FFECT OF SIC PARTICLES ON THE COEFFICIENT OF THERMAL EXPANSION OF AL 6061 METAL MATRIX COMPOSITE
Keywords:
CTE, MMCAbstract
Aluminium metal matrix composite ( Al – MMC ) finds extensive application in the field of electrical contacts, rocket nozzles, bearings and pistons. The coefficient of thermal expansion of this alloy with various percentage of SiC particles has not been studied in details. An investigation has been made for the change in coefficient of thermal expansion (C T E ) of SiC reinforced Al 6061 metal matrix composite. The composite were prepared by the liquid metallurgy technique with varying percentages of SiC in steps of 10,20 and 30% by weight. This paper tries to bring the relationship between CTE and the temperature. An attempt has been made to study the CTE behavior of Al 6061-SiCp in the temperature range of 500 C to 5000 C. The results shows the CTE significantly increased with increasing temperature.
Downloads
References
Manoj K.Jain Velidandla V Bhanuprakash. nternational Journal of Powder Metl,1993 vol 29(3) p 267.
Deonath,R Narayan and P K Rohatgi. Journal of Material Science.1981 vol 16, p 1025
Z R Xu,KK Chula.R Mistra Scripta Metal 1994 vol 31,(11) p 1925
S Elomari,R Boukhili and D J Lyod: Acta Mater., 1996 vol 44, p29
John E Allison and Gerald S Cole, Journal of Material,1993 vol 45 p29.
M S Zadalis,P S Gilman and S K Das: High performance composites.TMS Warrendale PA, p 61.
R R Tummala and A L Friedberg: Journal of Apples Physics., 1970 vol 41 p 5104.
D J Lyod , Acta Metall.Mater 1992 vol 39 p 59
S Elomari, M D Skibo, A Sundarjan and D Richards: Comp Sci 1998 vol 58 p 369.
P S Tuner ,J Res ,NBS 1946 vol 37 p 236.
S A Schapery: j Comp Matl , 1968 vol 2 p 236
E H Kerner Proc, Phy Sac, 1956 vol 69 p 808
S C Sharma, Metallurgical and Material Transaction A,vol 31A-773.March,2000
