A novel preparation technique for an aluminium-alumina MMC by a roll bonding process
- Hong Kong Polytechnic, Kowloon (Hong Kong). Dept. of Manufacturing Engineering
- Brunel Univ., Uxbridge, Middlesex (United Kingdom). Dept. of Materials Technology
- Hong Kong Polytechnic, Kowloon (Hong Kong). Dept. of Manufacturing Engineering Brunel Univ., Uxbridge, Middlesex (United Kingdom). Dept. of Materials Technology
The potential of fibre reinforced metal matrix composites (MMC) has been known for many years and their common fabrication routes and the general characteristics of their properties are well documented. These manufacturing routes are usually expensive and consistent results are difficult to maintain. This paper introduces an economical process for the preparation of an aluminum matrix MMC reinforced with alumina (Al[sub 2]O[sub 3]). The process involves the formation of thin Al[sub 2]O[sub 3] films on commercially pure (CP) aluminium foil by anodizing. The bonding between layers of foil and Al[sub 2]O[sub 3] is achieved by hot rolling followed by cold rolling to further break up of the thin Al[sub 2]O[sub 3] film and disperse it into the aluminium matrix. The aim was to produce an MMC with a low volume fraction of Al[sub 2]O[sub 3] finely dispersed in the aluminium matrix. The physical and mechanical properties of this material may not be comparable with MMCs produced by conventional techniques in terms of strength and stiffness. However, its inexpensive production route coupled with an increase Young's Modulus, strength and retained good electrical conductivity may well make it a valuable alternative material to be used in electricity transmission applications. The production technique used in making this MMC can readily be adopted by any aluminium sheet rolling plant. With minimal need for equipment alterations, they can convert to produce this form of MMC in semi or fully continuous production runs with their existing rolling mills. This process will greatly reduce the cost of an MMC and at the same time maintain consistent properties.
- OSTI ID:
- 6469397
- Journal Information:
- Scripta Metallurgica et Materialia; (United States), Vol. 29:5; ISSN 0956-716X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM ALLOYS
FABRICATION
ALUMINIUM OXIDES
COMPOSITE MATERIALS
BONDING
COST
EXPERIMENTAL DATA
FIBERS
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
REINFORCED MATERIALS
ROLLING
ALLOYS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
DATA
INFORMATION
JOINING
MATERIALS
MATERIALS WORKING
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
360601* - Other Materials- Preparation & Manufacture