Microstructure and Properties of CePO_4 Ceramic  

作　　者：王丽娟 杜海燕 

机构地区：[1]Key Lab of Advanced Ceramics and Machining Technology (Tianjin University ), Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin 300072,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2006年第2期120-122,共3页武汉理工大学学报（材料科学英文版）

基　　金：FundedbytheNationalNaturalScienceFoundationofChina(No.50372044)

摘　　要：Cerium phosphate powders were synthesized by direct solid liquid reaction of cerium dioxide and phosphate acid at the Ce ： P ratio of 1 ： 1. Phase-pure and fine grain size CePO4 powers could be obtained by calcining the as received powders at the temperature higher than 600 ℃ . It is demonstrated that the grain size and morphology of the CePO4 powders were calcined at various temperatures. An interesting layered crystal structure and a series of microcracks that cross and occur along the extrusion stress direction on the extruded surface inside CePO4 were observed. The ductility and machinabililty of CePO4 ceramic are attributed to the layered structure. Continuous machining debris was observed on the turned surface.Cerium phosphate powders were synthesized by direct solid liquid reaction of cerium dioxide and phosphate acid at the Ce ： P ratio of 1 ： 1. Phase-pure and fine grain size CePO4 powers could be obtained by calcining the as received powders at the temperature higher than 600 ℃ . It is demonstrated that the grain size and morphology of the CePO4 powders were calcined at various temperatures. An interesting layered crystal structure and a series of microcracks that cross and occur along the extrusion stress direction on the extruded surface inside CePO4 were observed. The ductility and machinabililty of CePO4 ceramic are attributed to the layered structure. Continuous machining debris was observed on the turned surface.

关 键 词：cerium phosphate MACHINABLE layered structure 

分 类 号：TQ174[化学工程—陶瓷工业]