Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
ZIRKONOXID-KERAMIK, ZELLULARER WERKSTOFF DARAUS UND VERFAHREN ZUR HERSTELLUNG DER ZIRKONOXID-KERAMIK
The invention relates to the fields of ceramics and metallurgy and refers to a zirconium oxide ceramic and a cellular material made of same, and how they can be used, for example, as a casting filter for steel mould casting. The object of the invention is to provide a zirconium oxide ceramic and a cellular material made of same, having a high level of strength and creep resistance at high temperatures, in particular during use in steel casting. The object is achieved by a zirconium oxide ceramic, consisting of >95 wt.% zirconium oxide and mullite and <5 wt.% additives, wherein of the >95 wt.% zirconium oxide and mullite at least 55-90 wt.% is zirconium oxide, and the zirconium oxide is present in the structure with at least one biomodal particle size distribution, the peak values of which relating to the particle size are spaced apart at least by a factor of 10, and at least components of the used starting materials are present as additives in their unchanged form or as reaction products.
ZIRKONOXID-KERAMIK, ZELLULARER WERKSTOFF DARAUS UND VERFAHREN ZUR HERSTELLUNG DER ZIRKONOXID-KERAMIK
The invention relates to the fields of ceramics and metallurgy and refers to a zirconium oxide ceramic and a cellular material made of same, and how they can be used, for example, as a casting filter for steel mould casting. The object of the invention is to provide a zirconium oxide ceramic and a cellular material made of same, having a high level of strength and creep resistance at high temperatures, in particular during use in steel casting. The object is achieved by a zirconium oxide ceramic, consisting of >95 wt.% zirconium oxide and mullite and <5 wt.% additives, wherein of the >95 wt.% zirconium oxide and mullite at least 55-90 wt.% is zirconium oxide, and the zirconium oxide is present in the structure with at least one biomodal particle size distribution, the peak values of which relating to the particle size are spaced apart at least by a factor of 10, and at least components of the used starting materials are present as additives in their unchanged form or as reaction products.
ZIRKONOXID-KERAMIK, ZELLULARER WERKSTOFF DARAUS UND VERFAHREN ZUR HERSTELLUNG DER ZIRKONOXID-KERAMIK
ZIRCONIA CERAMIC, CELLULAR BODY THEREFROM AND PROCESS FOR THE MANUFACTURE OF THE ZIRCONIA CERAMIC
ZIRCONE CERAMIQUE, CORPS CELLULAIRE DE CELUI-CI ET PROCÉDÉ DE FABRICATION DE LA CERAMIQUE EN ZIRCONE
ADLER JÖRG (Autor:in) / STANDKE GISELA (Autor:in) / HAASE DANIELA (Autor:in)
22.04.2020
Patent
Elektronische Ressource
Deutsch
IPC:
C04B
Kalk
,
LIME
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