Preprint Article Version 1 This version is not peer-reviewed

SiC-IrSi3 for High Oxidation Resistance

Version 1 : Received: 6 November 2019 / Approved: 8 November 2019 / Online: 8 November 2019 (02:29:02 CET)

How to cite: Camarano, A.; Giuranno, D.; Narciso, J. SiC-IrSi3 for High Oxidation Resistance. Preprints 2019, 2019110078 (doi: 10.20944/preprints201911.0078.v1). Camarano, A.; Giuranno, D.; Narciso, J. SiC-IrSi3 for High Oxidation Resistance. Preprints 2019, 2019110078 (doi: 10.20944/preprints201911.0078.v1).

Abstract

SiC is a material with excellent mechanical and thermal properties, but with a high production cost. Obtaining SiC by reactive infiltration is an attractive method and at a much lower cost than the traditional sintering process. However, the reactive infiltration process presents a serious problem, which is the high residual silicon content, which decreases its range of application. The replacement of silicon with silicides is a widely used alternative. The present investigation shows the good mechanical properties of the SiC/IrSi3 composite material obtained by reactive infiltration of SiC/C preforms with Ir-Si alloys. The thermomechanical analysis shows a high compatibility of silicide with SiC. The presence of the silicide shows a substantial improvement against the oxidation of the SiC/Si composites.

Subject Areas

SiC composites; reactive infiltration; silicides

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