Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – By mechanically introducing gas into material
Patent
1981-05-06
1983-12-06
Morgenstern, Norman
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
By mechanically introducing gas into material
264 61, 264 62, 427 80, 357 10, C04B 3332
Patent
active
044193106
ABSTRACT:
Formulations for a variety of air sintered ceramic barrier layer capacitors are provided wherein from 0.3 to 1.7 mole % of donor material is added to a strontium titanate and the relative amounts of strontium and titanium have been adjusted so that large-small cation balance and charge balance may be achieved by strontium vacancies, e.g. ##EQU1## These low cost materials have large grains and exhibit high dielectric constants.
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Heywang, Semiconducting Barium Titanate, Journal of Materials Science 6 (1971) 1214-1226.
Johnson et al., Dielectric Relaxation in Strontium Titanates Containing Rare-Earth Ions-Journal of Applied Physics, vol. 41, No. 7, Jun. 1970.
Burn Ian
Neirman Stephen M.
Bueker Richard
Morgenstern Norman
Sprague Electric Company
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