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A Process for C f /SiC Composites Using Liquid Polymer Infiltration
Author(s) -
Rak Zbigniew S.
Publication year - 2001
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2001.tb00994.x
Subject(s) - materials science , composite material , silicon carbide , microstructure , pyrolysis , composite number , polymer , porosity , chemical vapor infiltration , fiber , infiltration (hvac) , chemical engineering , engineering
A continuous carbon fiber/silicon carbide matrix composite material has been produced by a low‐cost process. In this process the space in a two‐dimensional carbon fiber preform is filled with a SiC powder by a pressure infiltration method. High particle packing densities are achieved within the fiber preform in this way. The compact body is heat‐treated at 400°C to form a porous framework, which is then infiltrated with a liquid preceramic polymer, Ceraset TM SN. Subsequently the infiltrated polymer is pyrolyzed in argon at 1300°C. The microstructure of the final composite is characterized, and mechanical properties of these composites are discussed.