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通过掺入不同含量的B2O3对BaTi0.75Zr0.25O3(BZT)陶瓷进行低温烧结,研究其对介电性能的影响,并采用X射线衍射进行物相分析.结果表明:掺杂B2O3的BZT陶瓷在1150℃烧结温度下得到的主晶相均为钙钛矿,且不存在明显的杂相.观察试样的表面形貌,当B2O3掺杂量为0%~1.5%时,陶瓷晶粒尺寸逐渐变大,而掺杂量为1.5%~2.5%时,晶粒尺寸稍微变小.随着B2O3含量的增加,BZT陶瓷的介电常数降低,介质损耗略微增大.与未掺杂的BZT陶瓷相比,掺杂B2O3的BZT陶瓷的烧结温度下降了300℃,掺杂1.5% B2O3的BZT陶瓷的结构和介电性能较好.

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