Published January 15, 1991 | Version v1
Patent Metadata-only

Supported thermally stable cubic boron nitride tool blanks and method for making the same

Creators

Description

This patent describes a method for making supported thermally stable cubic boron nitride or wurtzitic boron nitride compacts or wire dies. It comprises: providing a mass of sinterable cubic boron nitride or wurtzitic boron nitride particles substantially free of catalytic material and a metal-bonded support mass or annulus or a molding powder for in-situ formation of a metal-bonded support mass or annulus; positioning a barrier layer between the mass of sinterable cubic boron nitride or wurtzitic boron nitride particles and the metal-bonded mass or annulus or the molding powder; and subjecting such arrangement of materials to pressure and temperature conditions for a time effective for sintering the cubic boron nitride or wurtzitic boron nitride particles and substantially preventing migration of metal bond material from the support mass or the molding powder into the mass of cubic boron nitride or wurtzitic boron nitride

Availability note (English)

Patent and Trademark Office, Box 9, Washington, DC 20232 (USA).

Additional details

Publishing Information

Imprint Pagination
vp.
IPC:
Int. Cl. B24D 3/00.
IPC
Int. Cl. B24D 3/00.
Patent number
US patent document 4,985,050/A/

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
23018636
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
BORON NITRIDES; CASTING; COMPACTING; DESIGN; SINTERING; THERMODYNAMIC PROPERTIES
Descriptors DEC
BORON COMPOUNDS; FABRICATION; NITRIDES; NITROGEN COMPOUNDS; PHYSICAL PROPERTIES; PNICTIDES