Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PRODUCTION OF PEROVSKITE TYPE COMPOUND POWDER
Document Type and Number:
Japanese Patent JPH06316414
Kind Code:
A
Abstract:

PURPOSE: To simply and easily improve dispersibility, packing ratio, dielectric property and piezoelectric property by pulverizing a perovskite type compound with a compacting pulverizer.

CONSTITUTION: A water based suspension (C) is obtained by mixing a hydrated oxide (A) of one or more kind of an element selected from Ba, Pb, Sr, Mg and Ca with a hydrated oxide (B) of one or more kind of an element selected from Ti, Zr, Hf and Sn having ≥50m2/g specific surface area so as to be (1.1-2.0):1 in mol ratio of component (A):component (B). Next, the perovskite type compound (D) is obtained by hydrothermal treating the component (C) at 100-250°C, classifying the obtained product and drying. Next, the component (D) is pulverized with the compacting pulverizer. If necessary, the component (D) is calcined at 100-700°C before or after pulverizing to produce the perovskite type compound powder.


Inventors:
Maruo, Masatake
Watanabe, Mitsuru
Moribe, Terukazu
Application Number:
JP1993000129937
Publication Date:
November 15, 1994
Filing Date:
May 06, 1993
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ISHIHARA SANGYO KAISHA LTD
International Classes:
C01G1/00; C01G23/04; C04B35/49; (IPC1-7): C01G1/00; C01G23/04