Title

Reaction Sintering of Submicrometer Silicon Powder

Document Type

Article

Date of Original Version

1-1-1987

Abstract

Submicrometer silicon powder synthesized by thermally induced, vapor‐phase reaction in an aerosol reactor was densified by reaction sintering to form Si3N4. The densification behavior of these spherical, nonagglomerated particles in the 0.1 to 0.2 μm size range is described. Competition between densification by silicon sintering and reaction product infilling was observed at typical reaction sintering temperatures. In addition, pore growth during the early stages of silicon presintering adversely affected nitrogen permeability and nitriding rates. The factors influencing the nitridation of ultrafine silicon powders are discussed. Copyright © 1987, Wiley Blackwell. All rights reserved

Publication Title

Journal of the American Ceramic Society

Volume

70

Issue

3

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