Compositions: ceramic – Ceramic compositions – Titanate – zirconate – stannate – niobate – or tantalate or...
Patent
1988-12-02
1991-02-19
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Titanate, zirconate, stannate, niobate, or tantalate or...
252 629, 264 65, C04B 3546, C04B 3550
Patent
active
049944215
ABSTRACT:
In accordance with the process of the invention, there is formed electro-optical, barium lanthanum titanium niobate having a general uniform grain size of about 2 to about 20 microns. This material is formed using a raw material that comprises commercially available oxided particles of lanthanum, titanium, and niobium and carbonate of barium. The particles are calcined and then sintered under pressure, heat, and vacuumed to form a sintered mass. The mass is cooled in a controlled manner and then sliced to form wafers. The wafers are then heated in an oxidizing atmosphere to form the transparent electro-optical materials.
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patent: 4726099 (1988-02-01), Card et al.
Gutu-Nelle, Electrical Communication, Transparent Ceramics for Electro-Optical Applications, 1982, pp. 171-174.
Gutu-Nelle, Ferroelectrics, New Transparent Ceramics for Electro-Optical Applications, 1983, pp. 151-156.
Brunsman David M.
Dixon Jr. William R.
Eastman Kodak Company
Leipold Paul A.
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