大连工业大学学报2017，Vol.36Issue(4)：283-286,4.
Y3+掺杂量对BaTiO3基热敏陶瓷性能的影响
Effect of Y3+ doping content on the properties of BaTiO3 based thermosensitive ceramics
摘要
Abstract
BaTiO3 based thermosensitive ceramics with different Y3+ doping content were prepared via traditional solid-phase method.The microstructure and morphology of the thermosensitive ceramics were characterized by XRD and SEM.The effects of Y3+ doping content on the room temperature resistivity, Curie temperature andRmax/Rmin were investigated.The results indicated that the room temperature resistivity of BaTiO3 based thermosensitive ceramics decreased firstly and then increased with Y3+ doping content increasing, while Rmax/Rmin showed the opposite tendency.The SEM images showed that the ceramic grain size also decreased with the increasing of Y3+ doping content, but the boundaries of too small grain were blurred and weakened the PTC performance in the process of sintering.When the mole content of Y3+ doping were 0.5% to 0.7%, the prepared BaTiO3 based thermosensitive ceramics exhibited best properties with the lowest room temperature resistivity of 14.9 Ω and Rmax/Rmin of 3.96×104.关键词
热敏陶瓷/Y3+掺杂/钛酸钡Key words
thermosensitive ceramics/Y3+ doping/BaTiO3分类
化学化工引用本文复制引用
杨斌,刘敬肖,史非,于玲,刘素花..Y3+掺杂量对BaTiO3基热敏陶瓷性能的影响[J].大连工业大学学报,2017,36(4):283-286,4.基金项目
教育部留学回国人员科研启动基金项目(20111139). （20111139）
