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Title: Characterization of a Fe/Y{sub 2}O{sub 3} metal/oxide interface using neutron and x-ray scattering

Abstract

The structure of metal/oxide interfaces is important to the radiation resistance of oxide dispersion-strengthened steels. We find evidence of gradual variations in stoichiometry and magnetization across a Fe/Y{sub 2}O{sub 3} metal/oxide heterophase interface using neutron and x-ray reflectometry. These findings suggest that the Fe/Y{sub 2}O{sub 3} interface is a transitional zone approximately ∼64 Å-thick containing mixtures or compounds of Fe, Y, and O. Our results illustrate the complex chemical and magnetic nature of Fe/oxide interfaces and demonstrate the utility of combined neutron and x-ray techniques as tools for characterizing them.

Authors:
;  [1];  [2];  [3];  [1];  [3];  [4];  [2]
  1. Lujan Neutron Scattering Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  2. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
  3. (United States)
  4. Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
Publication Date:
OSTI Identifier:
22311188
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; APPROXIMATIONS; ELECTRIC UTILITIES; GAS UTILITIES; INTERFACES; IRON; MAGNETIZATION; METALS; MIXTURES; NEUTRON DIFFRACTION; STEELS; STOICHIOMETRY; TOOLS; VARIATIONS; X RADIATION; X-RAY DIFFRACTION; YTTRIUM OXIDES; ZONES

Citation Formats

Watkins, E. B., Majewski, J., E-mail: demkowicz@mit.edu, E-mail: jarek@lanl.gov, Kashinath, A., Computational Modeling Technology, Aramco Research Center—Boston, Cambridge, Massachusetts 02139, Wang, P., Intel Corporation, Hillsboro, Oregon, 97006, Baldwin, J. K., and Demkowicz, M. J., E-mail: demkowicz@mit.edu, E-mail: jarek@lanl.gov. Characterization of a Fe/Y{sub 2}O{sub 3} metal/oxide interface using neutron and x-ray scattering. United States: N. p., 2014. Web. doi:10.1063/1.4891432.
Watkins, E. B., Majewski, J., E-mail: demkowicz@mit.edu, E-mail: jarek@lanl.gov, Kashinath, A., Computational Modeling Technology, Aramco Research Center—Boston, Cambridge, Massachusetts 02139, Wang, P., Intel Corporation, Hillsboro, Oregon, 97006, Baldwin, J. K., & Demkowicz, M. J., E-mail: demkowicz@mit.edu, E-mail: jarek@lanl.gov. Characterization of a Fe/Y{sub 2}O{sub 3} metal/oxide interface using neutron and x-ray scattering. United States. doi:10.1063/1.4891432.
Watkins, E. B., Majewski, J., E-mail: demkowicz@mit.edu, E-mail: jarek@lanl.gov, Kashinath, A., Computational Modeling Technology, Aramco Research Center—Boston, Cambridge, Massachusetts 02139, Wang, P., Intel Corporation, Hillsboro, Oregon, 97006, Baldwin, J. K., and Demkowicz, M. J., E-mail: demkowicz@mit.edu, E-mail: jarek@lanl.gov. Mon . "Characterization of a Fe/Y{sub 2}O{sub 3} metal/oxide interface using neutron and x-ray scattering". United States. doi:10.1063/1.4891432.
@article{osti_22311188,
title = {Characterization of a Fe/Y{sub 2}O{sub 3} metal/oxide interface using neutron and x-ray scattering},
author = {Watkins, E. B. and Majewski, J., E-mail: demkowicz@mit.edu, E-mail: jarek@lanl.gov and Kashinath, A. and Computational Modeling Technology, Aramco Research Center—Boston, Cambridge, Massachusetts 02139 and Wang, P. and Intel Corporation, Hillsboro, Oregon, 97006 and Baldwin, J. K. and Demkowicz, M. J., E-mail: demkowicz@mit.edu, E-mail: jarek@lanl.gov},
abstractNote = {The structure of metal/oxide interfaces is important to the radiation resistance of oxide dispersion-strengthened steels. We find evidence of gradual variations in stoichiometry and magnetization across a Fe/Y{sub 2}O{sub 3} metal/oxide heterophase interface using neutron and x-ray reflectometry. These findings suggest that the Fe/Y{sub 2}O{sub 3} interface is a transitional zone approximately ∼64 Å-thick containing mixtures or compounds of Fe, Y, and O. Our results illustrate the complex chemical and magnetic nature of Fe/oxide interfaces and demonstrate the utility of combined neutron and x-ray techniques as tools for characterizing them.},
doi = {10.1063/1.4891432},
journal = {Applied Physics Letters},
number = 4,
volume = 105,
place = {United States},
year = {Mon Jul 28 00:00:00 EDT 2014},
month = {Mon Jul 28 00:00:00 EDT 2014}
}