Submicron carbonitride powders and their use

US5476530A · kind A · utility

Assignee

• Hermann C. Starck GmbH & Co. KG · DE

Inventors

• Benno Gries · Wolfenbüttel, DE
• Gerhard Gille · Goslar, DE
• Mario Salvadori · Goslar, DE

Key dates

• Filing date: Apr 30, 1993
• Grant date: Dec 19, 1995
• Expiry date: Apr 30, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/80
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

This invention relates to submicron carbonitride powders of titanium and, optionally, other transition metals of the fifth (Me.sup.(5)) and sixth (Me.sup.(6)) secondary group of the periodic system of elements which have the following general molar composition: (Ti.sub.L Me.sub.M.sup.(5) Me.sup.(6).sub.1-L-M) (C.sub.1-y N.sub.y).sub.z with 0.50.ltoreq.L.ltoreq.1; 0.ltoreq.m.ltoreq.0.15; 0.ltoreq.(1-L-M).ltoreq.0.50; 0.10.ltoreq.y.ltoreq.0.95 and z.gtoreq.0.90, to a process for the production of these powders and to their use.