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2020-04-20 - Article/Dans un journal avec peer-review - Anglais - 6 page(s)

Stanciu Victor Ioan , Vitry Véronique , Delaunois Fabienne , "Influence of the milling parameters on the sintering behaviour of WC-Co composites" in Materials and Manufacturing Processes, 35, 7, 811-816, doi.org/10.1080/10426914.2020.1743850

  • Edition : Marcel Dekker, New York (NY)
  • Codes CREF : Sciences de l'ingénieur (DI2000), Métallurgie (DI2310), Matériaux composites (DI2726), Matériaux céramiques et poudres (DI2744), Métallographie (DI2330)
  • Unités de recherche UMONS : Métallurgie (F601)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
Texte intégral :

Abstract(s) :

(Anglais) Often, in the studies dealing with the properties of WC-Co composites, the powders are mixed without quantifying the influence of this operation on the properties of the powders. Generally, WC powder, cobalt powder, and inhibitor powder are mixed together in a ball mill. The mixing time varies from 30 minutes to 72 hours in low-energy mixers or high-energy mills. In these conditions, the homogenization effect on the powder may differ greatly. To study the effect of the homogenization operation on the characteristics of two components, a mixture of WC and 10 wt.% of binder doped with Cr3C2 as GGI was prepared. The milling was carried out at speeds of 300 and 600 rpm, using two sizes of ball, for 6 hours. After sintering, the densification was significantly improved for the high-energy processed powders only. Moreover, the results confirm the important influence of mixing parameters on the powder behavior during sintering.

Notes :
  • (Anglais) https://doi.org/10.1080/10426914.2020.1743850

Mots-clés :
  • (Anglais) WC
  • (Anglais) homogenization
  • (Anglais) sintering
  • (Anglais) properties
  • (Anglais) duration
  • (Anglais) milling
  • (Anglais) GGI
  • (Anglais) cobalt