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Thermophysical Properties of Alumina Particle Reinforced Glass Matrix Composites
Author(s) -
Chen Minghui,
Zhu Shenglong,
Shen Mingli,
Wang Fuhui,
Niu Yan
Publication year - 2012
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2012.02806.x
Subject(s) - materials science , composite material , thermal expansion , softening point , fracture toughness , thermal shock , vickers hardness test , intermetallic , microstructure , alloy
Alumina particles incorporated glass matrix composites, which showed good prospect to be used as coating materials for high‐temperature corrosion protection on intermetallics or titanium alloys, were prepared via pressureless sintering. With increasing alumina content, the Young's modulus, fracture strength, Vickers hardness, indentation toughness, softening point, and thermal shock resistance of the composites increased monotonically. A similar increasing trend could be found for the thermal expansion coefficient of the composites, except for an abnormal drop at small amount of incorporation, which closely correlated with the Al 3+ dissolution into the glass matrix.