Dissemination of IT for the Promotion of Materials Science (DoITPoMS)

DoITPoMS Micrograph Library Full Record for Micrograph 607
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Full Record for Micrograph 607

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Micrograph no
607
Brief description
Fibre fracture in a metal matrix composite
Keywords
alloy Link to MATTER Glossary entry for alloy, alumina Link to MATTER Glossary entry for alumina, composite material Link to MATTER Glossary entry for composite material, fibre Link to MATTER Glossary entry for fibre, fracture Link to MATTER Glossary entry for fracture, infiltration, metal, MMC, preform, reinforcement Link to MATTER Glossary entry for reinforcement
Categories
Fracture, Metal or alloy
System
Al
Composition
Commercial purity (99.5%)
Standard codes
Reaction
N/A
Processing
Commercial purity (99.5%) aluminium has been atomised, thoroughly mixed with alumina reinforcement fibres and then extruded.
Applications
Metal matrix composites (MMCs) offer high specific stiffness which can be retained to high temperatures. This makes them suitable for applications in the aerospace industry. They also offer controlled (or zero) thermal expansion coefficients, good wear resistance and good impact properties.
Sample preparation
Technique
Scanning electron microscopy (SEM)
Length bar
4 μm
Further information
Fracture in one fibre has promoted fracture in the adjacent fibres.
Contributor
Prof T W Clyne
Organisation
Department of Materials Science and Metallurgy, University of Cambridge
Date
03/10/02
Licence for re-use
Attribution-NonCommercial-ShareAlike 4.0 International