Influence of the type of interface on the tribological characteristics of ICVI generated SiCf/SiC composites

UdayaKumar, A and Balasubramanian, M and Gopala, HB and Sampathkumaran, P and Seetharamu, S and Babu, Ramesh and Sathiyamoorthy, D and Reddy, GR (2011) Influence of the type of interface on the tribological characteristics of ICVI generated SiCf/SiC composites. Wear, 271. pp. 859-865. ISSN 0043-1648

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Official URL: http://dx.doi.org/10.1016/j.wear.2011.03.029

Abstract

The SiCf/SiC ceramic matrix composites find applications in structural, wear resistance and high temperature applications as they are quite superior to their monolithic counter parts due to their improved flaw tolerance, large work of fracture and non-catastrophic failure behaviour. In this investigation, three types of SiCf/SiC composites, i.e., SiCf/SiC composite with carbon interface, SiCf/SiC composite with boron nitride interface and SiCf/SiC composite with boron nitride interface subjected to an intermediate heat treatment have been made via isothermal and isobaric chemical vapour infiltration technique using Nicalon ceramic grade SiC fibres. The density achieved in all the three types of composites is around 2.6–2.7 g/cc. The sliding wear/friction and solid particle erosion experiments were carried out on these composites using a pin-on-disc set up and jet erosion test rig respectively. The composites with carbon interface show higher hardness, lower sliding wear and erosion losses compared to the composite with boron nitride interface with and without intermediate heat treatment. To substantiate the slide wear and erosion data, scanning electron microscopic features have been examined.

Item Type: Article
Additional Information: Copyright for this article belongs to M/s. Elsevier BV
Uncontrolled Keywords: Sliding wear;Solid particle erosion;Hardness;Ceramic-matrix composite;Fibre/Matrix interface
Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
CHEMISTRY AND MATERIALS > Composite Materials
Depositing User: Users 11 not found.
Date Deposited: 16 Feb 2012 04:51
Last Modified: 16 Feb 2012 04:51
URI: http://nal-ir.nal.res.in/id/eprint/10336

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