研究了 Mn掺杂对 (Na0.5Bi0.5)0.92Ba0.08TiO3系陶瓷介电、压电与铁电性能的影响. X- ray衍 射结构分析表明掺杂适量的 Mn得到单一的钙钛矿结构,无第二相出现.当添加 0.3 wt % MnCO3 时,介电常数达到 1850;矫顽场强 Ec降低至 3.54kV/mm;压电常数 d33达到 160× 10- 12 C/N.该 材料的温度稳定性也得到改善.
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