Semiconducting ceramic, semiconducting ceramic element, and meth

Details Semiconducting ceramic, semiconducting ceramic element, and meth Semiconducting ceramic, semiconducting ceramic element, and meth

2000-02-29

2000-10-24

Kopec, Mark

Compositions: ceramic

Ceramic compositions

Yttrium, lanthanide, actinide, or transactinide containing

2525211, 2525212, 338 22SD, 331158, H01B 108, C04B 3550, H01C 710, H03B 512

Patent

active

061367419

ABSTRACT:
A semiconducting ceramic contains a lanthanum cobalt oxide as a major component represented by La.sub.x CoO.sub.3 wherein 0.600.ltoreq.x.ltoreq.0.999. The average crystal grain size of cobalt oxide present in the major component is not more than about 20 .mu.m. A change in resistivity between the semiconducting ceramic products can be suppressed.

REFERENCES:
patent: 6054403 (2000-04-01), Kawase et al.
Sanaris-Rodriguez et al "Effect of pargici size on the magnetic . . ." Bol. Soc. Esp. Ceram Vidrio (1998) 37(1) 25-30 (Abstract only).
"Mossbauer Studies of the High-Spin-Low-Spin Equilibria and the Localized-Collective Electron Transition in LaCoO.sub.3 "; V.G. Bhide, et al.; Physical Review B; vol. 6, No. 3; Aug. 1, 1972; pp. 1021-1032.

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