Sm 2 O 3 掺杂(Ba 0.7 Ca 0.3 )TiO 3 -Ba(Zr 0.2 Ti 0.8 )O 3 无铅压电陶瓷的制备与性能
Source abstract
Abstract
采用固相合成法制备了Sm 2 O 3 掺杂的(Ba 0.7 Ca 0.3 )TiO 3 -Ba(Zr 0.2 Ti 0.8 )O 3 (BCZT)无铅压电陶瓷. 借助XRD、SEM等手段对该陶瓷的显微结构与电性能进行了研究. 结果表明, Sm 2 O 3 的掺杂降低了BCZT无铅压电陶瓷的烧结温度并使居里温度点 T c 从85℃提高到95℃. 当Sm 2 O 3 掺杂量为0.02wt%~0.1wt%时, 样品具有典型ABO 3 型钙钛矿结构. Sm 2 O 3 掺杂量为0.02wt%时, 所得陶瓷样品具有最优综合电性能, 其压电常数 d 33 、机电耦合系数 k p 、机械品质因子 Q m 、介电损耗tan δ 和介电常数 e r 分别为590 pC/N、0.52、43、1.3%和3372.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Advanced ceramic materials synthesis
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