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US4645622A Electrically conductive ceramic material 失效
导电陶瓷材料

Electrically conductive ceramic material
摘要:
Electrically conductive ceramic having the composition La.sub.x Ca.sub.y MnO.sub.3+.DELTA. characterized by x= 0.44 to 0.48, Y= 0.42 to 0.50 and the sum of the mol numbers of La and Ca is between 1 to 15% (preferably about 10%) smaller than the mol number of Mn.
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