Crystal growth of quasicrystal and partial phase diagram involving quasicrystal in the Ag–In–Yb system
Crystal growth of quasicrystal and partial phase diagram involving quasicrystal in the Ag–In–Yb system
复制标题
Ag-In-Yb 体系中准晶的晶体生长和涉及准晶的部分相图
DOI：
10.1080/14786430701365009
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发表时间：
2007
影响因子：
1.6
通讯作者：
A. Tsai
中科院分区：
文献类型：
--
作者：
S. Ohhashi;J. Hasegawa;S. Takeuchi;A. Tsai
部分 Ag-In-Yb 相图的等温截面，包括二十面体准晶 (i-QC) 相及其相应的 823 K 的 2/1 和 1/1 近似相 (AP)，已确定。 i-QC、2/1 和 1/1 AP 分别存在于 Ag42In42Yb16、Ag41In44Yb15 和 Ag40In46Yb14 周围的组成区域中。与Cd-Yb体系类似，本体系中的i-QC在890 K左右的熔体中全等形成。根据相图，利用布里奇曼方法获得了直径为10 mm的大单晶i-QC。
An isothermal section of the partial Ag–In–Yb phase diagram, involving the icosahedral quasicrystalline (i-QC) phase and its corresponding 2/1 and 1/1 approximants (AP) at 823 K, has been determined. The i-QC, 2/1 and 1/1 AP exist in the compositional region around Ag42In42Yb16, Ag41In44Yb15 and Ag40In46Yb14, respectively. In a way similar to the Cd–Yb system, the i-QC in the present system forms congruently from the melt at around 890 K. On the basis of the phase diagram, a large single grain of i-QC with a diameter of 10 mm was obtained by using the Bridgman method.