Ceramic compositions having high dielectric constant

Details Ceramic compositions having high dielectric constant Ceramic compositions having high dielectric constant

1977-01-13

1978-03-14

McCarthy, Helen M.

Compositions: coating or plastic

Coating or plastic compositions

Marking

29 2542, 106 735, 156 89, 252 635, C04B 3526

Patent

active

040789381

ABSTRACT:
A ceramic composition allowing low-temperature sintering at a temperature below 1000.degree. C and having a high dielectric constant over 5000 essentially contains Pb(Fe 2/3 W 1/3)O.sub.3 and Pb(Fe 1/3 Nb 2/3)O.sub.3, in which the molecular ratio of Pb(Fe 2/3 W 1/3)O.sub.3 to Pb(Fe 1/3 Nb 2/3)O.sub.3 ranges from about 0.2 to 0.5.

REFERENCES:
chem Abstracts, 73, item 92523f.
Chem. Abstracts, 71, item 73674y.
Luff, D. et al., "Ferroelectric Ceramics with High Pyroelectric Properties", Trans. and Journal, Brit. Ceramic Soc. 73 (7), 1974, pp. 251-264.

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