摘要
采用固相烧结法制备无铅压电陶瓷K_(0.5)Na_(0.52)Nb_(1-x)Sb_xO_3,其掺杂量x取值分别为0、0.02、0.03、0.04、0.05、0.06,对其进行相关性能和常数测定。通过相关试验及测定得出结论:烧结温度为1 140℃时,掺杂水平x为0.02,样品的压电常数d_(33)=111pC/N,介电常数ε_r=1 200,机械品质因数Q_m=10,机电耦合系数kp=0.387,介电损耗tanδ=0.11,该压电陶瓷具有良好的压电性能和铁电性。
This paper uses solid state sintered technology to prepare leadless piezoceramics K0.5Na0.52Nb1-xSbxO3, where level of doping x values respectively 0, 0.02, 0.03, 0.04, 0.05, 0.06 and perform measurement of relevant performance and constant. Through relevant test and measurement, it is not hard to conclude： when firing temperature is 1140℃, level of doping x is 0.02, the piezoceramic modulus of sample d33 is 111 pC/N, value of permittivity εr is 1 200, mechanical quality factor Qm is 10, electro-mechanical coupling factor kp is 0.387, dielectric losses tan3 is 0.11, which means that it is successful to develop piezoceramics with excellent piezoelectric property and ferroelectricity.
出处
《陶瓷》
CAS
2017年第4期29-34,共6页
Ceramics
关键词
无铅压电陶瓷
压电效应
固相法
掺杂
铁电性能
Leadless piezoceramics
Piezoelectric effect
Solid state sintered technology
Doping
Ferroelectricity
