CA2265399A1 - Metal-matrix diamond or cubic boron nitride composites - Google Patents

Metal-matrix diamond or cubic boron nitride composites Download PDF

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Publication number
CA2265399A1
CA2265399A1 CA 2265399 CA2265399A CA2265399A1 CA 2265399 A1 CA2265399 A1 CA 2265399A1 CA 2265399 CA2265399 CA 2265399 CA 2265399 A CA2265399 A CA 2265399A CA 2265399 A1 CA2265399 A1 CA 2265399A1
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CA
Canada
Prior art keywords
metal
matrix
boron nitride
diamond
cubic boron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2265399
Other languages
French (fr)
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CA2265399C (en
Inventor
Zhigang Fang
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Smith International Inc
Original Assignee
Smith International Inc
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Publication date
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Publication of CA2265399A1 publication Critical patent/CA2265399A1/en
Application granted granted Critical
Publication of CA2265399C publication Critical patent/CA2265399C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Powder Metallurgy (AREA)

Abstract

A metal-matrix diamond or cubic boron nitride composite and method of making the same are disclosed. The metal-matrix/diamond composite includes grains of diamond uniformly distributed in a metal matrix. Alternatively, grains of cubic boron nitride may be used. Suitable metals for the metal matrix material may include nickel, cobalt, iron, and mixtures or alloys thereof. Other transition metals also may be used.
The metal-matrix/diamond or metal-matrix/cubic boron nitride composite has high fracture toughness due to its fine microstructure. Such a metal-matrix/diamond or metal-matrix/cubic boron nitride composite is suitable for use in blanks or cutting elements for cutting tools, drill bits, dressing tools, and wear parts. It also may be used to make wire drawing dies.
CA 2265399 1998-03-19 1999-03-17 Metal-matrix diamond or cubic boron nitride composites Expired - Fee Related CA2265399C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7855398P 1998-03-19 1998-03-19
US60/078,553 1998-03-19

Publications (2)

Publication Number Publication Date
CA2265399A1 true CA2265399A1 (en) 1999-09-19
CA2265399C CA2265399C (en) 2006-05-16

Family

ID=29709295

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2265399 Expired - Fee Related CA2265399C (en) 1998-03-19 1999-03-17 Metal-matrix diamond or cubic boron nitride composites

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CA (1) CA2265399C (en)

Also Published As

Publication number Publication date
CA2265399C (en) 2006-05-16

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Effective date: 20170317