiO2 glass-based coatings for double-glass photovoltaic modules Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Wangming Shi, Minglu Shao, Yunpeng Li, Huimin Han, Letong Song, Hong Li, Lida Luo, Qingwei Wang
Solving technical issues of light pollution, thermal protection, color aesthetics, and weathering resistance for the coating layer used in double-glass photovoltaic modules of a solar panel, new coating materials were produced using ZnO–BO–SiO glass frit and (FeCr)O pigment. In this work, the crystal structure, the microstructure, the distribution of Fe and Cr elements, the diffusion of element Fe
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Broadband NIR emission from Te doped silicate glass as gc-LED light source for biological detection Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Chenfeng Lian, Xin Ye, Shiliang Kang, Chengwei Gao, Tiefeng Xu, Shixun Dai, Changgui Lin, Linling Tan
Near-infrared (NIR) glass-converted light-emitting diodes (gc-LEDs) are newly emergent broadband light sources for miniaturizing optical systems like spectrometers. While lots of effort has been spent on materials doped with rare-earth and transition-metal ions, the achievement of these materials with broadband NIR emission and desired wavelength region remains a long-standing challenge, especially
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Structural and electrodynamic characteristics of the spinel-based composite system Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 A.V. Trukhanov, D.I. Tishkevich, A.V. Timofeev, V.A. Astakhov, E.L. Trukhanova, A.A. Rotkovich, Yuan Yao, D.S. Klygach, T.I. Zubar, M.I. Sayyed, S.V. Trukhanov, V.G. Kostishin
Two- and tree-component spinel-polymer composites were produced by thermal pressing. The initial components were chosen as CoFeO and NiCuZnFeO spinels that were produced using the sol-gel method. The ratio between spinel phases varied from 1:3 to 3:1. As a polymer, fluorinated ethylene propylene was used. The concentration of the spinels in the polymer matrix was fixed at 20 mass.%. Using XRD, SEM
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Blue emission and color-tunable behavior in Tm3+ singly- and Dy3+/Tm3+ co-doped CaLaGa3O7 phosphors Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Yunyun Liu, Chuanxin Huang, Jiaying Wang, Yaru Wang, Yan Wang
Tm singly- and Dy/Tm co-doped CaLaGaO phosphors were prepared successfully by a high-temperature solid-state reaction method and their structure, spectroscopic properties, as well as energy transfer processes between Dy and Tm were studied. The XRD measurements show that all the prepared phosphors have a tetragonal structure. The emission proved that under excitation by 355 nm, 455 nm blue light was
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Novel bio-inspired micro-tubular protonic ceramic fuel cells with unique four-channel hollow structure Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Tao Hong, Chengyu Li, Xiang Pan, Yingwei Lu, Tong Liu, Guangru Zhang, Jigui Cheng
Herein, we report a micro-tubular protonic ceramic fuel cell with novel bio-inspired four-channel structure, which has a considerable maximum output power density of 231 mW cm and good long-term stability.
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Innovative hydroxyapatite/submicron mesoporous SiO2/HA particles composite coatings for enhanced osteogenic activity of NiTi bone implants: A comprehensive investigation of materials and biological interactions Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Seyed Omid Reza Sheykholeslami, Jafar Khalil-Allafi, Mohamadreza Etminanfar, Hamed Hamishehkar, Nesa Abdian, Alireza Mehrvarz
In this study, hydroxyapatite (HA) incorporated in mesoporous SiO particles (SiO/HA) was initially synthesized using a soft template method. The resulting structure owned a high surface area (796.62 m g) and a substantial pore volume (0.757 cm g). The TEM and FESEM images indicated that the synthesized mesoporous particles possessed a spherical morphology, with a diameter of approximately 200 nm, and
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Rare-earth high-entropy magnetoplumbite structure hexaluminates (La1/5Nd1/5Sm1/5Eu1/5Gd1/5)MAl11O19 (M = Mg, Zn) for thermal barrier coating applications with enhanced mechanical and thermal properties Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Xuewei Luo, Shuo Huang, Ruiqi Huang, Jianhe Hong, Shuoguo Yuan, Zhu Shu, Ling Zhao, Cheng Lu, Hongyun Jin
By applying the high-entropy strategy, one can develop stable mixed oxide by populating a single sublattice with many distinct cations. Two kinds of rare-earth high-entropy hexaaluminates (LaNdSmEuGd)MAlO (M = Mg and Zn) were successfully synthesized, and their mechanical and thermal properties were analyzed. We highlight that the Zn-containing sample displays a significant increase in fracture toughness
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High-efficiency near-white emission of Bi3+/Sm3+ co-doped double-perovskite phosphors for optical thermometry Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Yongbin Hua, Jae Su Yu, Li Li
Near-white emission phosphors of the Bi/Sm co-doped double-perovskite CaYTaO were successfully prepared a simple solid-state reaction. The crystal structures and lattice parameters as functions of doping ion type and its content were analyzed. Note that all the prepared samples have the monoclinic structure with the space group of (14). Their lattice parameters were enlarged with the increment of doping
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Synthesis of lithium doped magnesium ferrites and their vibrational and magnetic properties: Correlation of experimental and density functional theory Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 K. Manjunatha, Angadi V. Jagadeesha, Sammed Shantinath Hardi, Hsin-Hao Chiu, Tsu-En Hsu, Sheng Yun Wu, Marisa C. Oliveira, Elson Longo, Renan A.P. Ribeiro, Mohd Ubaidullah, Abdullah A. Al-Kahtani, Kuldeep Sharma, Manish Gupta, Nagaraj Basavegowda, Shifa wang, T. Satish, S.O. Manjunatha, S.P. Kubrin
Recently, there has been an increased focus on investigating the possible use of ferrite nanoparticles as magnetic memory devices. In this study, we report on the Structural, microstructural, Raman, density functional theory and magnetic characteristics of MgLiFeO (x = 0, 0.15, 0.3, 0.45, 0.5 and 0.75). Samples were synthesized by solution combustion synthesis. Samples were subjected to characterize
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Wettability and joining of reaction-bonded silicon carbide (RBSC) by Ti–Si eutectic alloy Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Ziyan Zhao, Yan Liu, Bo Zhou, Hui Zhang, Xuejian Liu, Zhengren Huang
The high-strength joining of reaction-bonded silicon carbide (RBSC) is pivotal for its application in the semiconductor field. In this paper, the wetting and joining mechanism of Ti–Si eutectic alloy on RBSC were investigated. The contact angles observed between Ti–Si eutectic alloy and RBSC were approximately 1.9°, indicating the favorable wettability and demonstrating the feasibility of bonding RBSC
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High efficiency white emission in Na3Ba2Ca(PO4)3:Eu2+, Mn2+ phosphors for urban ecological lighting Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Di Wu, Jiayong Si, Tianliang Zhou, Guihua Li, Gemei Cai
The white-light-emitting devices (WLEDs) for urban ecological lighting remain the challenge. The current urban lighting system destroys the growth habits of plants and leads to inhibition of plant growth, reduced branching, smaller leaf area and reduced total dry weight due to excessive blue light. In this work, a series of blue-green and red dual-emission NaBaCa(PO):Eu, Mn phosphors have been successfully
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Crystal structure, cation distribution and electrical properties in NixAlyMn3−x−yO4 (0 Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Gang-Qin Shao, Quan-Jin Cen, Zhi-Hua Chen, Ji-Wei Zhang, Meng-Xiang Xie, Qiang Li, Xiu-Hua Cao, Wen-Hao Wang, Yan-Pei Wang, Hou-Ran Wu, Chun-Yuan Hu
NiAlMnO (0 < < 0.6; 0 < < 0.3) series NTC chip thermistors with homogeneous chemical compositions and high-pure spinel phases were fabricated a tape casting-lamination-sintering process. The multi-variate cation distribution model was established as (0 < < 0.5). The conduction mechanism was proposed based on a nearest neighbor hopping (NNH) model. They were verified coherently by cation-oxyanion chemical
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Synthesis, characterization and optical tuning of Sm3+ doped NaZnPO4 phosphors for white LED technology Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Mudasir Farooq, Mir Hashim Rasool, Haqnawaz Rafiq, Irfan Nazir, Seemin Rubab
This study presents a comprehensive investigation into the synthesis, structural-spectroscopic characterization, and optical properties analysis of Sm-activated NaZnPO phosphors with varied Sm-doping percentiles, aimed at developing tunable luminescent materials for white-light-emitting diode (WLED) applications. The polycrystalline samples NaZn Sm PO (x = 0.00, 0.05, 0.10 and 0.15) phosphors were
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Unraveling the effect of annealing on the structural and microstructural evolution of NiFe2O4@SiO2 core-shell type nanocomposites Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 A. Czempik, F. Grasset, S. Auguste, A. Rousseau, J. Kubacki, T. Sobol, M. Szczepanik, N. Randrianantoandro, A. Bajorek
The comparison between as-received and multistage annealed NiFeO@SiO (NFO@SiO) core-shell nanoparticles is presented. The studied ferrites were synthesized by co-precipitation followed by microemulsion. The presence of cubic inverse spinel ferrite structure with tetrahedral and octahedral iron occupancy is confirmed in all analyzed samples. The structural characterization revealed the gradual crystallization
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Phase transformation, lattice evolution and microwave dielectric properties of three Y–Al oxides ceramics Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Moke Zhou, Zhixian Jiang, Bin Tang
The present work begins with the investigation of a large number of studies that give the phase diagram of Y–Al–O ternary compounds. Furthermore, the phase compositions of the YO–AlO system at different temperatures are obtained by high-temperature in situ XRD detection. The constitutive relationships between the lattice properties, grain development, polarizability, internal strain and microwave dielectric
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Interaction mechanisms and high-temperature erosion-oxidation performance of Cr3C2-NiCrCoMo/nano-TiC coatings Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Jiyu Du, Xiaoxia Qi, Haiyang Lu, Yang Hua, Yanle Li, Fangyi Li
To improve the erosion resistance of typical CrC-NiCr coatings at high temperature, a novel CrC-NiCrCoMo/nano-TiC (NCT) coating was developed and deposited by the high-velocity oxygen fuel spray (HVOF), which involved a cooperative modification of the multi-alloy binding phase and ceramic phase. This study delves into the influence of nano-TiC on the coating’s resistance to erosion under varying impact
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One-time mass production of AlN nanosheets: Synergistic effect of high-energy shear and effective collision in a sanding mill Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Lin Han, Yuanlin Li, Yanan Zhao, Xiangzhao Meng, Xiaoping Lei, Xiao Yang, Ziyu An, Bin Peng, Ming Liu
Aluminum nitride (AlN) has attracted huge attention in new energy vehicle, communication equipment fields, due to the high-thermal conductivity and reliable insulating ability. One of the most crucial factors is the preparation of high-performance AlN powders, and more significantly, the two-dimensional nanostructure would change the phonon vibration mode and transport process, bringing in the novel
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Property of Cu and PbSrZrTiO3 multilayer actuator fabricated by cofiring with wet reduction Ceram. Int. (IF 5.2) Pub Date : 2024-03-19 Soon-Jong Jeong, Bo-Kun Koo, Dong-Hwan Lim, Min-Soo Kim, In-Sung Kim, Pil-Wan Han, Young-Rae Cho
Traditional co-firing processes involving noble metals are costly, thereby prompting a shift to base metals, such as Cu, to reduce manufacturing expenses. This study explored the use of Cu as an internal electrode for fabricating piezoelectric multilayer devices using a PbSr(ZrTi)O (PSZT) ceramic material. The compatibility of Cu with PSZT in ambient air and the subsequent wet-reduction was investigated
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Reversible characterization of power generation and steam electrolysis for protonic ceramic cells with bi-layer electrolyte of BaZr0.8Yb0.2O3-δ and BaZr0.1Ce0.7Y0.1Yb0.1O3-δ Ceram. Int. (IF 5.2) Pub Date : 2024-03-18 Juan Paulo Wiff, Ryuma Malik Matsuda, Hiroyuki Shimada, Hirofumi Sumi, Yasunobu Mizutani, Yuichi Mikami, Kosuke Yamauchi, Tomohiro Kuroha, Masashi Mori
This work presents the reversible operation between fuel cell and steam electrolysis modes in a protonic ceramic cell (PCC) with a bi-layer electrolyte structure composed of BaZrYbO and BaZrCeYYbO. PCC using the bi-layer electrolyte demonstrated a slightly less leakage current and an improved performance than other samples using only BaZrYbO electrolyte. In the fuel cell mode, the cell exhibited the
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Structural and property regulation of double ceramic phase–reinforced AlCoCrFeNiTiZr–based high entropy alloy coatings by pulsed–wave lasers Ceram. Int. (IF 5.2) Pub Date : 2024-03-18 Zhen Li, Jianwei Dong, Yang Yang, Qi Ma, Zhen Luo
In-situ synthesis ZrC and TiC reinforced AlCoCrFeNiTiZr–based high entropy alloy (HEA) coatings were successfully synthesized on R60702 using pulsed–laser cladding. The effects of pulse frequency (5, 50, 500, and 5000 Hz) on microstructure evolution, microhardness, wear resistance, and corrosion resistance were investigated. The results demonstrate that the HEA coatings consists of phases including
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The construction of structural defects in MoAlB thin films by leveraging the enhanced Kirkendall effect for improved infrared stealth performance Ceram. Int. (IF 5.2) Pub Date : 2024-03-18 Yagang Zhang, Guojun Zhang, Caixia Wang, Zhangwen Xie, Tao Wang, Jiachen Zhang, Quan Zhao, Wenzhe Wang, Tong Xin
MoAlB, known for its exceptional oxidation resistance and anti-ablation properties, holds significant promise as a protective thin film for high-temperature components in military equipment. However, the high thermal conductivity of MoAlB poses a challenge to its compatibility with infrared stealth performance. In this study, structural defects were intentionally implanted into the MoAlB thin film
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Effects of TiO2 on fiber spinnability, structure, and mechanical properties of glasses derived from simulated lunar soils Ceram. Int. (IF 5.2) Pub Date : 2024-03-18 Mengzhao Ding, Yunpeng Li, Huimin Han, Letong Song, Lida Luo, Hong Li, Qingwei Wang
The construction of lunar stations for research and habitation requires high-performance building materials that can adapt to the harsh lunar environment. One of the feasible building materials is fiber-reinforced composites, for which the composition of glass fibers can be designed like lunar soils, i.e., terrestrial basalt, and in turn the “lunar glass” can be drawn into fibers. Because of a wide
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Development of metakaolin-based geopolymeric asymmetric membrane for oil-in-water emulsion microfiltration Ceram. Int. (IF 5.2) Pub Date : 2024-03-18 Alessandro Filipponi, Giulia Masi, María Matos, José M. Benito, Gemma Gutiérrez, Maria Chiara Bignozzi
This study investigated the potential application of geopolymeric material for the separation of oil-in-water emulsions in wastewater treatment. For the first time, an asymmetric membrane made of geopolymers was developed for this specific separation process. The performances of the geopolymeric membrane in oil separation were compared with those obtained by a commercial ceramic membrane. The study