CERAMIC-METAL JOINED BODY AND PRODUCTION THEREOF

PURPOSE:To obtain the joined body having high bonding strength and satisfactory oxidation preventing property and not causing exfoliation even after use at a high temp. over a long period of time by forming a heat insulating layer obtd. by sintering a heat insulating material based on inorg. hollow...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHASHI NORIO, MORIKAWA KATSUMI, KIDO KANESUKE, YANO MITSURU, NAKAMIZO MASATOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIME, MAGNESIA METALLURGY REFRACTORIES SLAG SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain the joined body having high bonding strength and satisfactory oxidation preventing property and not causing exfoliation even after use at a high temp. over a long period of time by forming a heat insulating layer obtd. by sintering a heat insulating material based on inorg. hollow granules on a reactive binding layer consisting of a silicate and an oxide coating film formed on the surface of a metal member. CONSTITUTION:A metal member is heated to >=500 deg.C in a steam atmosphere to form an oxide coating film on the surface. This oxide coating film is coated with a sol of a silicate such as sodium silicate as a binder and the resulting binder layer is coated with a mixture of a heat insulating material based on inorg. hollow granules with a silicate binder and a hardening agent. They are held under heating at about 750-850 deg.C in a neutral atmosphere for about 0.5-1.5hr to obtain a ceramic-metal joined body having the above-mentioned characteristics.