WC grain growth during the early stages of sintering

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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
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.
Format: Artikel
Sprache:eng
Schlagworte:
Discontinuous growth
Grain growth
Ultrafine hardmetals
WC growth inhibition
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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.
ISSN:0263-4368
2213-3917
DOI:10.1016/j.ijrmhm.2005.11.009