摘要
采用固相烧结法制备MnO2掺杂的BiFeO3-PbTiO3-Bi(Zn1/2Ti1/2)O3-PbZrO3(BF-PT-BZT-PZ)压电陶瓷,研究了不同MnO2掺杂量对材料结构及压电介电性能的影响。实验结果表明,适量的MnO2掺杂,不仅能使晶粒长大,提高晶界强度,而且可以改善材料的介电压电性能。当MnO2掺杂量为0.1mol%时,880℃(5h)烧结的陶瓷样品性能参数为:d33=97pC/N,kp=0.29,kt=0.37,εr=390,tanδ~0.02。
Mn O2 doped Bi Fe O3-Pb Ti O3-Bi( Zn1 /2Ti1 /2) O3-Pb Zr O3( BF-PT-BZT-PZ) ceramics were prepared by high temperature solid state method. The effects of variant Mn O2 contents on microstructure,piezoelectric and dielectric properties were studied. The results show that grain sizes and grain boundary strength could be increased by appropriate Mn O2 dopants. The piezoelectric and dielectric properties of BF-PT-BZT-PZ ceramics are improved with Mn O2 contents. When the amount of Mn O2 is 0. 1mol% and sintered at 880 ℃ for 5 h,the ceramics show optimized properties of d33= 97 p C / N,kp= 0. 29,kt= 0.37,εr= 390,tanδ ~ 0. 02.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2015年第9期2532-2535,共4页
Journal of Synthetic Crystals
基金
国家自然科学基金(50875181)
关键词
铁酸铋-钛酸铅
MnO2掺杂
高温固相法
压电性能
BiFeO3-PbTiO3
MnO2 doping
high temperature solid state method
pizeoelectric property