Effects of high energy milling on densification behaviour of Mo–Si powder mixtures during pressureless sintering

The present paper reports on basic investigations of the controlled reaction sintering of MoSi 2-based materials, including particle reinforced composites. It is shown, that certain amounts of pre-formed silicide phase in the powder mixtures are useful to achieve high densities by pressureless sinte...

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Veröffentlicht in:Intermetallics 2002-09, Vol.10 (9), p.873-878
Hauptverfasser: Schubert, Thomas, Böhm, Alexander, Kieback, Bernd, Achtermann, Matthias, Scholl, Roland
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container_title Intermetallics
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creator Schubert, Thomas
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description The present paper reports on basic investigations of the controlled reaction sintering of MoSi 2-based materials, including particle reinforced composites. It is shown, that certain amounts of pre-formed silicide phase in the powder mixtures are useful to achieve high densities by pressureless sintering of green compacts. This partial phase formation of αMoSi 2 can already take place during the mechanical treatment of the elemental powder mixtures by milling. In this context the role of volume changes linked with the phase formations is discussed.
doi_str_mv 10.1016/S0966-9795(02)00083-3
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subjects A. Composites
A. Molybdenum silicides
C. Mechanical alloying and milling
C. Sintering
title Effects of high energy milling on densification behaviour of Mo–Si powder mixtures during pressureless sintering
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