Spray Atomized and Codeposited Al-Li Based Metal-matrix Composites Processing and Properties

J Mater Sci Technol ›› 1995, Vol. 11 ›› Issue (5): 329-339.

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Spray Atomized and Codeposited Al-Li Based Metal-matrix Composites Processing and Properties

Received:1995-09-28 Revised:1995-09-28 Online:1995-09-28 Published:2009-10-10

Abstract

Abstract: In spray atomization and codeposition, a molten stream of metal is disintegrated into a fine dispersion of droplets by high velocity gas jets. The resulting semi-solidified droplets are directed towards a substrate where they impact and collect as rapidly solidified splats. Relatively high rates of solidification are achieved as a result of the thinness of the splats and the rapid heat extraction during flight and upon impacting with the substrate. The processing method uses codeposition of the metallic semi-solidified droplets (metallic matrix) with the injected reinforcement ceramic particles. In the present paper, the microstructures, mechanical properties, interfacial properties, thermal stability and aging behaviour of spray atomized and codeposited Al-Li-X MMC's (injected X=SiC, Al2O3) are reported and correlated to the processing conditions.

E. Raskin; S. Nayim;M.Polak and J.Baram(Materials Engineering Dept., Ben-Gurion University of the Negev, Beer-Sheva, Israel )A.N.Sembira(Nuclear Research Center, Negev, Beer-Sheva, Israel)(To whom correspondence should be addressed). Spray Atomized and Codeposited Al-Li Based Metal-matrix Composites Processing and Properties[J]. J Mater Sci Technol, 1995, 11(5): 329-339.

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Spray Atomized and Codeposited Al-Li Based Metal-matrix Composites Processing and Properties

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