PREPARATION METHOD AND APPLICATION OF OXIDIZED CERAMIC LAYER ON SURFACE OF ZIRCONIUM AND ZIRCONIUM ALLOY

The invention discloses a preparation method and application of an oxidized ceramic layer on the surface of zirconium and zirconium alloy. The method comprises the following steps: reducing the roughness of a target area to 0.01 μm or less, performing oxidation treatment in an oxidizing gas atmosphe...

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Bibliographische Detailangaben
Hauptverfasser:	SHEN, Yu, YU, Tianbai, WENG, Chih-Hsin
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES 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 DIFFUSION TREATMENT OF METALLIC MATERIAL DISINFECTION, STERILISATION, OR DEODORISATION OF AIR HUMAN NECESSITIES HYGIENE INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	The invention discloses a preparation method and application of an oxidized ceramic layer on the surface of zirconium and zirconium alloy. The method comprises the following steps: reducing the roughness of a target area to 0.01 μm or less, performing oxidation treatment in an oxidizing gas atmosphere, and replacing the oxidizing gas with inactive gas. According to the technical solution provided in the present application, the surface roughness is controlled before oxidation treatment, so that the surface roughness after oxidation treatment can satisfy the use requirements; and the inert gas replacement after surface oxidation treatment avoids the removal of a film layer with poor performance formed during the cooling process, thereby completely avoiding the need for later polishing treatment, maintaining the integrity and uniformity of the oxidized ceramic layer, and guaranteeing the protective performance.