Journal ArticleDOI
Particle distribution control in cast aluminium alloy-mica composites
TLDR
In this article, a suspension of mica particles (40μm diameter and 3.7μ thick) obtained in a mechanically stirred Al-4 wt % Cu-1.5wt % Mg melt was poured and solidified in a variety of moulds under different heat flow configurations.Abstract:
A suspension of mica particles (40μm diameter and 3.7μ thick) obtained in a mechanically stirred Al-4 wt % Cu-1.5 wt % Mg melt was poured and solidified in a variety of moulds under different heat flow configurations. The resulting cast structure showed a non-uniform distribution of dispersed mica particles with mica-depleted and segregated zones due to their flotation before and during solidification. The experimentally observed profiles of mica-free regions deviate significantly from those computed on the basis of Stokes's law and freezing-time computations. In relatively thick castings, segregation of mica could be minimized by using low pouring temperatures and/or side as well as bottom chilling. It was found, however, that thin castings (12.5 mm) could easily be produced with a homogeneous distribution of mica particles.read more
Citations
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Processing and properties of metal matrix composites containing discontinuous reinforcement
M.G. McKimpson,T.E. Scott +1 more
TL;DR: In this article, the authors summarize the scope of operations for both cast-and powder-based processing and identify processing issues which cause matrix-reinforcement interface and property variability in discontinuous metal matrix composites.
Journal ArticleDOI
Reinforced cast metals: Part I Solidification microstructure
TL;DR: In this paper, the authors examined the roles of the above factors in the evolution of solidification microstructure in composites under controlled growth as well as under normal casting conditions.
Journal ArticleDOI
Effect of Glass and SiC in Aluminum matrix on workability and strain hardening behavior of powder metallurgy hybrid composites
TL;DR: In this article, a powder metallurgy (P/M) method with a combination of two reinforcements, namely, Glass and Silicon carbide particles, was used for compaction of reinforced Glass-SiC Aluminum hybrid composites.
Board of Editorial Advisors
Muhammmad Khan,Senra Academic Publishers,Errol Hassan,Paul Ch Li,Jasen Nelson,Sara Ali,Ben H. H. Shieh,Alvin Louie,Richard Callaghan,Matthew Cooper,Anatoly S Borisov,Environment Consultants,Michael J Dreslik,David Feder,Geoffrey J Hay,Moshe Inbar,Bor-Luh Lin,Guangdong Coastal,Collen Kelly,Eric L Peters,Roustam Latypov,SR Nasyrov,A Nicholson,Gordon McGregor Reid,Pratim K Chattaraj,C Visvanathan,Kumlesh K Dev,Shakeel A Khan,Maria V Kalevitch,Xing Jin,Leszek Czuchajowski,Basem S Attili,David K Chiu,Andrew V Sills,Charles S. Wong +34 more
TL;DR: In this paper, Atwood et al. presented a survey of the top 100 universities in the US, including the following: Prof. David E. Allan Prof. Robert E. Lutz II Melbourne, Australia Los Angeles, California James R. Atwood Paul McCarthy Washington, D.C.
Journal ArticleDOI
Mechanical properties and 95 ° aging characteristics of zircon-reinforced Zn-4AI-3Cu alloy
B.J. Li,C. G. Chao +1 more
TL;DR: In this article, a process for preparing zinc alloy castings containing dispersions of zircon particles is described, and the aging characteristics of the ZAS alloy have also been investigated by hardness tests.
References
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Journal ArticleDOI
Heat diffusivity criterion for the entrapment of particles by a moving solid-liquid interface
M.K. Surappa,Pradeep K. Rohatgi +1 more
Journal ArticleDOI
Preparation of cast aluminium alloy-mica particle composites
Deonath,R. T. Bhat,P. K. Rohatgi +2 more
TL;DR: In this article, the optimum conditions for producing cast aluminium alloy-mica particle composites, by stirring mica particles (40 to 120 μm) in molten aluminium alloys (above their liquidus temperatures), followed by casting in permanent moulds, are described.
Journal ArticleDOI
Wear characteristics and bearing performance of aluminium-mica particulate composite material
Deo Nath,S.K. Biswas,PK Rohatgi +2 more
TL;DR: In this paper, the effect of mica dispersion on the wear rate and journal bearing performance of a mica-dispersed Al-4%Cu-1.5%Mg alloy was studied under different pressures and under different interface friction conditions.
Journal ArticleDOI
Analytical technique for the determination of solidification rates during the inward freezing of cylinders
R.G. Santos,Amauri Garcia +1 more
TL;DR: In this paper, an analytical/experimental approach which permits the determination of solidification rates during the inward solidification of cylinders is proposed, based on a previous analytical solution that treats the generalized problem of slabs.
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