EP 1025042 A1 20000809 - CARBONITRIDE POWDER, METHOD FOR PRODUCING SAME, AND USE THEREOF
Title (en)
CARBONITRIDE POWDER, METHOD FOR PRODUCING SAME, AND USE THEREOF
Title (de)
CARBONITRID-PULVER, VERFAHREN ZU IHRER HERSTELLUNG SOWIE DEREN VERWENDUNG
Title (fr)
POUDRE DE CARBONITRURE, PROCEDE PERMETTANT DE LA PREPARER ET UTILISATION
Publication
Application
Priority
- DE 19704242 A 19970205
- EP 9800364 W 19980123
Abstract (en)
[origin: WO9834874A1] The present invention relates to a method for producing carbonitride powders of the metals of the fourth, fifth and sixth subgroups of the periodic table of elements by calcination of mixtures of corresponding double oxides or multiple oxides, soot and possibly other carbon-containing compounds in an atmosphere containing nitrogen. The invention also relates to carbonitride powders of the metals of the fourth, fifth and sixth subgroups of the periodic table of elements having a mean particle size d50 of less than 5 mu m, oxygen and free carbon contents of less than 0.1 weight percent each, as well as impurities of metals belonging to the iron group amounting to less than 0.15 weight percent. The invention further relates to a two-phase titanium-zirconium-carbonitride powder with a mean particle size d50 of less than 5 mu m, and a single-phase titanium-zirconium-carbonitride powder with an equimolar Zr:Ti ratio, a nitrogen content of up to 10 weight percent nitrogen, and a mean particle size d50 of less than 5 mu m. In addition, the invention relates to the use of said carbonitride powders.
IPC 1-7
IPC 8 full level
C01B 21/082 (2006.01); C01G 25/00 (2006.01); C22C 1/05 (2006.01); C22C 29/02 (2006.01); C22C 29/04 (2006.01)
CPC (source: EP KR)
C01B 21/082 (2013.01 - KR); C01B 21/0828 (2013.01 - EP); C22C 1/051 (2013.01 - EP); C22C 29/04 (2013.01 - EP); C01P 2002/77 (2013.01 - EP); C01P 2004/03 (2013.01 - EP); C01P 2004/61 (2013.01 - EP)
Citation (search report)
See references of WO 9834874A1
Designated contracting state (EPC)
AT BE CH DE ES FR GB LI LU SE
DOCDB simple family (publication)
WO 9834874 A1 19980813; CN 1246102 A 20000301; DE 19704242 C1 19980827; EP 1025042 A1 20000809; IL 130928 A0 20010128; JP 2001510435 A 20010731; KR 20000070755 A 20001125
DOCDB simple family (application)
EP 9800364 W 19980123; CN 98802140 A 19980123; DE 19704242 A 19970205; EP 98904128 A 19980123; IL 13092898 A 19980123; JP 53369398 A 19980123; KR 19997007014 A 19990804