CHEMICAL STUDY OF PASSIVATING CHROMIUM-OXIDE FILMS BY SOFT-X-RAY ABSORPTION-SPECTROSCOPY

被引：13

作者：

FIGUEIREDO, MO

DOSSANTOS, AC

CARMEZIM, MJ

ABBATE, M

DEGROOT, FMF

PETERSEN, H

BRAUN, W

机构：

[1] UNIV LISBON,FAC SCI,DEPT CHEM,P-1700 LISBON,PORTUGAL

[2] IICT,CTR CRISTALOGRAFIA & MINERAL,P-1000 LISBON,PORTUGAL

[3] SCH TECHNOL,POLYTECH INST SETUBAL,P-2900 SETUBAL,PORTUGAL

[4] UNIV NIJMEGEN,6525 ED NIJMEGEN,NETHERLANDS

[5] BESSY GMBH,W-1000 BERLIN,GERMANY

来源：

ANALYST | 1994年 / 119卷 / 04期

关键词：

PASSIVATING FILM; ABSORPTION SPECTROSCOPY; SYNCHROTRON RADIATION; CHROMIUM OXIDE;

D O I：

10.1039/an9941900609

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Chromium oxide coatings deposited on stainless-steel surfaces were studied by X-ray absorption spectroscopy (XAS) using synchrotron radiation. Migration of manganese from the steel substrate into the film was found to be significant when gamma-Cr2O3 was developed by thermal treatment of an originally amorphous coating. The passivating efficiency of the film was then largely improved. The presence of other oxidation states of chromium was not confirmed by XAS.

引用

页码：609 / 611

页数：3

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