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Crystal Growth Conditions of Types I and II Na–Si Clathrates by Evaporation of Na from a Na–Si–Sn Solution

机译:通过从Na-Si-Sn溶液中蒸发Na和II型Na-Si Clathrates的晶体生长条件

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摘要

Single crystals of the type I clathrate Na8Si46 were synthesized by the evaporation of Na from a Na–Si–Sn solution (Na:Si:Sn = 6:2:1 molar ratio) at 723–873 K under an Ar atmosphere of 105 Pa. In the mixture of type I and type II clathrates prepared by heating at 773 K for 72 h, type I single crystals with sizes of up to 5 mm were found. A single phase of single crystals of the Na24Si136 type-II clathrate having a {111} crystal facet of about 2 mm on one side was obtained by heating at 873 K for 9 h.]]>
机译:<![cdata [ src ='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/cgdefu/2018/cgdefu.2018.18.issue-1/acs.cgd.7b01342/ 20171227 /图像/介质/ CG-2017-013422_0005.gif“> I型Clathrate Na 8 Si 46 的单晶被Na从Na蒸发合成 -Si-Sn溶液(Na:Si:Sn = 6:2:1摩尔比)在10 5 pa的AR气氛下在723-873k。在I型和II型的混合物中 通过在773 k下加热制备的Clathrates 72小时,发现I型单个晶体,尺寸可达5毫米。 通过在873处加热获得,在一侧的Na 24 / si和Si 136 型II族曲线的单个晶片的单相,具有约2mm的{111}晶章。 k为9小时]]]>

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  • 来源
    《Crystal growth & design》 |2018年第1期|共5页
  • 作者单位

    Institute for Materials Research and Institute of Multidisciplinary Research for Advanced Materials Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan;

    Institute for Materials Research and Institute of Multidisciplinary Research for Advanced Materials Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan;

    Institute for Materials Research and Institute of Multidisciplinary Research for Advanced Materials Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan;

    Institute for Materials Research and Institute of Multidisciplinary Research for Advanced Materials Tohoku University 2-1-1 Katahira Aoba-ku Sendai 980-8577 Japan;

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

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