Title:
【発明の名称】高性能圧電セラミックスおよびその製造方法
Document Type and Number:
Japanese Patent JP3044304
Kind Code:
B1
Abstract:
The present invention is intended to provide piezoelectric ceramic materials having far better strain characteristics than that of conventional piezoelectric ceramics, as well as a novel method for producing such piezoelectric ceramics, and the present invention involves solid solution piezoelectric ceramics primarily comprising the complex perovskite compound Pb(Ni⅓Nb⅔)O3, the simple perovskite compound PbTiO3, and PbZrO3, wherein the aforementioned ceramics primarily comprise compositions within a triangle in which the compositional vertices are (X=52, Y=34, Z=14), (X=49, Y=37, Z=14), and (X=49, Y=34, Z=17), where Pb(Ni⅓Nb⅔)O3 is X mol %, PbTiO3 is Y mol %, and PbZrO3 is Z mol % (X+Y+Z=100) among the triangular coordinates in the phase diagram in which the vertices are Pb(Ni⅓Nb⅔) O3, PbTiO3, and PbZrO3, as well as a method for producing such solid solution ceramics.
More Like This:
Inventors:
Keiji Kusumoto
Tadashi Sekiya
Tadashi Sekiya
Application Number:
JP37732998A
Publication Date:
May 22, 2000
Filing Date:
December 28, 1998
Export Citation:
Assignee:
Director of Industrial Technology
International Classes:
C04B35/49; C04B35/499; C04B35/64; H01L41/187; (IPC1-7): C04B35/49; H01L41/187
Domestic Patent References:
| JP7133152A | ||||
| JP8151262A |
Attorney, Agent or Firm:
220000334 Director, Nagoya Institute of Industrial Technology, AIST