Nonohmic ZnO ceramics including Bi.sub.2 O.sub.3, CoO, MnO, Sb.s

Details Nonohmic ZnO ceramics including Bi.sub.2 O.sub.3, CoO, MnO, Sb.s Nonohmic ZnO ceramics including Bi.sub.2 O.sub.3, CoO, MnO, Sb.s

1976-12-01

1979-04-03

Guynn, Herbert B.

Compositions

Electrically conductive or emissive compositions

Metal compound containing

106 53, 106 54, 252518, H01B 108

Patent

active

041476700

ABSTRACT:
Nonohmic ZnO ceramics including the following additives have the voltage nonlinear exponent .alpha. of 30 or more, the dielectric constant .epsilon. of about 1000 or less, the loss factor (tan .delta.) of less than 10%, and small variations caused in the breakdown voltage V.sub.i by load and large current pulses. The additives listed by molecular formulae are given in % by mol. The glass components are given for Nos. 1 through 4 in % by weight, symbols of elements being representative of borosilicate lead and/or zinc glass.

REFERENCES:
patent: 2950995 (1960-08-01), Place et al.
patent: 3598763 (1971-08-01), Matsuoka et al.
patent: 3663458 (1972-05-01), Masuyama et al.
patent: 3764566 (1973-10-01), Matsuoka et al.
patent: 3903226 (1975-09-01), Iga et al.
patent: 3962144 (1976-06-01), Matsuura et al.
patent: 4041436 (1977-08-01), Kouchich et al.
patent: 4046847 (1977-09-01), Kresge
Leiser, Importance of Lead in Glass, The Glass Industry, Oct. 1963, pp. 574-576 and 594.

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