Delayed diffusion of novel species from the back side of carbide

US9108301B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9108301-B2
Application numberUS-201313836155-A
CountryUS
Kind codeB2
Filing dateMar 15, 2013
Priority dateMar 15, 2013
Publication dateAug 18, 2015
Grant dateAug 18, 2015

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A polycrystalline diamond compact (PDC) is fabricated using a process of delayed diffusion of a diffusion species (e.g., a metalloid) introduced from the back side of a cemented carbide further away from the diamond grit or from the flank side of the cemented carbide, as opposed to the side of the cemented carbide adjacent to the diamond grit. The process of fabricating the PDC includes depositing, in a metal container, a diamond grit, a cemented carbide, and a diffusion species, then applying a high pressure and high temperature (HPHT) to the contents of the metal container wherein (1) the binder of cemented carbide diffuses across the diamond grit, and (2) the diffusion species diffuses through the cemented carbide, and then through the diamond grit, thus providing a protective coating to the diamond grains of the PDC.

First claim

Opening claim text (preview).

What is claimed is: 1. A process of fabricating a polycrystalline diamond compact (PDC), comprising: depositing, in a metal container, an amount of a diamond grit; depositing, in the metal container, an amount of a cemented carbide having a binder content adjacent to the diamond grit; depositing, in the metal container, an amount of a diffusion species, such that the diffusion species is spaced apart from the diamond grit by the cemented carbide; and applying a high pressure…

Assignees

Inventors

Classifications

  • B24D99/00Primary

    Operations & Transport · mapped topic

  • B24D3/06Primary

    Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

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What does patent US9108301B2 cover?
A polycrystalline diamond compact (PDC) is fabricated using a process of delayed diffusion of a diffusion species (e.g., a metalloid) introduced from the back side of a cemented carbide further away from the diamond grit or from the flank side of the cemented carbide, as opposed to the side of the cemented carbide adjacent to the diamond grit. The process of fabricating the PDC includes deposit…
Who is the assignee on this patent?
Diamond Innovations Inc
What technology area does this patent fall under?
Primary CPC classification B24D99/00. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).