Process for producing titanium nitride base cermets with high toughness
US4521248A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1984 |
| Grant date | Jun 4, 1985 |
| Priority date | — |
| Expiry date | Aug 20, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C29/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing titanium nitride base cermet with a high toughness comprises the steps of: PA0 admixing 0.5 to 10 parts by volume of a carbon powder with a cermet material powder in an amount of 100 parts by volume based on nitrides in the cermet material powder, the cermet material powder essentially consisting of, by weight, 40 to 93% TiN, 2 to 15% of one or more selected from the group consisting of metals of the Group VIa of the periodic table and carbides thereof, 4.7 to 35% of iron group metal, and 0.3 to 10% of AlN with the balance being inevitable impurities, PA0 compacting and sintering whereby when the compact is sintered, said AlN is substantially decomposed. TiN may be partly replaced with carbides and/or carbonitrides of metals of the Groups IVa and Va of the periodic Table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.