无机材料学报2011，Vol.26Issue(9)：929-932,4.DOI:10.3724/SP.J.1077.2011.00929
燃烧法合成铪酸钇粉体及其透明陶瓷的制备
Fabrication of Transparent Y2Hf2O7 Ceramic from Combustion Synthesized Powders
邹小庆 1周国红 1易海兰 1杨燕 1王士维1
作者信息
- 1. 中国科学院 上海硅酸盐研究所,上海 200050
- 折叠
摘要
Abstract
Y(NO3)3, HfCl4 and EDTA as raw materials,Y2Hf2O7 nanopowder were successfully prepared by combustion synthesis method. The as-burnt powder were calcined at 1200X2 and then ball-milled for 15h. The powders were formed into green bodies with a size of φ20mm × 2.5mm by cold isostatic pressing (CIP, 200MPa). Y2Hf2O7 transparent ceramics were obtained by sintering the green bodies at 1850°C in vacuum for 6h. The resultant ceramics showed a transmittance of 50% in the visible spectral region. The sintering behavior of the prepared Y2Hf2O7 powders was investigated. When the sintering temperature was above 1850℃, sintering temperature had little effect on the transmittance of the ceramic. Meanwhile the grain size became larger with sintering temperature increasing.关键词
燃烧合成法/Y2Hf2O7/透明陶瓷/真空烧结Key words
combustion synthesis/ Y2Hf2O7/ transparent ceramic/ vacuum sintering分类
化学化工引用本文复制引用
邹小庆,周国红,易海兰,杨燕,王士维..燃烧法合成铪酸钇粉体及其透明陶瓷的制备[J].无机材料学报,2011,26(9):929-932,4.
