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首页> 外文期刊>Crystal growth & design >Effect of Holding Temperature on Growth of Ruby Crystal Films via Molybdenum Trioxide Flux Evaporation-Solubility of Aluminum Oxide, Growth Rate, and Material Balance
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Effect of Holding Temperature on Growth of Ruby Crystal Films via Molybdenum Trioxide Flux Evaporation-Solubility of Aluminum Oxide, Growth Rate, and Material Balance

机译：通过氧化铝，生长速率和材料平衡溶解 - 氧化钼，生长速率和材料平衡溶解度对红宝石晶体膜生长的影响

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摘要

Ruby (Al2O3:Cr) is used not only for jewelry but also in various industrial materials because of its excellent mechanical, optical, and chemical properties. Ruby crystals have been grown using the molybdenum trioxide (MoO3) flux evaporation method. Herein, we report the effect of holding temperature on the growth of ruby crystal films via MoO3 flux evaporation. All temperature effects were investigated considering the epitaxial growth of ruby crystal film on sapphire crystal substrates. First, the solubility curve of aluminum oxide (Al2O3) in MoO3 flux was examined in the temperature range 1050-1200 degrees C. The difference in solubilities between 1050 and 1200 degrees C was similar to 0.4 mol %. However, higher temperatures increased the crystal film growth rate due to increased flux evaporation rate. The difference in the crystal growth rate produced a difference in the surface pattern of the ruby crystal films. The surface of the ruby crystal films exhibited ellipsoidal patterns with a wide step interval at 1100 degrees C and circular patterns with a narrow step interval at 1200 degrees C. Finally, the material balance between the dissolved mass supplied by the dissolution of the substrates and the mass of grown ruby crystals was investigated. All dissolved solutes were found to be crystallized in ruby crystals, either in film or in particle form.
机译：Ruby（Al2O3：Cr）不仅用于珠宝，而且在各种工业材料中使用，因为其优异的机械，光学和化学性能。使用三氧化钼（MOO3）通量蒸发方法种植了红宝石晶体。在此，我们通过MOO3通量蒸发报告了保持温度对Ruby晶体膜生长的影响。考虑到蓝宝石晶体基材上的红宝石晶体膜外延生长，研究了所有温度效应。首先，在1050-1200℃的温度范围内检查MOO3通量中氧化铝（Al2O3）的溶解度曲线。1050和1200℃之间的溶解度差异类似于0.4mol％。然而，由于增加的通量蒸发速率，较高的温度提高了晶体膜生长速率。晶体生长速率的差异产生了红宝石晶体膜的表面图案的差异。红宝石晶体膜的表面在1100℃和1200摄氏度下具有狭窄的步进间隔的圆形图案的椭圆形图案表现出椭圆形图案。最后，由基板溶解提供的溶解质量之间的材料平衡研究了种植的红宝石晶体的质量。发现所有溶解的溶质均在薄膜或颗粒形式中以红宝石晶体结晶。

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  • 来源
    《Crystal growth & design》 |2020年第3期|共8页
  • 作者

    Ayuzawa Shunsuke; Suzuki Sayaka; Hidaka Miki; Oishi Shuji; Teshima Katsuya;

  • 作者单位

    Nagano Prefecture Nanshin Inst Technol Nagano 3994511 Japan;

    Shinshu Univ Dept Mat Chem Fac Engn Nagano 3808553 Japan;

    Shinshu Univ Dept Mat Chem Fac Engn Nagano 3808553 Japan;

    Nagano Prefecture Nanshin Inst Technol Nagano 3994511 Japan;

    Shinshu Univ Fac Engn &

    Res Initiat Supra Mat Dept Mat Chem Nagano 3808553 Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
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