Abstract The 0-3 connectivity lead-free barium calcium stannate titanate (BCTS)-Portland cement (PC) composites were produced by pressing and curing techniques. The effect of BCTS ceramic content on microstructure and dielectric properties of composites were studied. Scanning electron microscope images at the interfacial zone of composites showed denser microstructure between Portland cement matrix and BCTS ceramic. The dielectric constant and dielectric loss of BCTS-Portland cement composites were also found to depend on the frequency in the range tested. The dielectric results indicate that the BCTS ceramic can improve the dielectric constant (lower dielectric loss) in composites. The dielectric constant followed the cube model.

中文翻译：

---

0-3连通无铅BCTS-波特兰水泥复合材料的微观结构和介电性能

摘要 采用压制固化技术制备了0-3连通无铅锡酸钡钙（BCTS）-硅酸盐水泥（PC）复合材料。研究了BCTS陶瓷含量对复合材料微观结构和介电性能的影响。复合材料界面区的扫描电子显微镜图像显示波特兰水泥基体和 BCTS 陶瓷之间的微观结构更致密。还发现 BCTS-波特兰水泥复合材料的介电常数和介电损耗取决于测试范围内的频率。介电结果表明，BCTS 陶瓷可以提高复合材料的介电常数（较低的介电损耗）。介电常数遵循立方体模型。