TRIPLE JUNCTIONS AT THE MESOSCOPIC, MICROSCOPIC AND NANOSCOPIC SCALES

被引：14

作者：

PRIESTER, L

YU, DP

机构：

[1] Laboratoire de Métallurgie Structurale, U.A. CNRS 1107, Université Paris Sud

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1994年 / 188卷 / 1-2期

关键词：

D O I：

10.1016/0921-5093(94)90362-X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The triple junction character distribution in a very pure nickel polycrystal is established by electron channelling patterns on the basis of the grain boundary coincidence concept. A ''special'' triple junction constituted by three near coincidence grain boundaries is thoroughly investigated by transmission electron microscopy, and its geometrical configuration is analysed in terms of the Herring condition for equilibrium. Then, the crystallographic arrangement at the triple junction is emphasized by high resolution electron microscopy and discussed in accordance with Bollmann's criteria for a nodal balance of adjoining grain boundary dislocation networks.

引用

页码：113 / 119

页数：7

共 28 条

[1] SYMMETRY PROPERTIES OF GRAIN-BOUNDARY JUNCTIONS [J].

BLERIS, GL ;

KARAKOSTAS, T .

ACTA CRYSTALLOGRAPHICA SECTION A, 1989, 45 :297-303

[2] TRIPLE-LINE DISCLINATIONS IN POLYCRYSTALLINE MATERIAL [J].

BOLLMANN, W .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 113 :129-138

[3] TRIPLE LINES IN POLYCRYSTALLINE AGGREGATES AS DISCLINATIONS [J].

BOLLMANN, W .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1984, 49 (01) :73-79

[4] TRIPLE-LINE DISCLINATIONS REPRESENTATIONS, CONTINUITY AND REACTIONS [J].

BOLLMANN, W .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1988, 57 (04) :637-649

[5]

BOLLMANN W, 1991, MAT SCI ENG A-STRUCT, V137, P1

[6]

Bollmann W., 1970, CRYSTAL DEFECTS CRYS

[7]

Bollmann W.X., 1982, CRYSTAL LATTICES INT

[8] GRAIN-BOUNDARY PLANE AND INTERGRANULAR SEGREGATION IN NICKEL-SULFUR SYSTEM [J].

BOUCHET, D ;

PRIESTER, L .

SCRIPTA METALLURGICA, 1987, 21 (04) :475-478

[9] A HREM STUDY OF A NEARLY PERFECT SIGMA = 11 TILT BICRYSTAL IN NICKEL [J].

BOUCHET, D ;

THIBAULT, J .

MICROSCOPY MICROANALYSIS MICROSTRUCTURES, 1992, 3 (01) :1-13

[10]

BOUCHET D, 1988, J PHYS, V49, P17

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