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Article

Key Parameters in the Manufacture of SiC-Based Composite Materials by Reactive Melt Infiltration

by 1,2 and 1,3,4,*
1
Institute of Materials (IUMA), Alicante University, 03690 Alicante, Spain
2
Materials Engineering Department, Purdue University, West Lafayette, IN 47907, USA
3
Department of Inorganic Chemistry, Alicante University, 03690 Alicante, Spain
4
Center for Materials Science and Nanotechnology, Department of Chemistry, University of Oslo, 0316 Oslo, Norway
*
Author to whom correspondence should be addressed.
Materials 2019, 12(15), 2425; https://doi.org/10.3390/ma12152425
Received: 21 June 2019 / Revised: 12 July 2019 / Accepted: 26 July 2019 / Published: 30 July 2019
(This article belongs to the Section Advanced Composites)
The manufacture of SiC-based composites is quite widespread, and currently different methods are employed to produce them. The most efficient method, taking into account the cost/performance ratio, is reactive melt infiltration. It consists in infiltrating liquid silicon into a porous preform that must contain carbon, so that SiC is produced during infiltration. In the present work, the synthesis of two SiC-based composite materials with very different applications and microstructures has been studied and optimized. In both cases, materials have been obtained with suitable properties for the selected applications. One of the materials studied is silicon carbide particles/silicon (SiCp/Si) for protection systems such as armor jackets, and the other one is carbon fiber/silicon carbide (Cf/SiC) for use in braking systems. For the optimization, the dwell time and the atmosphere (Ar or primary vacuum) were used as variables. It has been found that in both preforms, the optimum conditions are 1 h dwell time and a vacuum atmosphere at 1450 °C. The effect of these parameters on microstructure and infiltration kinetics are discussed. View Full-Text
Keywords: SiC; CMCs; reactive infiltration SiC; CMCs; reactive infiltration
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MDPI and ACS Style

Caccia, M.; Narciso, J. Key Parameters in the Manufacture of SiC-Based Composite Materials by Reactive Melt Infiltration. Materials 2019, 12, 2425. https://doi.org/10.3390/ma12152425

AMA Style

Caccia M, Narciso J. Key Parameters in the Manufacture of SiC-Based Composite Materials by Reactive Melt Infiltration. Materials. 2019; 12(15):2425. https://doi.org/10.3390/ma12152425

Chicago/Turabian Style

Caccia, Mario, and Javier Narciso. 2019. "Key Parameters in the Manufacture of SiC-Based Composite Materials by Reactive Melt Infiltration" Materials 12, no. 15: 2425. https://doi.org/10.3390/ma12152425

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