Global Patent Index - EP 0674723 A1

EP 0674723 A1 19951004 - METAL NITRIDE COATED SUBSTRATES.

Title (en)

METAL NITRIDE COATED SUBSTRATES.

Title (de)

METALLNITRID BESCHICHTETE SUBSTRATE.

Title (fr)

SUBSTRATS RECOUVERTS DE NITRURES METALLIQUES.

Publication

EP 0674723 A1 19951004 (EN)

Application

EP 94904442 A 19931214

Priority

  • US 9312150 W 19931214
  • US 99192992 A 19921217

Abstract (en)

[origin: WO9413853A1] A metal nitride coated substrate can be made by coating the substrate with an oxide of Al, Ti, or Zr or a hydroxide of Al, Ti, or Zr derived from a sol gel. The coated substrate is heated to a reaction temperature of at least about 850 DEG C and contacted with a gaseous reactant mixture comprising a nitrogen source and a carbon source. The molar ratio of nitrogen to carbon in the gaseous reactant mixture is at least about 15. The coated substrate is maintained at the reaction temperature for a sufficient time to convert the sol gel-derived coating to a metal nitride coating.

IPC 1-7

C23C 18/12; C04B 41/50

IPC 8 full level

C04B 41/50 (2006.01); C04B 41/87 (2006.01); C23C 18/12 (2006.01); C23C 24/08 (2006.01); C23C 28/04 (2006.01)

CPC (source: EP KR)

C04B 41/5062 (2013.01 - EP); C23C 18/1204 (2013.01 - EP KR); C23C 18/1245 (2013.01 - EP KR); C23C 18/1254 (2013.01 - EP KR); C23C 18/1275 (2013.01 - EP); C23C 18/1279 (2013.01 - KR)

Citation (search report)

See references of WO 9413853A1

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

WO 9413853 A1 19940623; CA 2151931 A1 19940623; EP 0674723 A1 19951004; JP H08504888 A 19960528; KR 950704536 A 19951120

DOCDB simple family (application)

US 9312150 W 19931214; CA 2151931 A 19931214; EP 94904442 A 19931214; JP 51448193 A 19931214; KR 19950702475 A 19950616