层状钴酸锶铋热电陶瓷制备的研究  

Study on Preparation of Layered Structure Bi_(0.5-x)Sr_(0.5)CoO_y Thermoelectric Ceramics

作　　者：李国晶[1] 张明强[2] 赵淑金[1] 杨涵崧[1] 王涛[1] 

机构地区：[1]佳木斯大学材料科学与工程学院,黑龙江佳木斯154007 [2]佳木斯大学印刷厂,黑龙江佳木斯154007

出　　处：《佳木斯大学学报（自然科学版）》2010年第2期251-253,共3页Journal of Jiamusi University：Natural Science Edition

基　　金：佳木斯大学科研项目(L2009-095)资助;校重点项目(Lz2009-012)资助

摘　　要：实验采用熔融法和普通固相烧结法制备镧掺杂钴酸锶铋陶瓷.利用TG-DSC,XRD和SEM等测试方法对陶瓷样品热分解过程、物相和形貌进行表征.实验结果表明:熔融法能够更好的制备出致密度高、晶粒发育完整、片层结构明显、晶粒具有一定取向的陶瓷样品.制备工艺对样品的显微结构和热电性能有重要影响.Samples of Bi0.5-xLaxSr0.5Co Oy ceramics havC been prepared by melting method and common solid--state reaction. The pyrolytic decomposition mechanism, phase composition and microstructure of the samples are investigated by TG/DSC, XRD and SEM. The results show that ceramics samples fabricated by melting method are of high relative density, perfect fine--grains, plate--shaped structure and orientated grains. The preparation technologies can influence the microstructure and thermoelectric properties of ceramics samples greatly.

关 键 词：熔融法 普通固相烧结法 Bi0.5-xLaxSr0.5Co Oy 陶瓷 

分 类 号：TQ174.75[化学工程—陶瓷工业]