摘要
为获得具有良好PTC效应的陶瓷元件,采用复合掺杂,通过柠檬酸盐溶胶-凝胶法及二步合成法,经低温煅烧干凝胶制备无铅BaTiO3基PTC粉体.制得的粉体晶粒小、分散性好、低团聚,达纳米级.并通过TG-DTA、XRD、SEM和TEM等测试手段对其性能做了进一步研究.
In order to obtain the ceramic devices with good PTCeffect,we find it very important to prepare the ceramic powder at first.Now with citrat sol-gel process and twice-through method,at low temperature sintered,the donor-doped BaTiO3 powder without lead has been prepared.Results show that the PTC powder is the powder with fine crystallization,well dispersion ,low aggregation,nanometer scale.It have been studied by the methods of TG-DTA,SRD,SEM,TEM.
出处
《湘潭大学自然科学学报》
CAS
CSCD
北大核心
2006年第3期90-94,共5页
Natural Science Journal of Xiangtan University
基金
河北唐山市科委资助项目(0112203)
