Effect of MnO2 on the Piezoelectric Properties of the 0.75Pb(Zr0.47Ti0.53)O3-0.25Pb(Zn1/3Nb2/3)O3 Ceramics

被引：53

作者：

Park, Hwi-Yeol ^{[1
]}

Nam, Chan-Hee ^{[1
]}

Seo, In-Tae ^{[1
]}

Choi, Jae-Hong ^{[1
]}

Nahm, Sahn ^{[1
]}

Lee, Hyeung-Gyu ^{[2
]}

Kim, Kwang-Jin ^{[3
]}

Jeong, Seong-Min ^{[3
]}

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136701, South Korea

[2] Korea Elect Technol Inst, Gyeonggi Do 463816, South Korea

[3] Korea Inst Ceram Engn & Technol, Seoul 153801, South Korea

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2010年 / 93卷 / 09期

关键词：

TEMPERATURE; TRANSFORMER; FABRICATION; FREQUENCY;

D O I：

10.1111/j.1551-2916.2010.03888.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

MnO2 was added to 0.75Pb(Zr0.47Ti0.53)O-3-0.25Pb(Zn1/3Nb2/3)O-3 (0.75PZT-0.25PZN) ceramics in order to make a high-power piezoelectric material. The Mn4+ ion produced a defect dipole consisting of an Mn4+ ion and an oxygen vacancy that transformed the 0.75PZT-0.25PZN ceramics into hard materials. The Q(m) value significantly increased with the addition of MnO2 and reached a value of 1680 for the 1.5 mol% MnO2-added 0.75PZT-0.25PZN ceramic. Moreover, this specimen exhibited a high k(p) of 0.53 with a epsilon T-3/epsilon(0) of 1518. Additionally, the 1.5 mol% MnO2-added 0.75PZT-0.25PZN ceramics sintered at 900 degrees C for 4 h also exhibited high piezoelectric properties of Q(m)=1115, k(p)=0.50, and epsilon T-3/epsilon(0)=1537.

引用

页码：2537 / 2540

页数：4

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