摘要
用固相反应法制备了Ｌａ＿（１－ｘ）Ｓｒ＿ｘＣｏＯ＿（３－ｙ）导电陶瓷材料，研究了制备工艺对烧结性能的影响。实验结果表明：烧结体的致密度取决于预烧温度、烧成温度及保温时间，此外还与成型方法等因素有关。在１０００～１３００℃保温２～１５ｈ获得了高密度、导电性良好的立方钙钛矿型Ｌａ＿（１－ｘ）Ｓｒ＿ｘＣｏＯ＿（３－ｙ）（ｘ＝０．５，０．６）陶瓷材料。用Ｘ射线分析了材料的相组成和结构。
The conductive ceramics,La_(1-x)Sr_xCoO_(3-y),were prepared by solid-state reactionmethod.Effect of preparation technology on sinterability were studied.The results showed that thebulk density of the sintering body depended oncalcining temperature,sintering temperature,soaking time,as well as shaping methods. The cubicperovskite-type La_(1-x)Sr_xCoO_(3-y)(X=0.5,0.6)ceramic materials with high density and goodelectrical conductivity were obtained at temperaturebetween 1000 and 1300℃ for 2 to 15h.The phaseand structure of the materials were characterized byX-ray diffraction.
出处
《功能材料》
EI
CAS
CSCD
1995年第6期537-540,共4页
Journal of Functional Materials
关键词
钴酸锶镧陶瓷
烧结性
导电性
导电陶瓷
制备
cobalt strontium lanthanum oxideceramics,sinter ability,perovskite,conductive
