MA Hui 1,2 CHEN Quanshui 1,2 LIANG Panyi 1 YU Xingguo 1 LIU Xiaodong 1.2
(1.Department of Material Science and Engineering, East China Institute of Technology, Fuzhou Jiangxi 344000, China; 2.Key Laboratory of Nuclear Resources and Environment of Ministry of Education, East China Institute of Technology, Nanchang Jiangxi 330013,China)
Abstract:The monazite-based waste form doped with Nd was synthesized by co-precipitation. The chemical composition and microstructure of monazite were tested by the X -ray diffraction,scanning election microscopy and electron probe microanalysis. The result showed that the monoclinic monazite ceramic was formed; and the high density ceramic contained granular crystals and larger lamellar crystals, 0.2~1.5μm in grain size; it was doped with 3wt% Nd. The ceramic satisfies the basic requirements for geological disposal of HLW.
Key words: monazite; neodymium; CeP04; synthesis