Metal oxide sintered compact for thermistor, thermistor element, thermisor temperature sensor, and manufacturing method for metal oxide sintered compact for thermistor
AssigneeMitsubishi Materials Corporation
InventorsKazutaka Fujiwara, Toshiaki Fujita
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Abstract
A metal oxide sintered compact used for a thermistor includes a composite oxide represented by the general expression La(Cr1-xMnx)O3 (with x=0.0 to 0.6). Furthermore, the thermistor element 3 includes the metal oxide sintered compact 2 for a thermistor and a pair of leads 1, one terminal of each of which is fixed to the metal oxide sintered compact 2 for a thermistor.
Claims20
A metal oxide sintered compact used for a thermistor, including a composite oxide represented by the general expression La(Cr1-xMnx)O3 (with x=0.0 to 0.6).
A manufacturing method for a metal oxide sintered compact used for a thermistor, including a step in which La2O3, Cr2O3, MnO2 provided in the form of powder are mixed and calcined so as to obtain calcined powder of composite oxide represented by the general expression La(Cr1-xMnx)O3 (with x=0.0 to 0.6).
A manufacturing method for a metal oxide sintered compact used for a thermistor, including:
- a step in which La2O3, Y2O3, Cr2O3, and MnO2, provided in the form of powder, are mixed and calcined so as to obtain calcined powder of a composite oxide represented by (La1-yYy)(Cr1-xMnx)O3 (with x=0.0 to 0.6, y=0.05 to 0.95);
- and
- a step in which the calcined powder thus obtained is molded and sintered.
A manufacturing method for a metal oxide sintered compact used for a thermistor, including a step in which mixture powder obtained by adding surplus quantity of Cr2O3 and MnO2 as compared with La2O3 is sintered so as to obtain a mixture sintered compact represented by the general expression (1−y)·La(Cr1-xMnx)O3+y·Mn2CrO4 (with x=0.0 to 0.6, y=0.05 to 0.95).
Dependencies are inferred from the claim text.