Abstract Barium Zirconate Titanate-Barium Calcium Titanate (BCT-BZT) is one of the lead-free systems, which exhibits remarkable ferroelectric properties akin to lead-based perovskite materials. In this study, we have synthesized x(Ba0.85Ca0.15)TiO3-(1−x)Ba(Zr0.15Ti0.85)O3 (where x = 0.4, 0.5, 0.6) monophonic powders by hydrothermal method at 150 °C. X-ray diffraction reveals the pure tetragonal phase. Scanning electron microscopy (SEM) studies make known that the crystal growth is uniform due to low temperature, and that the ceramics are highly dense and polycrystalline. The single semicircle indicates bulk behavior. The bulk resistance decreases with the increase in temperature showing a typical semiconducting property, negative temperature coefficient of resistance (NTCR) behavior.

中文翻译：

---

研究低温晶体生长对无铅BCT-BZT陶瓷结构和铁电性能的影响

摘要 锆钛酸钡-钛酸钙钡（BCT-BZT）是一种无铅体系，具有类似于铅基钙钛矿材料的显着铁电性能。在本研究中，我们通过水热法在 150 °C 下合成了 x(Ba0.85Ca0.15)TiO3-(1−x)Ba(Zr0.15Ti0.85)O3（其中 x = 0.4, 0.5, 0.6）单声道粉末. X 射线衍射显示纯四方相。扫描电子显微镜 (SEM) 研究表明，由于低温，晶体生长是均匀的，并且陶瓷是高密度和多晶的。单个半圆表示批量行为。体电阻随温度升高而降低，显示出典型的半导体特性，即负电阻温度系数 (NTCR) 行为。