Novel NTC ceramics based on pyrochlore-type A(2)Ti(2)O(7) (A = Sm, Eu, Y) titanates for high-temperature thermistors | |
Kang, X (Kang, Xin) [1] , [2]; Li, XH (Li, Xiaohui) [2]; Chen, XY (Chen, Xiaoyi) [2]; Gao, B (Gao, Bo) [1] , [2]; Zhao, PJ (Zhao, Pengjun) [2]; Chen, ZY (Chen, Zhaoyang) [2]; Kong, WW (Kong, Wenwen) [1] , [2]; Chang, AM (Chang, Aimin) [1] , [2] | |
刊名 | CERAMICS INTERNATIONAL |
2022 | |
卷号 | 48期号:6页码:8773-8778 |
关键词 | Pyrochlore-type structure Titanate ceramics Negative temperature coefficient High temperature NTC thermistor |
ISSN号 | 0272-8842 |
DOI | 10.1016/j.ceramint.2022.01.181 |
英文摘要 | In this study, a series of novel negative temperature coefficient thermistor materials based on A(2)Ti(2)O(7) (A = Sm, Eu, Y) titanate ceramics have been developed for high-temperature applications. The A(2)Ti(2)O(7) (A = Sm, Eu, Y) ceramics showed cubic pyrochlore structures with dense morphology in X-ray diffraction and scanning electron microscopic analyses. These ceramics showed typical NTC characteristics in a wide temperature range of 673-1473 K, accompanied by resistance drift rates of 2.71%, 1.63%, and 4.95% for 400 h of ageing at 1173 K. The proposed ceramics have high resistivity and thermal constants B that ensure their better sensitivity at high temperatures and also show unique oxygen insensitivity. These properties outperform those of traditional high-temperature NTC materials composed of perovskite-type or scheelite-type ceramics, making A(2)Ti(2)O(7) (A = Sm, Eu, Y) ceramics promising candidates for fabricating high-temperature NTC thermistors. |
WOS记录号 | WOS:000760286500005 |
内容类型 | 期刊论文 |
源URL | [http://ir.xjipc.cas.cn/handle/365002/8159] |
专题 | 新疆理化技术研究所_材料物理与化学研究室 |
通讯作者 | Kong, WW (Kong, Wenwen) [1] , [2]; Chang, AM (Chang, Aimin) [1] , [2] |
作者单位 | 1.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China 2.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China |
推荐引用方式 GB/T 7714 | Kang, X ,Li, XH ,Chen, XY ,et al. Novel NTC ceramics based on pyrochlore-type A(2)Ti(2)O(7) (A = Sm, Eu, Y) titanates for high-temperature thermistors[J]. CERAMICS INTERNATIONAL,2022,48(6):8773-8778. |
APA | Kang, X .,Li, XH .,Chen, XY .,Gao, B .,Zhao, PJ .,...&Chang, AM .(2022).Novel NTC ceramics based on pyrochlore-type A(2)Ti(2)O(7) (A = Sm, Eu, Y) titanates for high-temperature thermistors.CERAMICS INTERNATIONAL,48(6),8773-8778. |
MLA | Kang, X ,et al."Novel NTC ceramics based on pyrochlore-type A(2)Ti(2)O(7) (A = Sm, Eu, Y) titanates for high-temperature thermistors".CERAMICS INTERNATIONAL 48.6(2022):8773-8778. |
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