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Journal ArticleDOI

Cast metal matrix composites

S. J. Harris
- 01 Mar 1988 - 
- Vol. 4, Iss: 3, pp 231-239
TLDR
In this paper, the manufacturing processes for metal matrix composites, in particular those based upon liquid metal technology, e.g., squeeze casting and spray forming, are described. And an analysis of how matrix alloy selection may influence tensile and fracture behaviour of short fibre and particle reinforced composites is attempted.
Abstract
Metal matrix composites have been available in certain forms for at least two decades, e.g. boron fibre reinforced aluminium and various dispersed phase alloys and cermets. Recently, a range of alumina and silicon carbide fibres, whiskers, and particles with diameters <20 μm have become available. The possibilities of incorporating these materials into metals to improve stiffness, wear resistance, and elevated temperature strength without incurring weight penalties have attracted the attention of design engineers in the aerospace and automobile industries. The aim of the present paper is to outline the manufacturing processes for such composites, in particular those based upon liquid metal technology, e.g. squeeze casting and spray forming. Some of the mechanical and physical properties which have been determined for these materials are described. An analysis of how matrix alloy selection may influence tensile and fracture behaviour of short fibre and particle reinforced composites is attempted.MS...

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Citations
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Journal ArticleDOI

Solidification Processing Of Metal Matrix Composites

TL;DR: In this article, the basic physics of materials processes where a reinforcing phase is combined with bulk molten metal are reviewed, with a focus on thermodynamics, mechanics, and chemistry of wetting.
Journal ArticleDOI

Cast aluminum-matrix composites for automotive applications

TL;DR: In this paper, the potential automotive applications of metal-matrix composites, particularly aluminummatrix composite composites are numerous, but there is still much work to do and many barriers to conquer before widespread application can be expected.
Journal ArticleDOI

Experimental investigation on mechanical behaviour, modelling and optimization of wear parameters of B4C and graphite reinforced aluminium hybrid composites

TL;DR: In this article, the worn surfaces of hybrid composites and base alloys were studied through SEM and EDS systems and some useful conclusions were made by using a pin-on-disc apparatus with various input parameters like applied load (10, 20, and 30 n), sliding speed (0.6, 0.8, and 1.0 n), and sliding distance (1000, 1500, and 2000 m).
Journal ArticleDOI

Microstructural and mechanical characterization of Al–MWCNT composites produced by mechanical milling

TL;DR: In this paper, a new Al-based nanocomposites reinforced with multi-walled carbon nanotubes were produced by mechanical milling, and the interface between Al matrix and the multilayer carbon-nanotubes was examined using transmission electron microscopy.
References
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Journal ArticleDOI

The Determination of the Elastic Field of an Ellipsoidal Inclusion, and Related Problems

TL;DR: In this paper, it is shown that to answer several questions of physical or engineering interest, it is necessary to know only the relatively simple elastic field inside the ellipsoid.
Journal ArticleDOI

Analysis of stress-strain, fracture, and ductility behavior of aluminum matrix composites containing discontinuous silicon carbide reinforcement

TL;DR: In this paper, the elastic modulus of aluminum matrix composites was found to be isotropic to be independent of type of reinforcement, and to be controlled solely by the volume percentage of SiC reinforcement present.
Journal ArticleDOI

The elastic modulus of aluminium-lithium alloys

TL;DR: In this paper, the Young's modulus of the Al3 Li and AlLi intermetallic phases are estimated to be 96 GPa and 105 GPa respectively, the major contribution to this increased modulus arises from lithium in solid solution.
Journal ArticleDOI

The interface region in squeeze-infiltrated composites containing δ-alumina fibre in an aluminium matrix

TL;DR: In this paper, the authors examined the nature of interfaces formed between fine, δ-alumina fibres and aluminium-based matrices and concluded that any distinct chemical reaction product formed at the interface between fibre and matrix must be limited in extent to the atomic monolayer level.
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