A new miniaturised electrothermomechanical test system has been used to study the thermal cycling response of a number of aluminium alloy metal matrix composites reinforced with either Al203 or SiC particles. Tests were also performed on a monolithic 2618 aluminium alloy for comparison. The system showed good test discrimination between the different materials for both constant load-constant temperature (creep) tests and constant load-temperature cycling (50–200°C) tests. The system was also used to compare the yield behaviour at 200°C, and the thermal expansion and thermal diffusivity of several of the materials.
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References
1.
CLYNET. W. and WITTERSP. J.‘An introduction to metal matrix composites’, 1993, Cambridge, Cambridge University Press.
2.
DAYMONDM. R. and WITTERSP. J.Ser. Mater., 1996, 35, 717–720.
3.
ZONGB. Y. and DERBYB.: Acta Mater., 1997, 45, 41–49.
4.
LIUP. I., WANGZ. G., TODAH., and KOBAYASHIT.: Scr. Mater., 1997,36, 807–812.
5.
WANGL., SUNZ. M., and KOBAYASHIT.: Scr. Mater., 1996, 35, 973–978.
6.
ROEBUCKB. and GEEM. G.:Mater. Sci. Eng. A,1996, A209,358–365.
7.
PITCHERP. and SHAICESHEFTA. J.: Personal communication, DERA, Farnborough, UK, 1997.
