US 7,541,090 B2
Dual-phase hard material comprising tungsten carbide, process for the production thereof and its use
Christian Gerk, Wallemoden (Germany); and Klaus-Dieter Wernicke, Säckingen (Germany)
Assigned to H.C. Starck GmbH, (Germany)
Appl. No. 10/579,291
PCT Filed Nov. 16, 2004, PCT No. PCT/EP2004/012959
§ 371(c)(1), (2), (4) Date Oct. 27, 2006,
PCT Pub. No. WO2005/049490, PCT Pub. Date Jun. 02, 2005.
Claims priority of application No. 103 54 543 (DE), filed on Nov. 21, 2003.
Prior Publication US 2007/0079905 A1, Apr. 12, 2007
Int. Cl. B32B 5/16 (2006.01); B05D 3/02 (2006.01)
U.S. Cl. 428—403  [427/215; 427/227] 16 Claims
OG exemplary drawing
 
1. A tungsten carbide powder which consists essentially of powder particles which have a core of cast tungsten carbide and a shell of tungsten monocarbide.