首页|Development of Transparent MgAl_2O_4 Spinel Ceramics
Development of Transparent MgAl_2O_4 Spinel Ceramics
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NETL
NSTL
Trans Tech Publications Ltd
The present paper summarizes the technology and basic process for fabricating transparent ceramic MgAl_2O_4 spinel and introduces a scalable production technique. Fully transparent polycrystalline spinel has been prepared by combined vacuum sintering, hot-pressing, sintering in H_2 atmosphere and hot isostatic pressing(HIP). The optical transmittance of the specimen sintered at 1500 following HIP at 1800 was nearly the same as that of single crystal spinel. When radiated by y-ray and X- ray, colorless spinel became brown due to V-type color centers, which decreased its transmittance. On the other hand, the spinel ceramics' resistance to radiation improved by doping CeO_2.
Fa-hui Li、Jian-Bao Li、Hong Lin、Cun-Xin Huang、Mu-Yun Lei、Hong-Bing Du
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Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China Research Institute of Synthetic Crystals, Beijing 100018, China
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
Research Institute of Synthetic Crystals, Beijing 100018, China
NETL
NSTL
Trans Tech Publications Ltd
