In Situ Synthesis and Properties of Aluminum Composites with Ultrafine TiB2 and Al2O3 Particulates
In this paper, we describe our recent work on metal matrix composites (MMCs) with submicron-size TiB2 and Al2O3 particulates that are synthesized in situ from Al-rich Al-Ti-B and Al-TiO2- B powder reactants by reactive sintering. Reaction sequences examined in the two different reactant systems are summarized, and some experimental results on elevated-temperature properties, i.e. thermal expansion, temperature dependence of dynamic tensile modulus and creep behavior, are shown and discussed from micromechanics-based viewpoints.
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
K. Wakashima et al., "In Situ Synthesis and Properties of Aluminum Composites with Ultrafine TiB2 and Al2O3 Particulates", Materials Science Forum, Vols. 475-479, pp. 925-928, 2005