Abstract

Utilizing mining and metallurgical waste as a resource is one of the effective methods to tackle the issue of solid waste accumulation. In this study, the CaO–MgO–Al₂O₃–SiO₂ system glass–ceramics were prepared based on the traditional melt-casting technique using iron ore slag as the main raw material. Investigations were done on how different iron ion concentrations affected glass–ceramics properties. And the migration pattern of iron ions was explored deeply using Raman spectroscopy and FTIR. XRD revealed the crystallization ability of augite and magnetite increasing as the iron ions grew. The combination of vibrating sample magnetometer, electron backscatter diffraction, and MFM techniques indicates that the distribution of magnetite, grain size, and structure are connected to the magnetic performances of glass–ceramics. Glass–ceramics has outstanding magnetic properties and flexural strength. Therefore, it has vast potential for future development in electronic devices, wear-resistant applications, and electromagnetic shielding.

中文翻译：

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富铁 CMAS 体系微晶玻璃中 Fe 离子的迁移机制和磁性

摘要

矿冶废弃物资源化利用是解决固体废弃物堆积问题的有效方法之一。本研究以铁矿渣为主要原料，采用传统熔铸工艺制备了CaO-MgO-Al ₂ O ₃ -SiO _{2系微晶玻璃。}研究了不同铁离子浓度如何影响微晶玻璃的性能。并利用拉曼光谱和傅立叶变换红外光谱对铁离子的迁移模式进行了深入探讨。XRD表明辉石和磁铁矿的结晶能力随着铁离子的增长而增强。振动样品磁力计、电子背散射衍射和 MFM 技术的结合表明，磁铁矿的分布、晶粒尺寸和结构与玻璃陶瓷的磁性能有关。微晶玻璃具有优异的磁性能和弯曲强度。因此，其未来在电子器件、耐磨应用、电磁屏蔽等方面具有巨大的发展潜力。