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A study of the manufacturing method and related mechanical properties of SiC reinforced aluminum Wiskel, J. Barry
Abstract
A study involving manufacturing and tensile testing was conducted to elucidate the mechanical properties of a SiC fibre reinforced aluminum. Areas analyzed included production methods, failure mechanisms, tensile behaviour and interfacial bonding. A well dispersed fibre distribution in the as cast composite was difficult to obtain. This arises from the high degree of intermingling of fibres in the as-received tows. The poor distribution can lead to incomplete fibre utilization and increase composite susceptibility to delamination damage. The strength of the composites tested were below that expected from a rule of mixtures (ROM) value. Fibre damage incurred during manufacturing and by the formation of aluminum carbide on the fibre surface are possible causes for this anomaly. Also, fibre/(matrix plastic deformation) interaction can lead to premature composite failure especially at the low volume fractions of fibres being analyzed. On a microscopic level good bonding between the fibre and matrix was observed. This adhesion was attributed to the formation of aluminum carbide at the fibre/matrix interface. Synergistic strengthening of the matrix was observed for several tensile samples. This phenomena may be attributed to fibre distribution altering the aluminum matrix deformation behaviour.
Item Metadata
Title |
A study of the manufacturing method and related mechanical properties of SiC reinforced aluminum
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1986
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Description |
A study involving manufacturing and tensile testing was conducted to elucidate the mechanical properties of a SiC fibre reinforced aluminum. Areas analyzed included production methods, failure mechanisms, tensile behaviour and interfacial bonding.
A well dispersed fibre distribution in the as cast composite was difficult to obtain. This arises from the high degree of intermingling of fibres in the as-received tows. The poor distribution can lead to incomplete fibre utilization and increase composite susceptibility to delamination damage.
The strength of the composites tested were below that expected from a rule of mixtures (ROM) value. Fibre damage incurred during manufacturing and by the formation of aluminum carbide on the fibre surface are possible causes for this anomaly. Also, fibre/(matrix plastic deformation) interaction can lead to premature composite failure especially at the low volume fractions of fibres being analyzed.
On a microscopic level good bonding between the fibre and matrix was observed. This adhesion was attributed to the formation of aluminum carbide at the fibre/matrix interface.
Synergistic strengthening of the matrix was observed for several tensile samples. This phenomena may be attributed to fibre distribution altering the aluminum matrix deformation behaviour.
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Genre | |
Type | |
Language |
eng
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Date Available |
2010-07-12
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0078554
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
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Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.