WO2007148214A3 - Transformation toughened ultrahard composite materials - Google Patents

Transformation toughened ultrahard composite materials Download PDF

Info

Publication number
WO2007148214A3
WO2007148214A3 PCT/IB2007/001695 IB2007001695W WO2007148214A3 WO 2007148214 A3 WO2007148214 A3 WO 2007148214A3 IB 2007001695 W IB2007001695 W IB 2007001695W WO 2007148214 A3 WO2007148214 A3 WO 2007148214A3
Authority
WO
WIPO (PCT)
Prior art keywords
phase
metastable
matrix material
ambient temperature
component
Prior art date
Application number
PCT/IB2007/001695
Other languages
French (fr)
Other versions
WO2007148214A2 (en
Inventor
Antionette Can
Geoffrey John Davies
Johannes Lodewikus Myburgh
Original Assignee
Element Six Production Pty Ltd
Antionette Can
Geoffrey John Davies
Johannes Lodewikus Myburgh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Element Six Production Pty Ltd, Antionette Can, Geoffrey John Davies, Johannes Lodewikus Myburgh filed Critical Element Six Production Pty Ltd
Publication of WO2007148214A2 publication Critical patent/WO2007148214A2/en
Publication of WO2007148214A3 publication Critical patent/WO2007148214A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
    • B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
    • B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
    • B24D3/16—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings for close-grained structure, i.e. of high density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0054—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by impressing abrasive powder in a matrix
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/14—Anti-slip materials; Abrasives
    • C09K3/1436—Composite particles, e.g. coated particles

Abstract

An ultrahard composite material comprises ultrahard particles dispersed in a phase transformable matrix material. The phase transformable matrix material is a single material including all possible crystallographic phases thereof, that comprises at least one component that is metastable at or near ambient temperature and the metastable component is capable of undergoing Martensitic phase transformation when the composite material is placed under stress, for example stress with a significant shear component. The stability of the matrix material at ambient temperature, and its ability to undergo phase transformation, is enhanced or optimised by ensuring that the matrix material comprises predominantly the crystallographic phase that is the metastable phase and/or by providing the matrix material in a nano grain size range that ensures it is metastable at or near ambient temperature. The metastable phase present will transform when stresses are applied during applications such as the machining of hard materials and the like.
PCT/IB2007/001695 2006-06-23 2007-06-22 Transformation toughened ultrahard composite materials WO2007148214A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2006/05214 2006-06-23
ZA200605214 2006-06-23

Publications (2)

Publication Number Publication Date
WO2007148214A2 WO2007148214A2 (en) 2007-12-27
WO2007148214A3 true WO2007148214A3 (en) 2008-05-22

Family

ID=38833821

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/001695 WO2007148214A2 (en) 2006-06-23 2007-06-22 Transformation toughened ultrahard composite materials

Country Status (1)

Country Link
WO (1) WO2007148214A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0823328D0 (en) 2008-12-22 2009-01-28 Element Six Production Pty Ltd Ultra hard/hard composite materials
US8727042B2 (en) 2009-09-11 2014-05-20 Baker Hughes Incorporated Polycrystalline compacts having material disposed in interstitial spaces therein, and cutting elements including such compacts
CA2770502C (en) 2009-08-07 2014-10-07 Baker Hughes Incorporated Polycrystalline compacts including in-situ nucleated grains, earth-boring tools including such compacts, and methods of forming such compacts and tools
EP2488719B8 (en) 2009-10-15 2019-06-26 Baker Hughes, a GE company, LLC Polycrystalline compacts including nanoparticulate inclusions, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts
WO2012064399A1 (en) 2010-11-08 2012-05-18 Baker Hughes Incorporated Polycrystalline compacts including nanoparticulate inclusions, cutting elements and earth-boring tools including such compacts, and methods of forming same
US9181135B2 (en) 2011-06-21 2015-11-10 Diamond Innovations, Inc. Composite compacts formed of ceramics and low volume cubic boron nitride and method of manufacture
GB201305871D0 (en) * 2013-03-31 2013-05-15 Element Six Abrasives Sa Superhard constructions & methods of making same
NZ724909A (en) * 2014-03-21 2022-02-25 Daedalus Innovations Llc Core sample holder
CN117385463A (en) * 2023-11-15 2024-01-12 中国科学院理化技术研究所 Method for realizing giant expansion material, giant expansion material and application

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006032982A1 (en) * 2004-09-23 2006-03-30 Element Six (Pty) Ltd Coated abrasive materials and method of manufacture

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006032982A1 (en) * 2004-09-23 2006-03-30 Element Six (Pty) Ltd Coated abrasive materials and method of manufacture
WO2006032984A2 (en) * 2004-09-23 2006-03-30 Element Six (Pty) Ltd Polycrystalline abrasive materials and method of manufacture

Also Published As

Publication number Publication date
WO2007148214A2 (en) 2007-12-27

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