Invention Grant
- Patent Title: Method of making super-hard articles
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Application No.: US15327047Application Date: 2015-07-10
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Publication No.: US11261133B2Publication Date: 2022-03-01
- Inventor: Santonu Ghosh
- Applicant: Element Six (UK) Limited
- Applicant Address: GB Oxfordshire
- Assignee: Element Six (UK) Limited
- Current Assignee: Element Six (UK) Limited
- Current Assignee Address: GB Oxfordshire
- Agency: Armstrong Teasdale LLP
- Priority: GB1412809 20140718
- International Application: PCT/EP2015/065869 WO 20150710
- International Announcement: WO2016/008821 WO 20160121
- Main IPC: C04B35/5831
- IPC: C04B35/5831 ; C22C26/00 ; B28B19/00 ; B22F3/20 ; B22F5/00 ; C04B35/626 ; C04B35/638 ; B28B3/02 ; C04B35/634 ; C04B35/645 ; C04B35/528 ; C04B41/50 ; C04B35/622 ; C04B35/632 ; C04B35/64 ; B23P15/34

Abstract:
This application describes a method of making a super-hard article that includes a super-hard structure bonded to a substrate. The super-hard structure generally includes a sintered plurality of super-hard grains made from cubic boron nitride. The method generally includes providing raw material powder suitable for sintering the super-hard structure; combining the raw material powder with an organic binder material in a liquid medium to form a paste; providing a substrate assembly having a formation surface area configured for forming a boundary of the super-hard structure, the substrate having a recess coterminous with the formation surface area; extruding the paste into contact with the formation surface area to provide a paste assembly; and heat treating and/or sintering the paste assembly to remove the binder material and provide a pre-sinter assembly.
Public/Granted literature
- US20170144936A1 METHOD OF MAKING SUPER-HARD ARTICLES Public/Granted day:2017-05-25
Information query
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