HRTEM STUDY OF MILLING INDUCED PHASE-TRANSITION AND QUASI-CRYSTALLINE FORMATION IN MG32(AL, ZN)49 CUBIC FRANK-KASPER PHASE

被引：16

作者：

BOKHONOV, B

KONSTANCHUK, I

BOLDYREV, V

IVANOV, E

机构：

[1] TOSOH,SMD,3515 GROVE CITY RD,GROVE CITY,OH 43123

[2] INST SOLID STATE CHEM,NOVOSIBIRSK 630091,RUSSIA

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1993年 / 153卷

关键词：

D O I：

10.1016/0022-3093(93)90424-V

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Deformation induced transformation of the Frank-Kasper cubic Mg32(Al, Zn)49 phase into a quasicrystalline phase was studied with high resolution transmission electron microscopy with lattice resolution. In the early stage of deformation the icosahedral phase topotactically nucleates due to the appearance of rotational defects and lattice plane disordering; the 3-fold axis of the icosahedral phase is parallel to the [443BAR] zone axis of the cubic phase. In the latter stage icosahedral nuclei grow in a manner similar to that in topochemical solid state reactions.

引用

页码：606 / 610

页数：5

共 22 条

[1]

BOLDYREV VV, 1979, CONTROL REACTIVITY S

[2] PREPARATION OF ALUMINUM BASED ICOSAHEDRAL THIN-FILMS BY HIGH-TEMPERATURE VAPOR-DEPOSITION [J].