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Preparation method of high-temperature negative temperature coefficient thermistor material
The invention relates to the field of preparation of thermistor materials,, and especially relates to a preparation method of a high-temperature negative temperature coefficient thermistor material. The invention discloses a preparation method of a high-temperature negative temperature coefficient thermistor material. a metal-doped spherical cerium dioxide nano powder material is combined with nano manganese dioxide powder and silicon dioxide nanoparticles; the negative temperature coefficient thermistor material is prepared by adopting a solid-phase synthesis method, and the material has stable high-temperature physical, chemical and electrical properties, and particularly has small change of resistance to high-temperature direct-current load along with time. The material has no phase change in a use range; the material has the characteristics of wide applicable temperature range, proper sensitivity under a high-temperature condition, controllable room-temperature resistivity and material constant and low high-temperature aging coefficient.
本发明涉及热敏电阻材料制备领域，具体关于一种高温负温度系数热敏电阻材料的制备方法；本发明的一种高温负温度系数热敏电阻材料的制备方法，本方法将一种金属掺杂球型二氧化铈纳米粉体材料结合纳米二氧化锰粉体和二氧化硅纳米粒，采用固相合成法制备出一种负温度系数热敏电阻材料，该材料具备高温物理、化学、电气性能稳定，尤其电阻对高温直流负荷随时间变化小的高温负温度系数热敏电阻材料；该材料在使用范围内无相变；该材料具有的适用温度范围广，高温条件下灵敏度合适，室温电阻率和材料常数可控、高温老化系数低的特点。
Preparation method of high-temperature negative temperature coefficient thermistor material
The invention relates to the field of preparation of thermistor materials,, and especially relates to a preparation method of a high-temperature negative temperature coefficient thermistor material. The invention discloses a preparation method of a high-temperature negative temperature coefficient thermistor material. a metal-doped spherical cerium dioxide nano powder material is combined with nano manganese dioxide powder and silicon dioxide nanoparticles; the negative temperature coefficient thermistor material is prepared by adopting a solid-phase synthesis method, and the material has stable high-temperature physical, chemical and electrical properties, and particularly has small change of resistance to high-temperature direct-current load along with time. The material has no phase change in a use range; the material has the characteristics of wide applicable temperature range, proper sensitivity under a high-temperature condition, controllable room-temperature resistivity and material constant and low high-temperature aging coefficient.
本发明涉及热敏电阻材料制备领域，具体关于一种高温负温度系数热敏电阻材料的制备方法；本发明的一种高温负温度系数热敏电阻材料的制备方法，本方法将一种金属掺杂球型二氧化铈纳米粉体材料结合纳米二氧化锰粉体和二氧化硅纳米粒，采用固相合成法制备出一种负温度系数热敏电阻材料，该材料具备高温物理、化学、电气性能稳定，尤其电阻对高温直流负荷随时间变化小的高温负温度系数热敏电阻材料；该材料在使用范围内无相变；该材料具有的适用温度范围广，高温条件下灵敏度合适，室温电阻率和材料常数可控、高温老化系数低的特点。
Preparation method of high-temperature negative temperature coefficient thermistor material
一种高温负温度系数热敏电阻材料的制备方法
SI HUIXIAN (author) / ZHANG YIZHONG (author) / WU YOUJIA (author)
2020-09-01
Patent
Electronic Resource
Chinese
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