(Ba 1- x Ca x )(Ti 0.82 Zr 0.18 )O 3 陶瓷结构与介电性能研究
Source abstract
Abstract
采用固相反应法制备了(Ba 1- x Ca x )(Ti 0.82 Zr 0.18 )O 3 (BCZT, 0≤ x ≤0.26)陶瓷, 研究了Ca 2+ 掺杂对BCZT陶瓷微观结构和介电性能的影响. 结果表明: 当Ca 2+ 掺杂量为0.16时, BCZT陶瓷出现第二相CaTiO 3 , 其四方率c/a随Ca 2+ 掺杂量的增加先减小再增大, 当Ca 2+ 掺杂量为0.06时达到最小值1.00276. 通过容差因子和晶格参数的计算确认了Ca 2+ 已进入到A位; 随Ca 2+ 掺杂量的增加, 晶粒得到细化, 居里温度向低温方向移动, 介电峰被压低并展宽, 且逐渐呈现铁电弥散性.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Electrical and Thermal Properties of Materials
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