Phase Composition and Microstructure of Reaction-Bonded Boron-Carbide Materials


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Abstract

Porous boron-carbide billets containing different amounts of carbon (0 – 15 wt%) were infiltrated with molten silicon to produce dense materials (ρ = 99.6% of theoretical) from starting B4C powders with d0.5 90 and 12.5 μm. The phase composition and microstructure of the material were studied. A solid solution of boron carbide in silicon was determined to be present.

About the authors

S. N. Perevislov

St. Petersburg State Technological Institute (Technical University)

Author for correspondence.
Email: perevislov@mail.ru
Russian Federation, St. Petersburg

V. Shcherbak

St. Petersburg State Technological Institute (Technical University)

Email: perevislov@mail.ru
Russian Federation, St. Petersburg

M. V. Tomkovich

A. F. Ioffe Physical-Technical Institute, Russian Academy of Sciences

Email: perevislov@mail.ru
Russian Federation, St. Petersburg

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