EP 0909263 A1 19990421 - CERAMIC COMPOSITIONS
Title (en)
CERAMIC COMPOSITIONS
Title (de)
KERAMIKZUSAMMENSETZUNGEN
Title (fr)
COMPOSITIONS DE CERAMIQUE
Publication
Application
Priority
- GB 9701706 W 19970624
- GB 9614188 A 19960705
Abstract (en)
[origin: WO9801405A1] Ceramic compositions which are of particular value in the handling or casting of steel, for example as lining materials or for producing nozzles or shrouds used in continuous casting, comprise a mixture of particles of boron nitride, zirconium diboride and at least one other refractory material, bonded together by carbon produced by the decomposition of an organic binder such as a resin or pitch. The other refractory material may be for example a refractory metal, an oxide, a carbide, a boride or a nitride. Zirconium oxide containing compositions comprising 5-70 % by weight boron nitride, 5-60 % by weight zirconium diboride and 5-80 % by weight of zirconium oxide are particularly suitable for forming at least that part of a nozzle which in use is at the slag line in a molten steel vessel. Aluminium oxide containing compositions comprising 5-70 % by weight boron nitride, 15-50 % by weight zirconium diboride and 10-70 % by weight aluminium oxide are particularly suitable for forming the inside of nozzles as they resist alumina build up and prevent clogging of the nozzles.
IPC 1-7
IPC 8 full level
C04B 35/01 (2006.01); C04B 35/043 (2006.01); C04B 35/103 (2006.01); C04B 35/48 (2006.01); C04B 35/58 (2006.01); C04B 35/583 (2006.01); C04B 35/66 (2006.01)
CPC (source: EP KR)
C04B 35/013 (2013.01 - EP); C04B 35/117 (2013.01 - EP); C04B 35/488 (2013.01 - EP); C04B 35/58 (2013.01 - KR); C04B 35/58078 (2013.01 - EP); C04B 35/583 (2013.01 - EP); C04B 35/63476 (2013.01 - EP); C04B 35/6348 (2013.01 - EP); C04B 35/63484 (2013.01 - EP); C04B 35/63496 (2013.01 - EP); C04B 35/66 (2013.01 - EP); C04B 2235/3217 (2013.01 - EP); C04B 2235/3244 (2013.01 - EP); C04B 2235/38 (2013.01 - EP); C04B 2235/3826 (2013.01 - EP); C04B 2235/386 (2013.01 - EP); C04B 2235/422 (2013.01 - EP)
Citation (search report)
See references of WO 9801405A1
Designated contracting state (EPC)
AT BE DE DK ES FI FR GB IT LU NL SE
DOCDB simple family (publication)
WO 9801405 A1 19980115; AR 003100 A1 19980708; AU 3626597 A 19980202; AU 732774 B2 20010426; BR 9710180 A 20000111; CA 2260197 A1 19980115; EP 0909263 A1 19990421; GB 9614188 D0 19960904; JP 2001505176 A 20010417; KR 20000023576 A 20000425; TR 199802768 T2 19990322; TW 436471 B 20010528; ZA 975895 B 19980130
DOCDB simple family (application)
GB 9701706 W 19970624; AR P970102980 A 19970703; AU 3626597 A 19970624; BR 9710180 A 19970624; CA 2260197 A 19970624; EP 97932897 A 19970624; GB 9614188 A 19960705; JP 50489298 A 19970624; KR 19997000021 A 19990105; TR 9802768 T 19970624; TW 86109521 A 19970718; ZA 975895 A 19970702