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Title:
VOLTAGE-NONLINEAR RESISTANCE CERAMIC COMPOSITION
Document Type and Number:
Japanese Patent JPH04175259
Kind Code:
A
Abstract:

PURPOSE: To obtain a voltage-nonlinear resistance ceramic composition for low-voltage use having excellent resistance to surge current by using zinc oxide as a main component, adding specific amounts of oxides of Bi, Co, Mn, Sb, etc., as subsidiary components and adding oxides of Th, Gd, Yb, etc., to the obtained composition.

CONSTITUTION: The objective voltage-nonlinear resistance ceramic composition for low-voltage use is produced by including 0.01-3.00mol% of at least one kind of Th, Gd and Yb in terms of ThO2, Gd2O3 and Yb2O3 in a composition composed mainly of ZnO and containing at least Bi, Co, Mn and Sb as subsidiary components in amounts of 0.1-3.0mol% each of Bi2O3, Co2O3 and MnO2 in terms of Bi2O3, Co2O3 and MnO2, respectively.


Inventors:
ONOMI TADASHI
Application Number:
JP30196690A
Publication Date:
June 23, 1992
Filing Date:
November 06, 1990
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
C04B35/453; C04B35/00; H01C7/10; (IPC1-7): C04B35/00; H01C7/10
Attorney, Agent or Firm:
Akira Kobiji (2 outside)