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Full Record for Micrograph 606
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- Micrograph no
- 606
- Brief description
- Extruded Saffil-containing metal matrix composite
- Keywords
- alignment, composite material
, extrusion , MMC, particle, reinforcement , Saffil - Categories
- Composite
- 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
- The sample has been oxidised to provide colour contrast for different grain orientations.
- Technique
- Reflected light microscopy, polarised
- Length bar
- 40 μm
- Further information
- Commercial purity aluminium has atomised, mixed with short, 3 micron 'Saffil' alumina fibres, ball milled, tumbled, cold compacted (20MPa) and then extruded. The fibres are well distributed and generally lie parallel to the extrusion direction (horizontal).
- 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