WC grain growth during the early stages of sintering

During sintering of ultrafine-grained WC–Co hardmetals significant WC grain growth takes place already on heating to the isothermal hold. This growth occurs both isotropically as well as in an anisotropic growth mode, where comparatively large trigonal WC plates are formed. Growth inhibitors, such a...

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Veröffentlicht in:International journal of refractory metals & hard materials 2006-01, Vol.24 (5), p.365-373
Hauptverfasser: Adorjan, A., Schubert, W.D., Schön, A., Bock, A., Zeiler, B.
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container_end_page 373
container_issue 5
container_start_page 365
container_title International journal of refractory metals & hard materials
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creator Adorjan, A.
Schubert, W.D.
Schön, A.
Bock, A.
Zeiler, B.
description During sintering of ultrafine-grained WC–Co hardmetals significant WC grain growth takes place already on heating to the isothermal hold. This growth occurs both isotropically as well as in an anisotropic growth mode, where comparatively large trigonal WC plates are formed. Growth inhibitors, such as VC or Cr 3C 2 are added to suppress this early WC growth, but only VC proved to be successful in exploiting the full potential of today’s finest-grained WC powders.
doi_str_mv 10.1016/j.ijrmhm.2005.11.009
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subjects Discontinuous growth
Grain growth
Ultrafine hardmetals
WC growth inhibition
title WC grain growth during the early stages of sintering
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