Abrasive compacts

C - Chemistry – Metallurgy – 22 – C

Patent

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Details

C22C 26/00 (2006.01)

Patent

CA 2673467

The invention is for a polycrystalline diamond abrasive compact comprising a primary polycrystalline diamond material of bonded diamond particles and a secondary polycrystalline diamond material interspersed through the primary polycrystalline diamond material or a region thereof. The invention is characterised in that the secondary polycrystalline diamond material comprises particulates or granules of thermally stable polycrystalline diamond material. The invention extends to an abrasive cutting element suitable for cutting or abrading a substrate or in drilling applications.

L'invention porte sur un comprimé abrasif polycristallin à base de diamant comprenant un matériau primaire polycristallin à base de diamant fait de particules de diamant liées ; et un matériau secondaire polycristallin à base de diamant parsemé dans le matériau primaire polycristallin à base de diamant ou dans une zone de celle-ci. L'invention est caractérisée en ce fait que le matériau secondaire polycristallin à base de diamant comprend des particules ou des granulés de matériau polycristallin à base de diamant thermiquement stable. L'invention porte également sur un élément de coupe abrasif approprié pour la découpe ou l'abrasion d'un substrat ou pour des applications de forage.

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