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《JOURNAL OF BEIJING POLYTECHNIC UNIVERSITY》 1999-04
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Effects of Y_2O_3 and CeO_2 on the Processing of Rare-earth-tungsten Materials

Chen Ying;Me Zuoren;Zhang Jiuxing;Zhou Meiling(College of Materials Science and Engineering, Beijing Polytechnic University, Beijing, 100022)  
The effects of Y2O3 and CeO2 on the processing of the tungsten electrodes were analyzed by means of SEM and x-ray diffraction. The results show that the growing of tungsten powders and the crystal granularity after sintering are greatiy retarded by Y2O3, and comparatively cess retarded by CeO2. Beside tungstates or oxytungstates are the main phases of rare earth in the sintered rods, and their stability affects the materials characteristics of heat processing.
【Fund】: 北京市教委重点基金
【CateGory Index】: TG146.411
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