Optimization of mixing parameters through a water model for metal matrix composites synthesis

Ravi, K.R., Sreekumar, V. M., Pillai, R.M., Mahato, C., Amaranathan, K.R., Arul kumar, R. and Pai, B.C. 2007, Optimization of mixing parameters through a water model for metal matrix composites synthesis, Materials and design, vol. 28, no. 3, pp. 871-881, doi: 10.1016/j.matdes.2005.10.007.

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Title Optimization of mixing parameters through a water model for metal matrix composites synthesis
Author(s) Ravi, K.R.
Sreekumar, V. M.
Pillai, R.M.
Mahato, C.
Amaranathan, K.R.
Arul kumar, R.
Pai, B.C.
Journal name Materials and design
Volume number 28
Issue number 3
Start page 871
End page 881
Publisher Elsevier
Place of publication Kidlington, England
Publication date 2007
ISSN 0264-1275
Keyword(s) metal matrix composites
particle distribution
stir casting
Summary The influence of the mixing parameters on the synthesis of Al–SiCp reinforced metal matrix composites (MMCs) by the stir casting technique is investigated through a water model. The effects of some important mixing parameters such as impeller blade angle, rotating speed, direction of impeller rotation and effect of baffles are investigated and optimized. The results have shown that the axial concentration variation of natural graphite during stirring in the presence of four vertical baffles is 1.0 wt% against in the absence of baffles it is increased to 2.3 wt%. The variations observed in natural graphite concentration in water during mixing are in close agreement with the earlier modeling and limited experimental studies reported on the real molten aluminum–SiC system. Semi-empirical correlations arrived at between the dimensionless numbers for stirred water – natural graphite slurries are Po = Re−0.0545 Fr−1.099 and Po = Re−0.0219 Fr−1.0382 for clockwise and counter clockwise rotation respectively.
Language eng
DOI 10.1016/j.matdes.2005.10.007
Field of Research 091202 Composite and Hybrid Materials
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2005, Elsevier BV
Persistent URL http://hdl.handle.net/10536/DRO/DU:30028204

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