Titanate Piezoelctric Ceramics The Study on Lead Manganese-Niobate Zirconate
zirconate titanate(PMnN-PZT) piezoelectric ceramics dependence of the lead manganese-niobate (PMnN) have been studied. The formula is Pb0.95Sr0.05(Mn1/3Nb2/3)x(Zr0.52Ti0.48)1-xO3 and the value of x changes from 0.03 to 0.07(x=0.03, 0.04, 0.05, 0.06 0.07). The experiment results suggest that all the samples formed single perovskite structure analyzed by XRD, and with the increase of PMnN, tetragonal phase decreased, tripartite phase increased, and the value of c/a decreased. The dielectric constant εT33 /ε0 piezoelectric constant d33, mechanical quality factor Qm and electromechanical coupling coefficient Kp obtained their optimum values respectively when x was 0.04, εT33 /ε0=1500 ～ 1600, d33=319pC/N, Qm=2900, Kp=0.594; at the same time, tanδ incereased gradually, when x was 0.04 its value was 0.3%; however, the Curie temperature Tc decreased gradually. The study focused on the elastic compliance coefficient SE11 and piezoelectric stress coefficient e31 dependence of the PMnN content. The results revealed that with the incerease of PMnN, SE11 as well as e31 decreased gradually, and when x was 0.04, SE11 =7.73×10-13m2/N, e31=45 C/m2.
PMnN-PZT piezoelectric properties electric properties elastic compliance coefficient SE11 piezoelectric stress coefficient e31 dielectric-temperature characteristics
Liu Yawei Sun Qingchi Ma Weibing Kong Deqian Zhang Yong
Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education,Tianjin Unive State Key Laboratory of New Ceramic and Fine Processing,Tsinghua University,Beijing,China
国际会议
西安
英文
121-125
2009-08-23（万方平台首次上网日期，不代表论文的发表时间）