DIELECTRIC AND PIEZOELECTRIC CERAMICS FOR HIGH TEMPERATURE APPLICATIONS

被引:0
|
作者
Raengthon, Natthaphon [1 ]
Nikkel, Jason [1 ]
Ansell, Troy [1 ]
Cann, David P. [1 ]
机构
[1] Oregon State Univ, Sch Mech Ind & Mfg Engn, Corvallis, OR 97331 USA
关键词
TRANSITION;
D O I
暂无
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Perovskite materials have been widely embedded in many consumer and industrial electronics, both for capacitor applications in the case of dielectric materials, and for actuator, transducer and sensor applications in the case of piezoelectric materials. Functional devices used in high temperature environments, such as deep oil well instrumentation, geothermal exploration, and devices for aerospace applications require the persistence of materials' properties at high temperatures. In this paper, high potential capacitor and piezoelectric ceramics for high temperature applications are presented. High dielectric constant (K) materials based on 0.8BaTiO(3) - 0.2Bi(Zn1/2Ti1/2)O-3 solid solutions have been shown to have superior properties for high temperature capacitor applications. Studies of the temperature dependence of the dielectric properties have shown that the composition with Ba vacancies exhibits a high relative permittivity (epsilon(r) > 1150) and a low dielectric loss (tan delta < 0.05) that persist up to a temperature of 460 degrees C. This composition also shows a high resistivity in excess of 7.0 x 10(10) Omega-cm which remains unchanged up to a temperature of 270 degrees C as well as a large RC time constant (RC > 20 s). In the case of high temperature piezoelectric ceramics, solid solutions of PbTiO3 - BiScO3 - Bi(M1/2Ti1/2)O-3 ternary systems were studied, where M is Mg and Zn. The ratio of BiScO3 to Bi(M1/2T1/2)O-3 was kept at 1:1, while the concentration of PbTiO3 was varied. X-ray diffraction patterns showed that tetragonal symmetry was observed in compositions which contain a high concentration of PbTiO3 (> 60 mol%). Evidence of a morphotropic phase boundary (MPB) was observed with compositions containing PbTiO3 in the range of 52 56 mol%. At 70 mol% PbTiO3 compositions, high Curie temperatures (T-C) of 490 degrees C and 533 degrees C were observed for compositions containing Mg and Zn, respectively.
引用
收藏
页码:9 / 13
页数:5
相关论文
共 50 条
  • [41] Applications of Piezoelectric Ceramics.
    Diekstall, Klaus
    Elektronik Munchen, 1982, 31 (06): : 79 - 83
  • [42] PIEZOELECTRIC CERAMICS - CHARACTERISTICS AND APPLICATIONS
    BERLINCOURT, D
    JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1981, 70 (06): : 1586 - 1595
  • [43] New high temperature morphotropic phase boundary piezoelectric ceramics
    Shrout, TR
    Eitel, R
    Randall, CA
    Alberta, E
    Rehrig, PW
    ISAF 2002: PROCEEDINGS OF THE 13TH IEEE INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS, 2002, : 277 - 280
  • [44] Thermal Degradation and Aging of High-Temperature Piezoelectric Ceramics
    Gotmare, Sunil W.
    Leontsev, Serhiy O.
    Eitel, Richard E.
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2010, 93 (07) : 1965 - 1969
  • [45] Piezoelectric ceramics with high piezoelectricity and broad temperature usage range
    Guo, Qinghu
    Li, Fei
    Xia, Fangquan
    Wang, Pengbin
    Gao, Xiaoyi
    Hao, Hua
    Liu, Hanxing
    Sun, Huajun
    Zhang, Shujun
    JOURNAL OF MATERIOMICS, 2021, 7 (04) : 683 - 692
  • [46] TEMPERATURE STABILITY OF PIEZOELECTRIC CERAMICS
    OGAWA, T
    WAKINO, K
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1985, 24 : 123 - 125
  • [47] Ceramics for dry running and high temperature applications
    Anon
    Konstruktion, 2007, (10):
  • [48] Layered machinable ceramics for high temperature applications
    Barsoum, MW
    Brodkin, D
    ElRaghy, T
    SCRIPTA MATERIALIA, 1997, 36 (05) : 535 - 541
  • [49] High piezoelectric property and low dielectric constant PZN-PZT ceramics
    Zhou, Dongxiang
    Deng, Yihua
    Gong, Shuping
    Yan, Bowu
    Zhuang, Zhiqiang
    Han, Ke
    HIGH-PERFORMANCE CERAMICS IV, PTS 1-3, 2007, 336-338 : 7 - +
  • [50] COMPOSITION AND TEMPERATURE-DEPENDENCE OF THE DIELECTRIC, PIEZOELECTRIC AND ELASTIC PROPERTIES OF PURE PZT CERAMICS
    ZHUANG, ZQ
    HAUN, MJ
    JANG, SJ
    CROSS, LE
    IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1989, 36 (04) : 413 - 416