Point Defects in Nb_<22>O_<54> Oxidized at 200℃
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概要
- 論文の詳細を見る
The structural changes in a Nb_<22>O_<54> crystal heated at 200℃ in air were examined using 1 MV high-resolution transmission electron microscopy. At the initial stage of oxidation, NbO_6 octahedra are locally shifted by one atomic distance. This movement induces two types of point defect, which array in a string of limited length. Both require additional oxygen atoms at the interstitial sites and, therefore, can act as a possible mechanism for oxidation. At the advanced stage of oxidation, a superstructure is formed.
- 社団法人応用物理学会の論文
- 1982-02-05
著者
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HORIUCHI Shigeo
National Institute for Research in Inorganic Materials
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Kimura Shigeyuki
National Institute for Research in Inorganic Materials
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