Conversion of polycarbosilane to silicon carbide: effect of an active filler and pyrolysis conditions

This paper reports the effect of titanium silicide active filler and the pyrolytic atmosphere (argon and nitrogen) on the ceramic conversion of polycarbosilane. Pyrolysis atmosphere and concentration of titanium silicide active filler was optimized to produce minimum shrinkage polycarbosilane derive...

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Bibliographic Details
Published in:Journal of materials science 2023-11, Vol.58 (41), p.16046-16062
Main Authors: Vijay, V. Vipin, Nair, Sandhya G., Devasia, Renjith
Format: Article
Language:English
Subjects:
Argon
Ceramic coatings
Ceramic industry
Ceramic materials
Ceramic matrix composites
Ceramics
Characterization and Evaluation of Materials
Chemical Routes to Materials
Chemistry and Materials Science
Classical Mechanics
Crystallography and Scattering Methods
Fillers
heat
Heat treatment
Intermetallic compounds
Materials Science
Nitrogen
Polymer Sciences
Polymers
Pyrolysis
shrinkage
Silicides
Silicon
Silicon carbide
Solid Mechanics
Titanium
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Summary:This paper reports the effect of titanium silicide active filler and the pyrolytic atmosphere (argon and nitrogen) on the ceramic conversion of polycarbosilane. Pyrolysis atmosphere and concentration of titanium silicide active filler was optimized to produce minimum shrinkage polycarbosilane derived ceramic. Detailed investigation on the phase evolution and surface morphology of the titanium silicide incorporated polycarbosilane derived ceramic under different pyrolysis atmospheres were carried out. From the results, it was concluded that 40 wt% titanium silicide loaded PCS system heat treated under nitrogen atmosphere was found to be the best precursor to obtain a minimum shrinkage ceramic phase with better properties. Therefore, this system offers the opportunity to expedite the rapid fabrication process of ceramic matrix composites, create flawless ceramic coatings, and produce bulk ceramic materials free from shrinkage.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-023-09056-4