DoITPoMS

Full Record for Micrograph 632

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Micrograph no
632
Brief description
Open-celled aluminium foam
Keywords
alloy Link to MATTER Glossary entry for alloy, aluminium Link to MATTER Glossary entry for aluminium, aluminium foam, casting, cell Link to MATTER Glossary entry for cell, composite foam, composite material Link to MATTER Glossary entry for composite material, foam Link to MATTER Glossary entry for foam, investment, metal
Categories
Foam, Metal or alloy, Metal or alloy composite foam
System
Al
Composition
Not specified
Standard codes
Reaction
Processing
Two-stage investment casting involves a polymer foam precursor, used to shape a mould of refractory material into which Al can be cast
Applications
Open cell aluminium foams may be useful as surfaces for catalysts or electrochemical applications. They are also used in heat exchangers.
Sample preparation
Technique
Photography (no microscope)
Length bar
8 mm
Further information
Although the processing route is complicated and the product expensive, there is a high degree of control over the cell structure of such foams and the final shape can be controlled to meet near-net-shape requirements.
Contributor
Dr A E Markaki
Organisation
Department of Materials Science and Metallurgy, University of Cambridge
Date
03/10/02
Licence for re-use
Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales