Metal oxide group thermistor material
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United States of America Patent
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Sep 21, 1993
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N/A
app pub date -
Jan 21, 1993
filing date -
Aug 16, 1990
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Abstract
Metal oxide group NTC theremistor material made from MnCO.sub.3 +NiO+CuO+Co.sub.3 O.sub.4 +FeO.sub.3 TiO.sub.2 group as a basic composition. The invention is characterized by metal oxide group thermistor material made from MnCO.sub.3 +NiO+ZnO+Co.sub.3 O.sub.4 +Fe.sub.2 O.sub.3 +TiO.sub.2 group or MnCO.sub.3 +NiO+CuO+ZnO+Fe.sub.2 O.sub.3 +TiO.sub.2 group as a basic composition having respectively composition amounts by weight for each ingredient described in the text. According to the invention, the sintering temperature of the material can be reduced relative to the conventional material, and therefore there is advantage that manufacturing expense of the thermistor can be reduced.
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