Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1981-04-06
1983-01-04
Dixon, Jr., William R.
Stock material or miscellaneous articles
Composite
Of inorganic material
252 623BT, 501136, 428699, 428701, B32B 904, C04B 3500
Patent
active
043672655
ABSTRACT:
An intergranular insulation type semiconductive ceramic having a high effective dielectric constant includes an electrically insulating dielectric layer situated in the grain boundaries of an alkaline-earth metal titanate, zirconate, or combination thereof. The alkaline-earth metals are barium, strontium, and calcium. The dielectric layer is made of a mixture of bismuth oxide (Bi.sub.2 O.sub.3) and one or more metal oxides from nickel oxide (NiO), alumina (Al.sub.2 O.sub.3), and cuprous oxide (Cu.sub.2 O).
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patent: 4143207 (1979-03-01), Itakura et al.
"Studies on SrTiO3 Boundary Layer Dielectric," Yamaji et al, Review of the Elec. Comm. Labs, 20, Nos. 7-8, Jul.-Aug. 1972, pp. 747-763.
"Classification and Dielectric Characteristics of the Boundary Layer Ceramic Dielectrics (BL Dielectrics)," Waku et al, Rev. of the Elec. Comm. Labs, 19, Nos., 5-6, May-Jun. 1971, pp.665-679.
Takiar Hem P.
Yu Chyang J.
Dixon Jr. William R.
North American Philips Corporation
Schechter Marc D.
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