STAINLESS STEEL MEMBER AND PRODUCTION METHOD THEREOF

The purpose of the present invention is to provide a stainless steel member and a production method thereof, said stainless steel member having a passivation layer formed on a surface of a base material formed from stainless steel, wherein the film thickness of the passivation layer is 2-20 nm, and...

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Hauptverfasser: NAKAMURA Yumiko, SERA Akira, NAKATANI Michihito
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Sprache:eng
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creator NAKAMURA Yumiko
SERA Akira
NAKATANI Michihito
description The purpose of the present invention is to provide a stainless steel member and a production method thereof, said stainless steel member having a passivation layer formed on a surface of a base material formed from stainless steel, wherein the film thickness of the passivation layer is 2-20 nm, and the concentration of chromium atoms in the outermost surface of the passivation layer is 0.1-2.3 by atomic percentage. Also provided are a device or container, the liquid-contact part of which in contact with a semiconductor treatment liquid is formed from the stainless steel member, a semiconductor treatment liquid production method for producing the semiconductor treatment liquid by using the device, and a semiconductor treatment liquid storage method for storing the semiconductor treatment liquid in the container.
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subjects APPARATUS THEREFOR
CHEMICAL SURFACE TREATMENT
CHEMISTRY
CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS
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
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL
METALLURGY
PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROMOBJECTS
SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
title STAINLESS STEEL MEMBER AND PRODUCTION METHOD THEREOF
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