Preparation of decagonal Al-Ni-Co single quasicrystal by Czochralski method

被引：45

作者：

Yokoyama, Y ^{[1
]}

Note, R

Kimura, S

Inoue, A

Fukaura, K

Sunada, H

机构：

[1] Himeji Inst Technol, Fac Engn, Himeji, Hyogo 67122, Japan

[2] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 98077, Japan

来源：

MATERIALS TRANSACTIONS JIM | 1997年 / 38卷 / 11期

关键词：

single decagonal quasicrystal; aluminum-nickel-cobalt alloy system; phase diagram; isothermal section; Czochralski method;

D O I：

10.2320/matertrans1989.38.943

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We constructed a partial isothermal phase diagram including a decagonal (d-) phase in the Al-Ni-Co system and determined the composition of the liquid in equilibrium with the stoichiometric d-phase. The d-phase is formed through a peritectic reaction between the B2 phase and the liquid phase. A seed d-phase prepared by selecting an optimum composition of the liquid phase was used for growing a large-scale d-quasicrystal by the Czochralski method. As a result, we have product a single decagonal quasicrystal with the size of 60 mm in length and 1 to 7 mm in diameter and the mean composition of Al72.2Ni12.1Co15.7.

引用

页码：943 / 949

页数：7

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