DIFFRACTION CONTRAST OF QUASI-CRYSTALLINE DISLOCATIONS IN THE TRANSMISSION ELECTRON-MICROSCOPE

被引：45

作者：

WOLLGARTEN, M ^{[1
]}

ZHANG, Z ^{[1
]}

URBAN, K ^{[1
]}

机构：

[1] CHINESE ACAD SCI,BEIJING LAB ELECTRON MICROSCOPY,BEIJING,PEOPLES R CHINA

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1992年 / 65卷 / 01期

关键词：

D O I：

10.1080/09500839208215141

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The contrast of dislocations in icosahedral Al62Cu25.5Fe12.5 was investigated in the transmission electron microscope. It was found that the contrast vanishes under two basically different diffraction conditions. This is different from the behaviour in normal crystals and is due to the special structural features of dislocations in quasiperiodic lattices. Quantitative evaluation of the results indicates that the phason component of the dislocation strain field is substantially stronger than the phonon component.

引用

页码：1 / 6

页数：6

共 11 条

[1] ICOSAHEDRAL CRYSTALS FROM CUTS IN 6-DIMENSIONAL SPACE [J].

BAK, P .

SCRIPTA METALLURGICA, 1986, 20 (09) :1199-1204

[2] Indexing of icosahedral quasiperiodic crystals [J].

Cahn, John W. ;

Shechtman, Dan ;

Gratias, Denis .

JOURNAL OF MATERIALS RESEARCH, 1986, 1 (01) :13-26

[3]

DEVAUDRZEPSKY J, 1989, QUASICRYSTALS INCOMM, P498

[4] THE BODY-CENTERED-CUBIC-TYPE ICOSAHEDRAL RECIPROCAL LATTICE OF THE AL-CU-FE QUASI-PERIODIC CRYSTAL [J].

EBALARD, S ;

SPAEPEN, F .

JOURNAL OF MATERIALS RESEARCH, 1989, 4 (01) :39-43

[5] A KINEMATICAL THEORY OF DIFFRACTION CONTRAST OF ELECTRON TRANSMISSION MICROSCOPE IMAGES OF DISLOCATIONS AND OTHER DEFECTS [J].

HIRSCH, PB ;

HOWIE, A ;

WHELAN, MJ .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1960, 252 (1017) :499-&

[6]

KLEMAN M, 1988, QUASICRYSTALLINE MAT, P318

[7] ELASTICITY AND DISLOCATIONS IN PENTAGONAL AND ICOSAHEDRAL QUASICRYSTALS [J].

LEVINE, D ;

LUBENSKY, TC ;

OSTLUND, S ;

RAMASWAMY, S ;

STEINHARDT, PJ ;

TONER, J .

PHYSICAL REVIEW LETTERS, 1985, 54 (14) :1520-1523

[8] PHONONS, PHASONS, AND DISLOCATIONS IN QUASI-CRYSTALS [J].

SOCOLAR, JES ;

LUBENSKY, TC ;

STEINHARDT, PJ .

PHYSICAL REVIEW B, 1986, 34 (05) :3345-3360

[9]

WOLLGARTEN M, 1991, PHILOS MAG A, V63, P819

[10] ANALYSIS OF DISLOCATIONS IN ICOSAHEDRAL AL-CU-FE ALLOY BY TRANSMISSION ELECTRON-MICROSCOPY [J].

ZHANG, Z ;

WOLLGARTEN, M ;

URBAN, K .

PHILOSOPHICAL MAGAZINE LETTERS, 1990, 61 (03) :125-131

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