液相前驱体转化法制备ZrC及其表征  

Preparation and Characterization of ZrC Powders by Liquid Precursor Conversion Method

作　　者：李庆刚[1] 程新[1] 王志[1] 史国普[1] 

机构地区：[1]济南大学材料科学与工程学院,山东济南250022

出　　处：《济南大学学报（自然科学版）》2013年第3期221-224,共4页Journal of University of Jinan(Science and Technology)

基　　金：国家自然科学基金(51142010)

摘　　要：采用前驱体转化法,在1 600℃下碳热还原反应热解含锆前驱体,制备碳化锆(ZrC)粉末,研究其裂解工艺,采用X射线衍射仪(XRD)、扫描电子显微镜(ESM)及场发射投射电子显微镜(TEM),对ZrC粉末的相组成及显微结构进行表征和分析。结果表明,经1 600℃热处理后获得面心立方的ZrC粉末为颗粒状球形,粒径≤100 nm,粒径及分布状况均较均匀。Zirconium carbide powders were fabricated using ZrC precursor at 1 600 ℃ through carbon thermal reduction by liquid precursor conversion method.The pyrolysis process was studied in details and the phase composition and microstructure of the powder were characterized by XRD,SEM and TEM.The results showed that face-centred cubic ZrC powders,in which the particles are spherical,with size less 100 nm,and distribute uniformly,were obtained after heat treatment at 1 600 ℃.

关 键 词：液相前驱体转化 碳化锆粉末 热处理 

分 类 号：TQ174.1[化学工程—陶瓷工业]