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Zirconate system negative temperature coefficient thermistor material and preparation method thereof
The invention relates to a novel zirconate system negative temperature coefficient thermistor material. According to the system thermistor material, zirconium dioxide, samarium oxide, ytterbium oxide,neodymium oxide and gadolinium oxide are used as raw materials; zirconium dioxide is mixed with samarium oxide, ytterbium oxide, neodymium oxide or gadolinium oxide, and the zirconate system materialis obtained through ball milling, cold isostatic pressing forming and high-temperature sintering of the mixture; the electrical performance parameters of the system material comprise B[400 DEG C/1000DEG C]=9812-14060 K, and [Rho][1000 DEG C]=1.513-5.289*10<3> Ohm*cm. The prepared zirconate system negative temperature coefficient thermistor material has obvious negative temperature coefficient characteristics within a temperature interval of 400 DEG C-1000 DEG C; the system material is stable in electrical property, good in consistency, stable in aging property and insensitive to oxygen partial pressure, and is a material suitable for manufacturing a novel thermistor material for environments with high-temperature and different oxygen partial pressures.
本发明涉及一种新型锆酸盐体系负温度系数热敏电阻材料，该体系热敏电阻材料是以二氧化锆、三氧化二钐、三氧化二镱、三氧化二钕和三氧化二钆为原料，将二氧化锆分别与三氧化二钐、三氧化二镱、三氧化二钕或三氧化二钆混合，经过球磨、冷等静压成型、高温烧结，即得到锆酸盐体系材料，该体系材料电性能参数为：B=9812‑14060K，ρ=1.513‑5.289×10Ω·cm。本发明制备的锆酸盐体系负温度系数热敏电阻材料在温度区间400℃‑1000℃内具有明显的负温度系数特性，该体系材料电性能稳定，一致性好，老化性能稳定，对氧分压不敏感，是一类适合制造用于高温及不同氧分压环境的新型热敏电阻材料。
Zirconate system negative temperature coefficient thermistor material and preparation method thereof
The invention relates to a novel zirconate system negative temperature coefficient thermistor material. According to the system thermistor material, zirconium dioxide, samarium oxide, ytterbium oxide,neodymium oxide and gadolinium oxide are used as raw materials; zirconium dioxide is mixed with samarium oxide, ytterbium oxide, neodymium oxide or gadolinium oxide, and the zirconate system materialis obtained through ball milling, cold isostatic pressing forming and high-temperature sintering of the mixture; the electrical performance parameters of the system material comprise B[400 DEG C/1000DEG C]=9812-14060 K, and [Rho][1000 DEG C]=1.513-5.289*10<3> Ohm*cm. The prepared zirconate system negative temperature coefficient thermistor material has obvious negative temperature coefficient characteristics within a temperature interval of 400 DEG C-1000 DEG C; the system material is stable in electrical property, good in consistency, stable in aging property and insensitive to oxygen partial pressure, and is a material suitable for manufacturing a novel thermistor material for environments with high-temperature and different oxygen partial pressures.
本发明涉及一种新型锆酸盐体系负温度系数热敏电阻材料，该体系热敏电阻材料是以二氧化锆、三氧化二钐、三氧化二镱、三氧化二钕和三氧化二钆为原料，将二氧化锆分别与三氧化二钐、三氧化二镱、三氧化二钕或三氧化二钆混合，经过球磨、冷等静压成型、高温烧结，即得到锆酸盐体系材料，该体系材料电性能参数为：B=9812‑14060K，ρ=1.513‑5.289×10Ω·cm。本发明制备的锆酸盐体系负温度系数热敏电阻材料在温度区间400℃‑1000℃内具有明显的负温度系数特性，该体系材料电性能稳定，一致性好，老化性能稳定，对氧分压不敏感，是一类适合制造用于高温及不同氧分压环境的新型热敏电阻材料。
Zirconate system negative temperature coefficient thermistor material and preparation method thereof
一种锆酸盐体系负温度系数热敏电阻材料及制备方法
GAO BO (author) / LI XIAOHUI (author) / WANG YIGE (author) / CHANG AIMIN (author)
2020-08-18
Patent
Electronic Resource
Chinese
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