Influence of the porosity of C/C on the characterization of C/C-SiC composites prepared by reactive melt infiltration method

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

6 Scopus citations

Abstract

C/C-SiC composites were rapidly fabricated using C/C with four different porosities in the range of 12.4%∼45.7% and silicon by reactive-melt- infiltrated (RMI) method. The influence of the C/C porosity on the Si infiltration during the processing and on the microstructure and mechanical properties of the resulting C/C-SiC were investigated. The results show that P-SiC was formed by Si/C reaction and free Si remained in the composites. A higher porosity of C/C leads more Si infiltrating to the preform and produces higher density of C/C-SiC with lower porosity. The flexural strength of the composites was strong influenced by the matrix content and the interface between different phases. C/C-SiC derived from C/C with 24.8% porosity has the highest flexural strength (325.1MPa).

Original languageEnglish
Title of host publication10th International Symposium on Eco-Materials Processing and Design, ISEPD 2009
PublisherTrans Tech Publications Ltd
Pages371-374
Number of pages4
ISBN (Print)0878493271, 9780878493272
DOIs
StatePublished - 2009
Event10th International Symposium on Eco-Materials Processing and Design, ISEPD 2009 - Xian, China
Duration: 13 Jan 200915 Jan 2009

Publication series

NameMaterials Science Forum
Volume620 622
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference10th International Symposium on Eco-Materials Processing and Design, ISEPD 2009
Country/TerritoryChina
CityXian
Period13/01/0915/01/09

Keywords

  • C/C-SiC
  • Mechanical property
  • Microstructure
  • Porosity
  • Reactive melt infiltration

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