Patent · US Active

Cubic boron nitride compact

US8382868B2 · kind B2 · utility

3Cited by

6References

14Claims

0Family size

Inventors

Iain Patrick Goudemond · Sandton, ZA
Nedret Can · Boksburg, ZA
Stig Ake Andersin · Church Hanborough, GB

Key dates

Filing date	Oct 27, 2006
Grant date	Feb 26, 2013
Priority date	—
Expiry date	Feb 10, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC22C2026/003
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method of making polycrystalline CBN compacts, high in CBN content, is provided. The method includes making a powdered composition by subjecting a mixture of CBN, present in an amount of at least 80 volume percent of the mixture, and a powdered binder phase to attrition milling. This powdered mixture is subjected to conditions of elevated temperature and pressure suitable to produce CBN compacts.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.