In Situ Synthesis and Properties of Aluminum Composites with Ultrafine TiB2 and Al2O3 Particulates

Kenji Wakashima; T. Shimoyamada; H. Noma; Tomonari Inamura; Hideki Hosoda

doi:10.4028/www.scientific.net/MSF.475-479.925

Paper Titles

Influence of Toughening Method on Microstructures and Mechanical Properties of Alumina-Matrix Composites
p.909

Manufacture of Al/SiC Composites by Pressure Infiltration Process
p.913

Rolling and Annealing Textures of SiC_w/Al Composite
p.917

Fabrication of the Aluminum Matrix Composite by Ultrasonic Infiltration Technique
p.921

In Situ Synthesis and Properties of Aluminum Composites with Ultrafine TiB₂ and Al₂O₃ Particulates
p.925

Fracture Behavior of Brittle Coating Layer on Metal Substrate
p.929

Bending Damage Evolution and Its Influence on Critical Current and N-Value of Bi2223/Ag Superconducting Composite Tape
p.933

A Monte Carlo Simulation on the PFZ Microstructures in Al-Based Alloys during Multistep Annealing
p.937

Proposal of Pseudo Crack Model for the Un-Cracking Delamination Behavior of Fiber Reinforced Metal Laminates
p.941

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In Situ Synthesis and Properties of Aluminum Composites with Ultrafine TiB₂ and Al₂O₃ Particulates

Abstract:

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.