Microstructural and electrical changes in Ca0.9R0.1CeNbMoO8 (R = Y, Sm, Nd, La) ceramics induced by rare-earth ion doping
文献类型:期刊论文
作者 | Liu, YF (Liu, Yafei)[ 1,2 ]; Fu, ZL (Fu, Zhilong)[ 1,3 ]; Chen, XY (Chen, Xingyu)[ 1,3 ]; Wei, YX (Wei, Yaxin)[ 1 ]; Zhang, B (Zhang, Bo)[ 1 ]; Chang, AM (Chang, Aimin)[ 1 ] |
刊名 | JOURNAL OF THE AMERICAN CERAMIC SOCIETY |
出版日期 | 2021 |
卷号 | 104期号:5页码:2134-2142 |
ISSN号 | 0002-7820 |
关键词 | electrical properties high-temperature stability rare-earth ions structure |
DOI | 10.1111/jace.17670 |
英文摘要 | Rare-earth ions doped Ca0.9R0.1CeNbMoO8 (R = Y, Sm, Nd, La) ceramics have been successfully prepared by solid-state method, and their modifications to the microstructure and electrical properties are also investigated. The rare-earth ions doped ceramics exhibit the scheelite structure. With the increase in the radius of rare-earth ions, the lattice distortion and bond interaction will be enhanced, and the consistency of grain size will be reduced. The ceramics exhibit negative temperature coefficient (NTC) thermistor characteristics in the temperature range of 473 K-1273 K, and the activation energy decreases with the increase of the radius of rare-earth ions. Rare-earth ions doping can increase the content of Ce3+ ions and promote the conductivity of ceramics. Except for Sm3+-doped ceramics, the high-temperature aging rate of other ceramics is less than 2%. The existence of some metastable Sm2+ ions in Sm3+-doped ceramics not only increases the activation energy, but also reduces the high-temperature stability of the ceramics. |
WOS记录号 | WOS:000611677400001 |
源URL | [http://ir.xjipc.cas.cn/handle/365002/7833] |
专题 | 新疆理化技术研究所_中国科学院特殊环境功能材料与器件重点试验室 新疆理化技术研究所_材料物理与化学研究室 |
通讯作者 | Zhang, B (Zhang, Bo)[ 1 ]; Chang, AM (Chang, Aimin)[ 1 ] |
作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi, Peoples R China 3.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, YF ,Fu, ZL ,Chen, XY ,et al. Microstructural and electrical changes in Ca0.9R0.1CeNbMoO8 (R = Y, Sm, Nd, La) ceramics induced by rare-earth ion doping[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2021,104(5):2134-2142. |
APA | Liu, YF ,Fu, ZL ,Chen, XY ,Wei, YX ,Zhang, B ,&Chang, AM .(2021).Microstructural and electrical changes in Ca0.9R0.1CeNbMoO8 (R = Y, Sm, Nd, La) ceramics induced by rare-earth ion doping.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,104(5),2134-2142. |
MLA | Liu, YF ,et al."Microstructural and electrical changes in Ca0.9R0.1CeNbMoO8 (R = Y, Sm, Nd, La) ceramics induced by rare-earth ion doping".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 104.5(2021):2134-2142. |
入库方式: OAI收割
来源:新疆理化技术研究所
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