Nanoprocesses in polymer‐derived Si–O–C ceramics: Electronmicroscopic observations and reaction kinetics | Zendy

Berger A. | Zendy; Pippel E. | Zendy; Woltersdorf J. | Zendy; Scheffler M. | Zendy; Cromme P. | Zendy; Greil P. | Zendy

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Nanoprocesses in polymer‐derived Si–O–C ceramics: Electronmicroscopic observations and reaction kinetics

Author(s) -

Berger A.,

Pippel E.,

Woltersdorf J.,

Scheffler M.,

Cromme P.,

Greil P.

Publication year - 2005

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200521201

Subject(s) - ceramic , materials science , pyrolysis , microstructure , polymer , chemical engineering , nanowire , filler (materials) , amorphous solid , carbon nanotube , silicon , kinetics , carbon fibers , composite material , nanotechnology , composite number , chemistry , crystallography , metallurgy , physics , quantum mechanics , engineering

Nickel acetate doped poly(methylphenylsilsesquioxane) with and without silicon filler loading was pyrolysed in argon atmosphere between 800 and 1500 °C. The ceramic residues were investigated with specific view of the nanoaggregates formed in pores during the polymer‐to‐ceramic conversion. After pyrolysis at 900 °C carbon nanotubes as well as nanowires with a crystalline SiC core and an amorphous SiO 2 shell were found in Si filler‐free and Si filler‐loaded samples, respectively. The evolution of the microstructure and the composition of these carbon nanotubes and SiC/SiO 2 nanowires were studied by HREM, SEM, EELS, EFTEM and evolved gas analysis. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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