TEM study of crystalline microtwins and icosahedral quasicrystals coexisting in Al62Cu25.5Fe12.5 alloy

被引：2

作者：

Yang, XX ^{[1
]}

Wang, RH ^{[1
]}

Takahashi, H ^{[1
]}

Ohnuki, S ^{[1
]}

机构：

[1] HOKKAIDO UNIV,FAC ENGN,MET RES INST,SAPPORO,HOKKAIDO 060,JAPAN

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1995年 / 152卷 / 02期

关键词：

D O I：

10.1002/pssa.2211520203

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The relationship between the Al6.2Cu25.5Fe12.5 icosahedral quasicrystal (IQC) and microtwins of the B2-type phase is studied by means of transmission electron microscopy as well as computer calculation. After irradiation at room temperature with 1 MeV electrons and 120 kV Ar ions to a certain dose under a higher dose rate, each grain of the IQC transforms into the B2-type structure with a morphology exhibiting microtwins icosahedrally related to each other and the lattice parameter a of the B2-type structure is about 0.29 nm. The calculated electron diffraction patterns agree well with the experimental ones.

引用

页码：341 / 353

页数：13