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- Title
Microstructure and electrical properties of SmO-doped ZnO-based linear resistance ceramics.
- Authors
Zhu, Jianfeng; Liu, Qian; Wang, Jingjing; Zhou, Yong; Ye, Wei; Wang, Fen
- Abstract
ZnO-based linear resistance ceramics were synthesized from ZnO-MgO-NiO-AlO-SiO-SmO at 1320 °C for 3 h by the conventional ceramics method. The microstructure and electrical properties of the linear resistance ceramics have been systematically investigated in detail. The experimental result indicates that appropriate amounts of SmO addition can obviously improve the resistance temperature coefficient of ZnO-based linear resistance ceramics compared with the SmO-free samples. The samples with the SmO content of 0.5 mol% exhibit excellent electrical properties with the resistivity of 209.8 Ω cm and the resistance temperature coefficient of 2.38 × 10/°C, which is improved by 46 and 92 %, respectively. Moreover, the nonlinear coefficient of voltage decreases to 1.15, decreased by 4.30 % and the relative density reaches to 96.43 %, increased by 4.91 %.
- Subjects
ELECTRIC properties of zinc oxide; TEMPERATURE coefficient of electric resistance; SINTERING; ELECTRICAL resistivity; ELECTRIC resistors
- Publication
Journal of Materials Science: Materials in Electronics, 2016, Vol 27, Issue 1, p818
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-015-3822-5