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NTC THERMISTOR CERAMIC, METHOD FOR PRODUCING NTC THERMISTOR CERAMIC, AND NTC THERMISTOR
NTC THERMISTOR CERAMIC, METHOD FOR PRODUCING NTC THERMISTOR CERAMIC, AND NTC THERMISTOR
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机译:NTC热敏电阻陶瓷,NTC热敏电阻陶瓷的制造方法以及NTC热敏电阻
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摘要
A ceramic main body 1 is composed of a (Mn,Ni)3O4— or (Mn, Co)3O4-based ceramic material. A first phase has a spinel structure. A second phase is formed of high-resistance plate crystals. The second phase is present in the first phase in a dispersed state. A heated pathway having a predetermined pattern is formed on a surface of the ceramic main body by the application of heat by laser irradiation. In the heated pathway, the second phase disappears and is crystallographically equivalent to the first phase. The plate crystals of the second phase precipitate at 800° C. or lower in the cooling substep during firing. The formation of the heated pathway facilitates the adjustment of the resistance of an NTC thermistor. Thereby, provided are an NTC thermistor ceramic with a resistance that can be easily adjusted to a lower value even after sintering, a method for producing the NTC thermistor ceramic, and an NTC thermistor.
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机译:陶瓷主体 1 B>由(Mn,Ni) 3 Sub> O 4 Sub>-或(Mn,Co) 3 < / Sub> O 4 Sub>基陶瓷材料。第一相具有尖晶石结构。第二相由高电阻板状晶体形成。第二相以分散状态存在于第一相中。通过激光照射加热,在陶瓷主体的表面上形成具有预定图案的加热路径。在加热路径中,第二相消失,并且在晶体学上与第一相等效。在焙烧期间的冷却子步骤中,第二相的板状晶体在800℃或更低的温度下析出。加热路径的形成促进了NTC热敏电阻的电阻的调节。从而,提供了即使在烧结后也具有容易将电阻调整为较低值的NTC热敏电阻陶瓷,NTC热敏电阻陶瓷的制造方法以及NTC热敏电阻。
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