Manufacturing SiC-fiber-reinforced SiC matrix composites by improved CVI/slurry infiltration/polymer impregnation and pyrolysis

Carlo Alberto Nannetti, Alberto Ortona, Dario A. de Pinto, Bruno Riccardi

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Two- and three-dimensional SiCf/SiC composites have been prepared starting from Tyranno SA™ fiber preforms. Preform densification has been performed by a modified preceramic polymer impregnation and pyrolysis (PIP) process consisting of filling the preform large interbundle voids with SiC powder before the PIP process. This step was accomplished by low-pressure infiltration of a SiC powder dilute slurry through the preform thickness. Specimens were further processed with polymer impregnation and pyrolysis to determine the effects on structural, thermal, and mechanical properties of the obtained composites. High-temperature pyrolysis treatment, which promoted polymer derived SiC matrix crystallization, markedly increased thermal diffusivity.
Original languageEnglish
Pages (from-to)1205 - 1209
Number of pages5
JournalJournal of the American Ceramic Society
Volume87
Issue number7
DOIs
Publication statusPublished - 2004
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Geology
  • Geochemistry and Petrology
  • Materials Chemistry

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