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Preparation method of double perovskite type and yttrium oxide compounded negative temperature coefficient thermistor material
The invention relates to a preparation method of a double perovskite type and yttrium oxide compounded negative temperature coefficient thermistor material. According to the method, composite powder is formed by taking MnO2, Ni2O3, Co2O3 and Y2O3 as raw materials through high-energy ball milling and adding different dispersing agents. The novel double perovskite type and yttrium oxide compounded negative temperature coefficient thermistor material with the material constant B100-600 DEG C = 3900-4580 K, the temperature of 100 DEG C and the electrical resistivity of 32820-77460 omega.cm is obtained by mixing and ball milling, pre-sintering, re-mixing and ball milling, cold isostatic pressing molding, high-temperature sintering and electrode coating and burning. The composite thermistor material prepared by the method is stable in performance and high in consistency. The thermistor material has obvious negative temperature coefficient characteristics in a range of 100-700 DEG C, and is suitable for manufacturing high-temperature thermistors.
本发明涉及一种双钙钛矿型与氧化钇复合的负温度系数热敏电阻材料的制备方法，该方法以MnO2、Ni2O3、Co2O3、Y2O3为原料，经过高能球磨，添加不同分散剂而形成的复合粉体。经过混合球磨、预烧、再混合球磨，冷等静压成型、高温烧结、涂烧电极，即得到一种新型的材料常数为B100‑600℃=3900‑4580 K，温度100℃电阻率为32820‑77460Ω·cm的双钙钛矿型与氧化钇复合的负温度系数热敏电阻材料。采用本发明制备的复合热敏电阻材料性能稳定，一致性好。该热敏电阻材料在100‑700℃范围具有明显的负温度系数特性，适合制造高温热敏电阻器。
Preparation method of double perovskite type and yttrium oxide compounded negative temperature coefficient thermistor material
The invention relates to a preparation method of a double perovskite type and yttrium oxide compounded negative temperature coefficient thermistor material. According to the method, composite powder is formed by taking MnO2, Ni2O3, Co2O3 and Y2O3 as raw materials through high-energy ball milling and adding different dispersing agents. The novel double perovskite type and yttrium oxide compounded negative temperature coefficient thermistor material with the material constant B100-600 DEG C = 3900-4580 K, the temperature of 100 DEG C and the electrical resistivity of 32820-77460 omega.cm is obtained by mixing and ball milling, pre-sintering, re-mixing and ball milling, cold isostatic pressing molding, high-temperature sintering and electrode coating and burning. The composite thermistor material prepared by the method is stable in performance and high in consistency. The thermistor material has obvious negative temperature coefficient characteristics in a range of 100-700 DEG C, and is suitable for manufacturing high-temperature thermistors.
本发明涉及一种双钙钛矿型与氧化钇复合的负温度系数热敏电阻材料的制备方法，该方法以MnO2、Ni2O3、Co2O3、Y2O3为原料，经过高能球磨，添加不同分散剂而形成的复合粉体。经过混合球磨、预烧、再混合球磨，冷等静压成型、高温烧结、涂烧电极，即得到一种新型的材料常数为B100‑600℃=3900‑4580 K，温度100℃电阻率为32820‑77460Ω·cm的双钙钛矿型与氧化钇复合的负温度系数热敏电阻材料。采用本发明制备的复合热敏电阻材料性能稳定，一致性好。该热敏电阻材料在100‑700℃范围具有明显的负温度系数特性，适合制造高温热敏电阻器。
Preparation method of double perovskite type and yttrium oxide compounded negative temperature coefficient thermistor material
一种双钙钛矿型与氧化钇复合的负温度系数热敏电阻材料的制备方法
ZHAO QING (author) / WANG XIAOFENG (author) / HE DONGLIN (author) / CHANG AIMIN (author)
2022-01-28
Patent
Electronic Resource
Chinese
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