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Polymer‐filler derived ceramics with low shrinkage using PCS/SiC/Al mixture
Author(s) -
Zhu Y. Z.,
Huang Z. R.,
Dong S. M.,
Yuan M.,
Jiang D. L.
Publication year - 2007
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.200600036
Subject(s) - materials science , ceramic , inert , pyrolysis , filler (materials) , composite material , inert gas , shrinkage , polymer , crystallite , decomposition , chemical engineering , metallurgy , chemistry , organic chemistry , engineering
Abstract Active Al and inert SiC powders were dispersed in the polycarbosilane to manufacture SiC ceramic composites by a new process of active‐filler‐controlled pyrolysis of polymer. 40 wt% of active Al fillers, 40 wt% of inert SiC fillers and 20 wt% of PCS, were homogenized. The samples were obtained by pyrolysis at 1100 °C for different soaking time. The results showed that due to the incorporation of active Al fillers, formation of crystallite phases such as Al 4 C 3 , Al 4 Si 3 and AlN occured due to the of reaction of Al particles with the polymer decomposition products and the reactive nitrogen atmosphere. The microstructural and mechanical characterization results of the composites are presented in the paper. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)