Atomic structure of the passive oxide film formed on iron

Michael F. Toney; Alison J. Davenport; Lucy J. Oblonsky; Mary P. Ryan; Carissima M. Vitus

Atomic structure of the passive oxide film formed on iron

Michael F. Toney^*, Alison J. Davenport, Lucy J. Oblonsky, Mary P. Ryan, Carissima M. Vitus

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

175 Citations (Scopus)

Abstract

We have used x-ray scattering to measure the structure of the passive oxide film formed at high anodic potentials on Fe(110) and Fe(001). The crystalline film has a small crystallite size (≈50 Å) and is oriented with the substrate. The film structure is based on Fe₃O₄, but with cation vacancies on octahedral and tetrahedral sites (80% and 66% occupancies, respectively) and with cations occupying octahedral interstitial sites (12% occupancy). These results resolve the long-standing controversy surrounding the film structure and provide a basis for understanding and modeling film properties important for corrosion resistance.

Original language	English
Pages (from-to)	4282-4285
Number of pages	4
Journal	Physical Review Letters
Volume	79
Issue number	21
Publication status	Published - 1997
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

Cite this

@article{b58de5fb35c14a32bb02cc4f1045e072,

title = "Atomic structure of the passive oxide film formed on iron",

abstract = "We have used x-ray scattering to measure the structure of the passive oxide film formed at high anodic potentials on Fe(110) and Fe(001). The crystalline film has a small crystallite size (≈50 {\AA}) and is oriented with the substrate. The film structure is based on Fe3O4, but with cation vacancies on octahedral and tetrahedral sites (80% and 66% occupancies, respectively) and with cations occupying octahedral interstitial sites (12% occupancy). These results resolve the long-standing controversy surrounding the film structure and provide a basis for understanding and modeling film properties important for corrosion resistance.",

author = "Toney, {Michael F.} and Davenport, {Alison J.} and Oblonsky, {Lucy J.} and Ryan, {Mary P.} and Vitus, {Carissima M.}",

year = "1997",

language = "English",

volume = "79",

pages = "4282--4285",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society (APS)",

number = "21",

}

TY - JOUR

T1 - Atomic structure of the passive oxide film formed on iron

AU - Toney, Michael F.

AU - Davenport, Alison J.

AU - Oblonsky, Lucy J.

AU - Ryan, Mary P.

AU - Vitus, Carissima M.

PY - 1997

Y1 - 1997

N2 - We have used x-ray scattering to measure the structure of the passive oxide film formed at high anodic potentials on Fe(110) and Fe(001). The crystalline film has a small crystallite size (≈50 Å) and is oriented with the substrate. The film structure is based on Fe3O4, but with cation vacancies on octahedral and tetrahedral sites (80% and 66% occupancies, respectively) and with cations occupying octahedral interstitial sites (12% occupancy). These results resolve the long-standing controversy surrounding the film structure and provide a basis for understanding and modeling film properties important for corrosion resistance.

AB - We have used x-ray scattering to measure the structure of the passive oxide film formed at high anodic potentials on Fe(110) and Fe(001). The crystalline film has a small crystallite size (≈50 Å) and is oriented with the substrate. The film structure is based on Fe3O4, but with cation vacancies on octahedral and tetrahedral sites (80% and 66% occupancies, respectively) and with cations occupying octahedral interstitial sites (12% occupancy). These results resolve the long-standing controversy surrounding the film structure and provide a basis for understanding and modeling film properties important for corrosion resistance.

UR - http://www.scopus.com/inward/record.url?scp=0000689236&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0000689236

SN - 0031-9007

VL - 79

SP - 4282

EP - 4285

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

ER -

Atomic structure of the passive oxide film formed on iron

Abstract

ASJC Scopus subject areas

Fingerprint

Cite this