Long Range Ordering of Interstitial Oxygen in Vanadium near V_4O
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概要
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The crystal structure of interstitial solid solutions of vanadium with 14-23 at % oxygen has been determined by X-ray and electron diffraction. It is shown that the oxygen atoms occupy regularly the octahedral interstitial sites, forming a body-centered tetragonal superlattice of which the stoichiometry is approximately V_<16>O_3. The unit cell contains a 4×4×2 array of b.c.t. metal subcells with the axial ratio larger than unity. Both the cell dimensions of superlattice and sublattice increase of oxygen concentration. The superstructure is formed 400℃ and transforms to another b.c.t. structure with preferential occupation of oxygen atoms like the Fe-C martensite above that temperature.
- 社団法人日本物理学会の論文
- 1973-04-05
著者
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HIRABAYASHI Makoto
The Research Institute for Iron,Steel and Other Metals,Tohoku University
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Hiraga Kenji
The Research Institute For Iron Steel And Other Metals
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Hiraga Kenji
The Research Institute For Iron Steel And Other Metals Tohoku University
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Hirabayashi Makoto
The Research Institute For Iron Steel And Other Metals
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