材料导报 2021, Vol. 35 Issue (Z1): 56-58
无机非金属及其复合材料
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掺RuO2 对Mn1.4 Co1.5 Zn0.1 陶瓷电性能的影响
杨俊1 , 何创创1 , 罗小芳2 , 尚勇1 , 班秀峰1
1 中国振华云科电子有限公司,贵阳 550018 2 中国振华新云电子有限公司,贵阳550018
Effect of RuO2 -doping on the Electrical Properties of Mn1.4 Co1.5 Zn0.1 Ceramics
YANG Jun1 , HE Chuangchuang1 , LUO Xiaofang2 , SHANG Yong1 , BAN Xiufeng1
1 Yunke Electronic Co. Limited, Zhenhua Group, Guiyang 550018, China 2 Xinyun Electronic Co. Limited, Zhenhua Group, Guiyang 550018, China
摘要 以Mn1.4 Co1.5 Zn0.1 为原料,RuO2 为掺杂剂,采用固相反应法制备了x wt%RuO2 (x =0,3,6,9,12,15)+Mn1.4 Co1.5 Zn0.1 单层片式NTC热敏电阻材料,研究了该材料的微观结构和电性能。结果表明:通过RuO2 掺杂可以制备低阻高B 型NTC热敏电阻材料,随着RuO2 含量的增加,样品B 值和电阻率迅速减小,随着烧结温度升高,电阻率先降低后升高,B 值缓慢增加。当烧结温度为1 130 ℃、RuO2 掺杂量为15wt%时,样品具有较好的NTC特性:B 值为3 012 K,ρ25 为32 Ω·cm。
关键词:
热敏陶瓷
B值
电阻率
烧结温度
Abstract: Using Mn1.4 Co1.5 Zn0.1 as the staring materials,RuO2 as the dopants,x wt%RuO2 (x =0,3,6,9,12,15)+Mn1.4 Co1.5 Zn0.1 NTC(negative temperature coefficient) thermistors were prepared by the solid-state reaction method.The microstructure and electric properties of the thermistors were studied. The results show that NTC thermistor with low resistivity and high B vaule can be obtained by doping RuO2 . The B value and resistivity decrease rapidly with the increase of RuO2 doping amount.With the increase of sintering temperature,the resistivity decreases first and then increase, while the B value increase slowly.The sample shows a good NTC behavior when the sintering temperature is 1 130 ℃ and RuO2 doping amount is 15wt%,and its B value and ρ 25 are 3 012 K and 32 Ω·cm .
Key words:
thermal sensitive ceramic
B value
electrical resistivity
sintering temperature
发布日期: 2021-07-16
基金资助: 工信部强基工程项目(O714-EMTC-02-00869)
通讯作者:
542982171@qq.com
作者简介: 杨俊,中国振华集团云科电子有限公司中级工程师,2016年获电子科技大学硕士研究生学历。申请国家发明专利8项,授权3项,在国内外学术期刊上发表论文4篇,承担省部级项目4项,获省部级科技进步三等奖一项。
引用本文:
杨俊, 何创创, 罗小芳, 尚勇, 班秀峰. 掺RuO2 对Mn1.4 Co1.5 Zn0.1 陶瓷电性能的影响[J]. 材料导报, 2021, 35(Z1): 56-58.
YANG Jun, HE Chuangchuang, LUO Xiaofang, SHANG Yong, BAN Xiufeng. Effect of RuO2 -doping on the Electrical Properties of Mn1.4 Co1.5 Zn0.1 Ceramics. Materials Reports, 2021, 35(Z1): 56-58.
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http://www.mater-rep.com/CN/Y2021/V35/IZ1/56
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