Effect of carbon content on the formation of Ti3SiC2 in the liquid silicon infiltration process

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In the present work, Ti3SiC2-based composite was fabricated by pressureless infiltrating TiC-C preform with liquid silicon. The effect of carbon content on the phase composition and microstructure is studied, and then the reaction path of forming Ti3SiC2 in the liquid silicon infiltration (LSI) process is discussed. The existence of carbon is beneficial to the formation of Ti3SiC2, and Ti 3SiC2 only appears in the sample with enough carbon content owing to the direct reaction between silicon melt and carbon. In the LSI process, silicon melt firstly reacts with TiC to form TiSi2 and SiC, and then Ti-Sirich eutectic is formed by dissolving the intermediate phase TiSi2 in silicon melt. Finally, Ti3SiC2 is formed by the reaction between Ti-Sirich eutectic and TiC with the existence of carbon.

Original languageEnglish
Title of host publicationHigh Temperature Ceramic Matrix Composites 8 - A Collection of Papers Presented at the HTCMC 2013 Conference
PublisherAmerican Ceramic Society
Pages501-507
Number of pages7
ISBN (Print)9781118932988
DOIs
StatePublished - 2014
Event8th High Temperature Ceramic Matrix Composites Conference, HTCMC 2013 - Xi'an, Shaanxi, China
Duration: 22 Sep 201326 Sep 2013

Publication series

NameCeramic Transactions
Volume248
ISSN (Print)1042-1122

Conference

Conference8th High Temperature Ceramic Matrix Composites Conference, HTCMC 2013
Country/TerritoryChina
CityXi'an, Shaanxi
Period22/09/1326/09/13

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