Chemical Bond Analysis of Single Crystal Growth of Magnesium Oxide
来源期刊：JOURNAL OF RARE EARTHS2006年增刊第1期
论文作者：Xue Dongfeng Zhang Xu
Key words：magnesium oxide; crystal structure; chemical bond;
Abstract: Starting from the crystallographic structure of magnesium oxide (MgO), both the chemical bond model of solids and Pauling's third rule (polyhedral sharing rule) were employed to quantitatively analyze the chemical bonding structure of constituent atoms and single crystal growth. Our analytical results show that MgO single crystals prefer to grow along the <100> direction and the growth rate of the {100} plane is the slowest one. Therefore, the results show that the {100} plane of MgO crystals can be the ultimate morphology face, which is in a good agreement with our previous experimental results. The study indicate that the structure analysis is an effective tool to control the single-crystal growth.
Xue Dongfeng1，Zhang Xu1
(1.State Key Laboratory of Fine Chemicals, Department of Materials Science and Chemical Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China)
Abstract:Starting from the crystallographic structure of magnesium oxide (MgO), both the chemical bond model of solids and Pauling''s third rule (polyhedral sharing rule) were employed to quantitatively analyze the chemical bonding structure of constituent atoms and single crystal growth. Our analytical results show that MgO single crystals prefer to grow along the <100> direction and the growth rate of the {100} plane is the slowest one. Therefore, the results show that the {100} plane of MgO crystals can be the ultimate morphology face, which is in a good agreement with our previous experimental results. The study indicate that the structure analysis is an effective tool to control the single-crystal growth.
Key words:magnesium oxide; crystal structure; chemical bond;
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