Silicide Composites

Pelleg, Joshua

doi:10.1007/978-3-030-22598-8_11

Joshua Pelleg²

Part of the book series: Engineering Materials ((ENG.MAT.))

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Abstract

To improve strength and creep resistance of MoSi₂, WSi₂ and TiSi₂ reinforcing phases are added to produce silicide composites. Their effect depends on size and shape. Common composites of these silicides are based on addition of SiC, Si₃N₄ and other silicides such as TaSi₂. An effective silicide added as a strengthener to MoSi₂ is Mo₅Si₃. The low fracture toughness below the ductile to brittle transition temperature in WSi₂ is expected to be improved by SiC additions. The improvement in the fracture toughness in WSi₂ and TiSi₂ is a result of crack deflection and crack bridging.

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Department of Materials Engineering, Ben-Gurion University of the Negev, Beer Sheva, Israel
Joshua Pelleg

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Joshua Pelleg
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Correspondence to Joshua Pelleg .

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Pelleg, J. (2019). Silicide Composites. In: Mechanical Properties of Silicon Based Compounds: Silicides. Engineering Materials. Springer, Cham. https://doi.org/10.1007/978-3-030-22598-8_11

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DOI: https://doi.org/10.1007/978-3-030-22598-8_11
Published: 17 July 2019
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-22597-1
Online ISBN: 978-3-030-22598-8
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)

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