Solid-liquid interface in the growth of a decagonal Al-72 Co-16 Ni-12 quasicrystal

被引：12

作者：

Guo, JQ ^{[1
]}

Sato, TJ ^{[1
]}

Hirano, T ^{[1
]}

Tsai, AP ^{[1
]}

机构：

[1] Natl Res Inst Met, Tsukuba, Ibaraki 305, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 1999年 / 197卷 / 04期

关键词：

crystal growth; single quasicrystal; solute redistribution; decagonal quasicrystal;

D O I：

10.1016/S0022-0248(98)01165-8

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

To understand growth mechanism of a decagonal Al-72 Co-16 Ni-12 single quasicrystal, solid-liquid interface during crystal growth was investigated. When a single quasicrystal was grown at a growth rate of 0.5 mm/h, the solid-liquid interface is flat. At steady growth state it was found that Al is enriched, while Co and Ni are depleted in front of the interface. Solute partition ratios of Al, Co and Ni were determined to be about 0.91, 1.57 and 1.08, respectively. The change of the solute partition ratio and redistribution process during the crystal growth has been discussed. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：963 / 966

页数：4