稀土学报（英文版）
稀土學報（英文版）
희토학보（영문판）
JOURNAL OF RARE EARTHS
2004年
6期
749-751
,共3页
李中华%李昕%陈刚%苏铭汉%韦永德
李中華%李昕%陳剛%囌銘漢%韋永德
리중화%리흔%진강%소명한%위영덕
sodium tungsten bronze%rare earths gaseous permeation%structural analysis%conductivity%rare earths
The cubic sodium tungsten bronzes, NaxWO3(x=0.854 and 0.814)were prepared by rare earths gaseous permeation method. Structural analysis was carried out by Rietveld method from powder X-ray diffraction data. The X-ray diffraction profile calculated with cubic P32 models are in good agreement with the observed X-ray diffraction patterns. There is only a little difference in W-O bond and Na-O bond between Na0.854WO3 and Na0.814WO3. Conductivity measurements indicate that NaxWO3 show anomalous semiconducting behavior and percolation model was used to interpret it.
