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

DoITPoMS Micrograph Library Full Record for Micrograph 635
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Full Record for Micrograph 635

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Micrograph no
635
Brief description
Open celled aluminium foam produced by infiltration of sintered salt
Keywords
alloy Link to MATTER Glossary entry for alloy, aluminium Link to MATTER Glossary entry for aluminium, aluminium foam, 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, infiltration, metal, salt
Categories
Foam, Metal or alloy, Metal or alloy composite foam
System
Al
Composition
Not specified
Standard codes
Reaction
Processing
A precursor of sintered salt is infiltrated with molten aluminium in a press and then washed out
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
Scanning electron microscopy (SEM)
Length bar
400 μm
Further information
This is an inexpensive route for the production of open celled foams. It allows a high degree of control over cell size and shape, and results in relatively uniform morphology. The interconnectivity of pores can be controlled by varying the degree of sintering of the precursor.
Contributor
J A Curran
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