skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Non-uniform solute segregation at semi-coherent metal/oxide interfaces

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep13086· OSTI ID:1236769
 [1];  [2];  [3];  [3];  [4];  [5]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Idaho, Moscow, ID (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Michigan, Ann Arbor, MI (United States)
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The properties and performance of metal/oxide nanocomposites are governed by the structure and chemistry of the metal/oxide interfaces. Here we report an integrated theoretical and experimental study examining the role of interfacial structure, particularly misfit dislocations, on solute segregation at a metal/oxide interface. We find that the local oxygen environment, which varies significantly between the misfit dislocations and the coherent terraces, dictates the segregation tendency of solutes to the interface. Depending on the nature of the solute and local oxygen content, segregation to misfit dislocations can change from attraction to repulsion, revealing the complex interplay between chemistry and structure at metal/oxide interfaces. These findings indicate that the solute chemistry at misfit dislocations is controlled by the dislocation density and oxygen content. As a result, fundamental thermodynamic concepts – the Hume-Rothery rules and the Ellingham diagram – qualitatively predict the segregation behavior of solutes to such interfaces, providing design rules for novel interfacial chemistries.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Materials at Irradiation and Mechanical Extremes (CMIME); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1236769
Report Number(s):
LA-UR-15-25964; srep13086
Journal Information:
Scientific Reports, Vol. 5; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

References (40)

Metal-non-metal and other interfaces: the role of image interactions journal July 1985
Geometrical and Compositional Structure at Metal-Oxide Interfaces: MgO on Fe(001) journal July 2001
Recent Developments in Irradiation-Resistant Steels journal August 2008
Fundamental Influence of C on Adhesion of the A l 2 O 3 / A l Interface journal December 2002
Segregation Phenomena at Thermally Grown Al 2 O 3 /Alloy Interfaces journal August 2008
Analysis of Cu segregation to oxide–metal interface of Ni-base alloy by HX-PES journal January 2008
An Atomic Perspective of a Doped Metal-Oxide Interface , journal August 2002
Massive Interfacial Reconstruction at Misfit Dislocations in Metal/Oxide Interfaces journal October 2014
Nanoscale studies of segregation at coherent heterophase interfaces inα-Fe based systems journal May 2004
Subnanoscale Studies of Segregation at Grain Boundaries: Simulations and Experiments journal August 2002
Recycling Metals for the Environment journal November 1998
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Ab initiomolecular dynamics for liquid metals journal January 1993
Influence of sulfur on the adhesion of the nickel/alumina interface journal June 2003
Iron and its dilute substitutional solid solutions journal January 1972
The formation and evolution of oxide particles in oxide-dispersion-strengthened ferritic steels during processing journal April 2013
Nanoscale characterisation of ODS–Eurofer 97 steel: An atom-probe tomography study journal May 2010
The theory of metal - ceramic interfaces journal August 1996
Neutron reflection studies of titanium segregation to metal–ceramic interfaces journal June 1998
Iron Oxidation, Interfacial Expansion, and Buckling at the Fe / NiO ( 001 ) Interface journal March 2006
Interface adhesion: effects of plasticity and segregation journal November 1999
Adhesion, stability, and bonding at metal/metal-carbide interfaces: Al/WC journal February 2002
Y 2 O 3 Morphology in an Oxide Dispersion Strengthened FeAl Alloy Prepared by Mechanical Alloying journal January 1996
The stability of ionic crystal surfaces journal November 1979
Projector augmented-wave method journal December 1994
Generalized Gradient Approximation Made Simple journal October 1996
Quantifying the low-energy limit and spectral resolution in valence electron energy loss spectroscopy journal January 2013
Linking Interfacial Step Structure and Chemistry with Locally Enhanced Radiation-Induced Amorphization at Oxide Heterointerfaces journal April 2014
Orientation-specific amorphization and intercalated recrystallization at ion-irradiated SrTiO 3 /MgO interfaces journal August 2014
Mapping strain modulated electronic structure perturbations in mixed phase bismuth ferrite thin films journal January 2015
Nanometer-scale solute segregation at heterophase interfaces and microstructural evolution of molybdenum nitride precipitates journal October 2001
Subnanometer three-dimensional atom-probe investigation of segregation at MgO/Cu ceramic/metal heterophase interfaces journal October 2001
The experimental research for production of hydrogen from n-octane through partially oxidizing and steam reforming method journal August 2001
Metal–ceramic interfaces studied with high-resolution transmission electron microscopy journal November 1999
Analysis of Gibbsian Segregation at Heterophase Cu-MnO Interfaces journal January 2004
Interfacial mixing of ultrathin Cr films grown on an Fe whisker journal January 1996
Adhesive energy and charge transfer for MgO/Cu heterophase interfaces journal September 1996
First Principles Simulation of a Ceramic / Metal Interface with Misfit journal April 2000
Interface Energy of Semicoherent Metal-Ceramic Interfaces journal November 2005
Effect of oxygen vacancies on adhesion at the Nb/Al2O3 and Ni/ZrO2 interfaces journal March 2008

Cited By (3)

Beyond Coherent Oxide Heterostructures: Atomic‐Scale Structure of Misfit Dislocations journal June 2019
Semicoherent oxide heterointerfaces: Structure, properties, and implications journal October 2019
Segregation and properties at curved vs straight (000) inversion boundaries in piezotronic ZnO bicrystals journal December 2019

Similar Records

Discontinuous segregation patterning across disconnections
Journal Article · Wed Jan 25 00:00:00 EST 2023 · Acta Materialia · OSTI ID:1236769

Influence of Chemistry and Misfit Dislocation Structure on Dopant Segregation at Complex Oxide Heterointerfaces
Journal Article · Mon Sep 24 00:00:00 EDT 2018 · Advanced Theory and Simulations · OSTI ID:1236769

On the mobility of carriers at semi-coherent oxide heterointerfaces
Journal Article · Thu Aug 17 00:00:00 EDT 2017 · Physical Chemistry Chemical Physics. PCCP · OSTI ID:1236769