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Accelerated ceramization of polymethylsilsesquioxane by aluminum‐ based filler reductant
Author(s) -
Narisawa Masaki,
Kado Hiroyuki,
Mabuchi Hiroshi,
Kim YoungWook
Publication year - 2010
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.1554
Subject(s) - pyrolysis , chemistry , filler (materials) , aluminium , chemical engineering , ceramic , fragmentation (computing) , scanning electron microscope , molar ratio , diffraction , composite material , organic chemistry , catalysis , materials science , optics , computer science , engineering , operating system , physics
Polymethylsilsesquioxane (PMSQ), compounded with particles of Al 2 O 3 (22–47 nm), micro size aluminum (30 µm) or nano size aluminum (50 nm) with a starting Al:Si molar ratio of 1.0, was prepared in a thick sheet form and pyrolyzed at various temperatures up to 1673 K to investigate the filler effect on the ceramization. By adjusting the concentrations of PMSQ, filler and cross‐linking agent in ethanol, self‐standing ceramic sheets were obtained after pyrolysis without fragmentation. The phases formed in each sheet during pyrolysis were identified by using X‐ray diffraction patterns. The resulting micro structures were characterized by the Archimedes method, SEM observation and electron micro probe analysis. Copyright © 2009 John Wiley & Sons, Ltd.