Title

Near‐Stoichiometric Silicon Carbide from an Economical Polysilane Precursor

Document Type

Article

Publication Date

5-1992

Publication Title

Journal of the American Ceramic Society

Keywords

Journal of the American Ceramic Society

Abstract

Na condensation of CH3SiHCl2 gives polysilanes of the type ((CH3SiH)x (CH3Si)y )n (where x +y = 1) whose pyrolysis in a stream of Ar gives SiC and a substantial amount of elemental Si. Treatment of such polysilanes with catalytic quantities of group‐IV‐metal–organometallic complexes, ((η‐C5H5)2ZrH2)n , (η‐C5H5)2Zr(CH3)2, (η‐C5H5)2ZrHCl, and (η‐C5H5)2‐Ti(CH3)2, results in cross‐linking processes such that pyrolysis of these polysilanes gives close to stoichiometric SiC (≥95 wt %) and only very little elemental Si.

Comments

Copyright © 2020 The American Ceramic Society, all rights reserved

S. M. Wiederhorn–contributing editor

Supported by the Air Force Office of Scientific Research.

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