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  4. Reinforced silver chloride as a model material for the study of dislocations in metal matrix composites
 
research article

Reinforced silver chloride as a model material for the study of dislocations in metal matrix composites

Dunand, David C.
•
Mortensen, Andreas  
1991
Materials Science and Engineering A

Silver chloride containing fibers, spheres and particles of irregular form is used as a model material to study plasticity in metal matrix composites. Matrix dislocations generated upon cooling by the mismatch of coefficient of thermal expansion between the matrix and the reinforcement are observed by transmission optical microscopy after decoration at room temperature by photodissociation of the matrix. The plastic zone around the fibers, spheres and particles takes two forms: (a) trains of coaxial prismatic dislocation loops punched into the matrix and (b) a plastic zone of irregular form containing partially resolved tangled dislocations. A relationship between the inclusion volume and the volume of the plastic zone around a spherical or cylindrical inclusion in a strain-hardening matrix is presented and compared with experimental data. This relationship is extended to particles of irregular form.

  • Details
  • Metrics
Type
research article
DOI
10.1016/0921-5093(91)90224-B
Scopus ID

2-s2.0-0026232979

Author(s)
Dunand, David C.
Mortensen, Andreas  
Date Issued

1991

Published in
Materials Science and Engineering A
Volume

A144

Issue

1-2

Start page

179

Subjects

Composite Materials - Models

•

Crystallography - Mathematical Models

•

Crystals - Dislocations

•

Salts - Fiber Reinforcement

•

Reinforced Silver Chloride

•

Strain Hardening Matrix

•

Metals and Alloys

Note

Massachusetts Inst of Technology, Cambridge, United States

09215093 (ISSN)

Presented at: Innovative Inorganic Composites Symposium, part of the American Society of Metals, International Materials Week

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LMM  
Available on Infoscience
October 9, 2006
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/235055
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