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Perovskite type high-temperature thermal sensitive ceramic electric resistance material and preparation method thereof
The invention discloses a preparation method of a perovskite type high-temperature thermal sensitive ceramic material, which comprises the following steps: by taking barium carbonate, calcium carbonate, zirconium dioxide, titanium dioxide and manganese dioxide as raw materials, conducting mixing, conducting grinding, conducting calcining, carrying out cold isostatic compaction, conducting sintering at high temperature and coating and burning an electrode, thereby obtaining the perovskite type high-temperature thermal sensitive ceramic electric resistance material with the material constant of B400 DEG C/900 DEG C being 12509-13303 K, the resistivity of 664.4-416.6 [omega].cm at the temperature of 900 DEG C and the aging coefficient of 0.19-0.76% after aging for 500 hours at 900 DEG C. The thermal sensitive electric resistance material is stable in performance and good in consistency, has obvious negative temperature coefficient characteristics in the temperature range of 200-1100 DEG C, and is suitable for manufacturing high-temperature thermistors.
本发明公开了一种钙钛矿型高温热敏陶瓷材料的制备方法，该材料以碳酸钡、碳酸钙、二氧化锆、二氧化钛和二氧化锰为原料，经混合研磨、煅烧、冷等静压成型、高温烧结、涂烧电极，即可得到材料常数为B400℃/900℃＝12509‑13303K，温度900℃电阻率为664.4‑416.6Ω·cm，900℃老化500小时老化系数为0.19‑0.76％的钙钛矿型高温热敏陶瓷电阻材料。该热敏电阻材料性能稳定，一致性好，在温度200℃‑1100℃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。
Perovskite type high-temperature thermal sensitive ceramic electric resistance material and preparation method thereof
The invention discloses a preparation method of a perovskite type high-temperature thermal sensitive ceramic material, which comprises the following steps: by taking barium carbonate, calcium carbonate, zirconium dioxide, titanium dioxide and manganese dioxide as raw materials, conducting mixing, conducting grinding, conducting calcining, carrying out cold isostatic compaction, conducting sintering at high temperature and coating and burning an electrode, thereby obtaining the perovskite type high-temperature thermal sensitive ceramic electric resistance material with the material constant of B400 DEG C/900 DEG C being 12509-13303 K, the resistivity of 664.4-416.6 [omega].cm at the temperature of 900 DEG C and the aging coefficient of 0.19-0.76% after aging for 500 hours at 900 DEG C. The thermal sensitive electric resistance material is stable in performance and good in consistency, has obvious negative temperature coefficient characteristics in the temperature range of 200-1100 DEG C, and is suitable for manufacturing high-temperature thermistors.
本发明公开了一种钙钛矿型高温热敏陶瓷材料的制备方法，该材料以碳酸钡、碳酸钙、二氧化锆、二氧化钛和二氧化锰为原料，经混合研磨、煅烧、冷等静压成型、高温烧结、涂烧电极，即可得到材料常数为B400℃/900℃＝12509‑13303K，温度900℃电阻率为664.4‑416.6Ω·cm，900℃老化500小时老化系数为0.19‑0.76％的钙钛矿型高温热敏陶瓷电阻材料。该热敏电阻材料性能稳定，一致性好，在温度200℃‑1100℃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。
Perovskite type high-temperature thermal sensitive ceramic electric resistance material and preparation method thereof
一种钙钛矿型高温热敏陶瓷电阻材料及其制备方法
XIE YONGXIN (author) / WANG ZHENHUA (author) / CHEN XIANGHUI (author) / CHANG AIMIN (author)
2021-11-05
Patent
Electronic Resource
Chinese
| European Patent Office | 2022
| European Patent Office | 2015