EP 0211948 A4 19880121 - PROCESS FOR THE PREPARATION OF SUBMICRON-SIZED BORON CARBIDE POWDERS.
Title (en)
PROCESS FOR THE PREPARATION OF SUBMICRON-SIZED BORON CARBIDE POWDERS.
Title (de)
HERSTELLUNGSVERFAHREN FÜR SUBMIKRONE BORONKARBIDPULVER.
Title (fr)
PROCEDE DE PREPARATION DE POUDRES DE CARBURE DE BORE DE TAILLE INFERIEURE AU MICRON.
Publication
Application
Priority
US 70084185 A 19850212
Abstract (en)
[origin: WO8604524A1] Ultrafine, high purity B4C is produced by BCl3, CH4 or C2H4, and H2, using a CO2 laser (10), where a stoichiometric excess of H2 and about half the stoichiometric amount of CH4 or C2H4 is employed.
IPC 1-7
IPC 8 full level
B01J 19/12 (2006.01); C01B 31/36 (2006.01); C04B 35/563 (2006.01)
CPC (source: EP KR US)
B01J 19/12 (2013.01 - KR); B01J 19/121 (2013.01 - EP); B82Y 30/00 (2013.01 - EP); C01B 32/991 (2017.07 - EP US); C04B 35/563 (2013.01 - EP US); C04B 35/645 (2013.01 - EP); C01P 2002/72 (2013.01 - EP); C01P 2004/62 (2013.01 - EP); C01P 2004/64 (2013.01 - EP); C01P 2006/10 (2013.01 - EP); C01P 2006/12 (2013.01 - EP); C01P 2006/60 (2013.01 - EP); C01P 2006/90 (2013.01 - EP)
Citation (search report)
- [A] FR 2232613 A1 19750103 - POUDRES & EXPLOSIFS STE NALE [FR]
- [AD] CERAMIC ENGINEERING AND SCIENCE PROCEEDINGS, vol. 3, no. 1/2, 1982, pages 3-19, Columbus, Ohio, US; R.A. MARRA et al.: "Synthesis and characteristics of ceramic powders made from laser-heated gases"
- See references of WO 8604524A1
Designated contracting state (EPC)
BE DE FR GB IT NL SE
DOCDB simple family (publication)
WO 8604524 A1 19860814; EP 0211948 A1 19870304; EP 0211948 A4 19880121; JP S62501838 A 19870723; KR 870700028 A 19870228
DOCDB simple family (application)
US 8600322 W 19860212; EP 86901635 A 19860212; JP 50133986 A 19860212; KR 860700706 A 19861011