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首页> 外文期刊>Journal of Crystal Growth >Specific surface free energy of ruby single crystals from Mo- and Pb-based flux
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Specific surface free energy of ruby single crystals from Mo- and Pb-based flux

机译：基于钼和铅基助熔剂的红宝石单晶比表面自由能

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摘要

Ruby single crystals were synthesized from MoO_3, PbF_2, and PbF_2-B_2O_3 fluxes. Mo-based flux gave hexagonal bipyramidal crystals. On the other hand, plate-like crystals were given from Pb-based fluxes. The specific surface free energy of the ruby single crystal was experimentally obtained using contact angle of liquid droplets on the crystal surfaces, and compared with the length of normal line to the face from the center of the crystal, h_i. The proportions of the specific surface free energies to h_i's were constant for different faces of each individual ruby crystal synthesized from Mo-based flux. This result looks to satisfy the Wulff s relationship. However, the proportions were not equal for respective crystals from Mo-based flux, which is considered to result from the difference in the driving force. Specific surface free energies of (0001) faces were measured for crystals from Pb-based flux and a crystal from Mo-based flux. The specific surface free energy has linier relationship with the length of normal line to the (0001) face from the center of the crystal. Step free energy of the steps on (0001) face gives influence to the observed specific surface free energy of the face.
机译：从MoO_3，PbF_2和PbF_2-B_2O_3助熔剂合成了红宝石单晶。 Mo基助熔剂得到六方双锥体晶体。另一方面，板状晶体是由基于铅的焊剂给出的。使用液滴在晶体表面的接触角，通过实验获得了红宝石单晶的比表面自由能，并将其与从晶体中心到表面的法线长度h_i进行比较。由Mo基通量合成的每个红宝石晶体的不同表面，比表面自由能相对于h_i的比例是恒定的。这个结果看起来满足Wulff的关系。然而，对于基于Mo基通量的各个晶体，该比例不相等，这被认为是由于驱动力的差异引起的。对于来自Pb基助熔剂的晶体和来自Mo基助熔剂的晶体，测量了（0001）面的比表面自由能。比表面自由能与从晶体中心到（0001）面的法线的长度成线性关系。在（0001）面上的台阶的台阶自由能对所观察到的脸的比表面自由能产生影响。

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  • 来源
    《Journal of Crystal Growth》 |2010年第8期|p.1210-1212|共3页
  • 作者

    Takaomi Suzuki; Eiichi Iguchi; Hisashi Soga;

  • 作者单位

    Department of Environmental Science and Technology, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan;

    rnDepartment of Environmental Science and Technology, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan;

    rnDepartment of Environmental Science and Technology, Faculty of Engineering, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A1. Crystal morphology; A2. Single crystal growth; B1. Oxides;

    机译：A1。晶体形态A2。单晶生长;B1。氧化物;

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