NTC热敏电阻用Bi/Mg改性NiO陶瓷的电导率和电稳定性

IF 0.9 4区 材料科学 Q3 MATERIALS SCIENCE, CERAMICS
Linling Huang, Zhicheng Li, Kaifeng Li, You Zhang, Hong Zhang, S. Leng
{"title":"NTC热敏电阻用Bi/Mg改性NiO陶瓷的电导率和电稳定性","authors":"Linling Huang, Zhicheng Li, Kaifeng Li, You Zhang, Hong Zhang, S. Leng","doi":"10.2298/pac2302172h","DOIUrl":null,"url":null,"abstract":"Thermistors with negative temperature coefficient (NTC) of resistivity are important components for temperature sensors and actuators. High material constant (B value) of NTC thermistor, i.e. high-temperature sensitivity, is one of key focuses. Herein, Bi/Mg modified NiO based ceramics for NTC thermistors were prepared by conventional solid-state reaction method. Introduction of Bi2O3 significantly enhances the sintering ability of ceramics and reduces the sintering temperature from 1380 to 1250?C. Mg-doping (i.e. preparation of Ni1-xMgxO ceramics, where x=0, 0.02, 0.05, 0.07 and 0.1) has significant effect on room temperature resistivity (?25). Phase composition, microstructure, electrical property and electrical stability were investigated. All prepared ceramics have the phase with rock-salt structure and show typical NTC characteristics with B values higher than 5300K. The electrical stability with an optimized resistance-change rate of 1.02%after being aged at 150?C for 500 h is achieved. The electrical properties of the ceramics were analysed by combining X-ray photoelectron spectra with complex impedance spectra.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Electrical conductivity and electrical stability of Bi/Mg modified NiO ceramics for NTC thermistors\",\"authors\":\"Linling Huang, Zhicheng Li, Kaifeng Li, You Zhang, Hong Zhang, S. Leng\",\"doi\":\"10.2298/pac2302172h\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Thermistors with negative temperature coefficient (NTC) of resistivity are important components for temperature sensors and actuators. High material constant (B value) of NTC thermistor, i.e. high-temperature sensitivity, is one of key focuses. Herein, Bi/Mg modified NiO based ceramics for NTC thermistors were prepared by conventional solid-state reaction method. Introduction of Bi2O3 significantly enhances the sintering ability of ceramics and reduces the sintering temperature from 1380 to 1250?C. Mg-doping (i.e. preparation of Ni1-xMgxO ceramics, where x=0, 0.02, 0.05, 0.07 and 0.1) has significant effect on room temperature resistivity (?25). Phase composition, microstructure, electrical property and electrical stability were investigated. All prepared ceramics have the phase with rock-salt structure and show typical NTC characteristics with B values higher than 5300K. The electrical stability with an optimized resistance-change rate of 1.02%after being aged at 150?C for 500 h is achieved. The electrical properties of the ceramics were analysed by combining X-ray photoelectron spectra with complex impedance spectra.\",\"PeriodicalId\":20596,\"journal\":{\"name\":\"Processing and Application of Ceramics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2023-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Processing and Application of Ceramics\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.2298/pac2302172h\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Processing and Application of Ceramics","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.2298/pac2302172h","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0

摘要

电阻率为负温度系数的热敏电阻是温度传感器和执行器的重要元件。NTC热敏电阻的高材料常数(B值),即高温灵敏度是其研究的重点之一。本文采用常规固相反应法制备了Bi/Mg改性NiO基NTC热敏电阻陶瓷。Bi2O3的加入显著提高了陶瓷的烧结能力,使烧结温度从1380℃降低到1250℃。mg掺杂(即制备Ni1-xMgxO陶瓷,其中x=0, 0.02, 0.05, 0.07和0.1)对室温电阻率(?25)有显著影响。研究了复合材料的相组成、显微组织、电学性能和电稳定性。制备的陶瓷均具有岩盐结构相,具有典型的NTC特征,B值高于5300K。在150℃时效后,电稳定性最佳,电阻变化率为1.02%。温度达到500h。结合x射线光电子能谱和复阻抗谱分析了陶瓷的电学性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Electrical conductivity and electrical stability of Bi/Mg modified NiO ceramics for NTC thermistors
Thermistors with negative temperature coefficient (NTC) of resistivity are important components for temperature sensors and actuators. High material constant (B value) of NTC thermistor, i.e. high-temperature sensitivity, is one of key focuses. Herein, Bi/Mg modified NiO based ceramics for NTC thermistors were prepared by conventional solid-state reaction method. Introduction of Bi2O3 significantly enhances the sintering ability of ceramics and reduces the sintering temperature from 1380 to 1250?C. Mg-doping (i.e. preparation of Ni1-xMgxO ceramics, where x=0, 0.02, 0.05, 0.07 and 0.1) has significant effect on room temperature resistivity (?25). Phase composition, microstructure, electrical property and electrical stability were investigated. All prepared ceramics have the phase with rock-salt structure and show typical NTC characteristics with B values higher than 5300K. The electrical stability with an optimized resistance-change rate of 1.02%after being aged at 150?C for 500 h is achieved. The electrical properties of the ceramics were analysed by combining X-ray photoelectron spectra with complex impedance spectra.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Processing and Application of Ceramics
Processing and Application of Ceramics MATERIALS SCIENCE, CERAMICS-
CiteScore
1.90
自引率
9.10%
发文量
14
审稿时长
10 weeks
期刊介绍: Information not localized
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信