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Processing of Open‐Cell Silicon Carbide Foams by Steam Chest Molding and Carbothermal Reduction
Author(s) -
Kim YoungWook,
Eom JungHye,
Guo Yanting,
Zhai Wentao,
Park Chul B.,
Song InHyuck
Publication year - 2011
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.1551-2916.2010.04311.x
Subject(s) - carbothermic reaction , sintering , silicon carbide , materials science , molding (decorative) , pyrolysis , fabrication , composite material , silicon , carbide , chemical engineering , metallurgy , medicine , alternative medicine , pathology , engineering
Open‐cell silicon carbide (SiC) foams were fabricated using a newly developed process based on a steam chest molding and carbothermal reduction process. The fabrication process involved the following steps: (i) blending of a mixture of polysiloxane, carbon, hollow microsphere, and sintering additives (AlN–Y 2 O 3 ), (ii) steam chest molding of the mixture, (iii) transforming the polysiloxane by pyrolysis into silicon oxycarbide, and (iv) fabricating SiC foams by carbothermal reduction and subsequent sintering.