Crystal Growth and Design of Sapphire: Experimental and Calculation Studies of Anisotropic Crystal Growth upon Pulling Directions
文献类型：期刊论文
| 作者 | Sun, Congting ; Xue, Dongfeng |
| 刊名 | crystal growth & design
 |
| 出版日期 | 2014 |
| 卷号 | 14期号:5页码:2282-2287 |
| 关键词 | CZOCHRALSKI MORPHOLOGY MECHANISM EVOLUTION ZNO |
| 通讯作者 | xue,df |
| 英文摘要 | the anisotropic growth of large-size sapphire single crystals along different pulling directions was studied on the basis of the chemical bonding theory of single crystal growth and practical czochralski growth. the projection of thermodynamic morphology of sapphire single crystal respectively along [210], [110], [001], and [001] rotated 57.62 degrees directions can be used to confirm the growth directions of surfaces that are preferred to be exposed thermodynamically in czochralslci growth. starting from these thermodynamically preferred directions, the possible radial directions that are normal to the four typical pulling directions by kinetic controls have been identified by anisotropic chemical bonding distributions of sapphire single crystal. chemical bonding calculations demonstrate that the lower pulling rate should be designed when r-axial/r-radial > 1, whereas the higher pulling rate should be designed when r-axial/r-radial < 1. the anisotropic chemical bonding conditions demonstrate the lowest chemical bonding density along the radial directions of sapphire single crystal when it grows along the [001] pulling direction. taking [001] as the pulling direction in practical growth, a phi 2" sapphire single crystal was grown via the czochralski method with a growth rate of 2-3 mm/h. our present work shows the effect of anisotropy on the czochralski growth of large-size single crystals, which can provide a theoretical guide in practical growth from both thermodynamic and kinetic viewpoints. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-10-27 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/56181]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Sun, Congting,Xue, Dongfeng. Crystal Growth and Design of Sapphire: Experimental and Calculation Studies of Anisotropic Crystal Growth upon Pulling Directions[J]. crystal growth & design,2014,14(5):2282-2287. |
| APA | Sun, Congting,&Xue, Dongfeng.(2014).Crystal Growth and Design of Sapphire: Experimental and Calculation Studies of Anisotropic Crystal Growth upon Pulling Directions.crystal growth & design,14(5),2282-2287. |
| MLA | Sun, Congting,et al."Crystal Growth and Design of Sapphire: Experimental and Calculation Studies of Anisotropic Crystal Growth upon Pulling Directions".crystal growth & design 14.5(2014):2282-2287. |
入库方式： OAI收割
来源：长春应用化学研究所
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