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Title: Three-dimensional imaging of dislocation dynamics during the hydriding phase transformation

Journal Article · · Nature Materials
DOI: https://doi.org/10.1038/nmat4842 · OSTI ID:1352877
ORCiD logo [1]; ORCiD logo [2];  [1];  [1];  [3];  [3];  [3];  [4];  [1];  [1]; ORCiD logo [1];  [1];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
  2. Canadian Nuclear Lab., Chalk River, ON (Canada). Fuel & Fuel Channel Safety Branch
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States). Photon Ultrafast Laser Science and Engineering Inst. (PULSE)

Crystallographic imperfections can significantly alter material properties and responses to external stimuli, including solute induced phase transformations and crystal growth and dissolution . Despite recent progress in imaging defects using both electron and x-ray techniques, in situ three-dimensional imaging studies of defect dynamics, necessary to understand and engineer nanoscale processes, remains challenging. Here, we report in situ three-dimensional imaging of defect dynamics during the hydriding phase transformation of individual palladium nanocrystals by Bragg Coherent Diffractive Imaging (BCDI) . During constant pressure experiments, we observed that the phase transformation begins after the nucleation of dislocations in large (300 nm) particles. The 3D dislocation network shows that dislocations are close to the phase boundary. The 3D phase morphology resolved by BCDI suggests that the hydrogen-rich phase is more similar to a spherical cap on the hydrogen-poor phase than the core-shell model commonly assumed. We substantiate this conclusion using 3D phase field modeling and demonstrate how phase morphology affects the critical size for dislocation nucleation. We determine the size dependence of the transformation pressure for large (150-300 nm) palladium nanocrystals using variable pressure experiments. Our results reveal a pathway for solute induced structural phase transformations in nanocrystals and demonstrate BCDI as a novel method for understanding dislocation dynamics in phase transforming systems at the nanoscale.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1352877
Journal Information:
Nature Materials, Journal Name: Nature Materials Journal Issue: 5 Vol. 16; ISSN 1476-1122
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (46)

Strain Accommodation during Phase Transformations in Olivine-Based Cathodes as a Materials Selection Criterion for High-Power Rechargeable Batteries journal March 2007
Surface properties of platinum and palladium journal May 1980
The H-Pd (hydrogen-palladium) System journal February 1994
A simple model for coherent equilibrium journal November 1984
The β → α phase transformation in palladium-hydrogen alloys journal November 1976
The Thermodynamics of Elastically Stressed Crystals book May 2004
Understanding silica-supported metal catalysts: Pd/silica as a case study journal October 2003
Thermodynamics of open two-phase systems with coherent interfaces: Application to metal–hydrogen systems journal January 2006
Trends in semiconductor defect engineering at the nanoscale journal November 2010
Mapping the dislocation sub-structure of deformed polycrystalline Ni by scanning microbeam diffraction topography journal May 2011
3D Imaging of Twin Domain Defects in Gold Nanoparticles journal May 2015
Miscibility Gap Closure, Interface Morphology, and Phase Microstructure of 3D Li x FePO 4 Nanoparticles from Surface Wetting and Coherency Strain journal September 2015
Defect Engineering in Cubic Cerium Oxide Nanostructures for Catalytic Oxidation journal July 2011
Rational Defect Introduction in Silicon Nanowires journal April 2013
Theory of Coherent Nucleation in Phase-Separating Nanoparticles journal May 2013
Single Particle Nanomechanics in Operando Batteries via Lensless Strain Mapping journal August 2014
Satellite radar interferometry: Two-dimensional phase unwrapping journal July 1988
Extending the methodology of X-ray crystallography to allow imaging of micrometre-sized non-crystalline specimens journal July 1999
Defective promise in photonics journal April 2002
Measurement of the displacement field of dislocations to 0.03 Å by electron microscopy journal May 2003
Avalanching strain dynamics during the hydriding phase transformation in individual palladium nanoparticles journal December 2015
Direct visualization of hydrogen absorption dynamics in individual palladium nanoparticles journal January 2017
High-resolution three-dimensional partially coherent diffraction imaging journal January 2012
Coherent diffraction imaging of nanoscale strain evolution in a single crystal under high pressure journal April 2013
Coherent X-ray diffraction imaging of strain at the nanoscale journal April 2009
Three-dimensional imaging of strain in a single ZnO nanorod journal December 2009
Differential stress induced by thiol adsorption on facetted nanocrystals journal September 2011
Uncovering the intrinsic size dependence of hydriding phase transformations in nanocrystals journal August 2013
In situ detection of hydrogen-induced phase transitions in individual palladium nanocrystals journal September 2014
Three-dimensional imaging of dislocation propagation during crystal growth and dissolution journal June 2015
Hydride formation thermodynamics and hysteresis in individual Pd nanocrystals with different size and shape journal September 2015
Thermodynamics of the hybrid interaction of hydrogen with palladium nanoparticles journal November 2015
Reconstructing solute-induced phase transformations within individual nanocrystals journal April 2016
Textures of Au, Pt and Pd/PdO nanoparticles thermally dewetted from thin metal layers on fused silica journal January 2014
Direct Observation of Individual Dislocations by X‐Ray Diffraction journal March 1958
Invited Article: A unified evaluation of iterative projection algorithms for phase retrieval journal January 2007
A combined nanoplasmonic and electrodeless quartz crystal microbalance setup journal December 2009
X-ray image reconstruction from a diffraction pattern alone journal October 2003
Application of optimization technique to noncrystalline x-ray diffraction microscopy: Guided hybrid input-output method journal August 2007
Bragg x-ray ptychography of a silicon crystal: Visualization of the dislocation strain field and the production of a vortex beam journal March 2013
Thermodynamics of Open Two-Phase Systems with Coherent Interfaces journal March 1995
Coherent X-ray diffraction investigation of twinned microcrystals journal October 2010
Signature of dislocations and stacking faults of face-centred cubic nanocrystals in coherent X-ray diffraction patterns: a numerical study journal April 2015
HYDROGEN IN METALS: Microstructural Aspects journal August 2006
The Palladium-Hydrogen System journal August 1991
High-resolution ab initio three-dimensional x-ray diffraction microscopy journal January 2006

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The self-healing of defects induced by the hydriding phase transformation in palladium nanoparticles journal November 2017
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Identifying Defects with Guided Algorithms in Bragg Coherent Diffractive Imaging journal August 2017
Bragg Coherent Diffractive Imaging of Zinc Oxide Acoustic Phonons at Picosecond Timescales journal August 2017
Nucleation-Controlled Plasticity of Metallic Nanowires and Nanoparticles journal July 2018
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Identifying Defects with Guided Algorithms in Bragg Coherent Diffractive Imaging journal August 2017
Bragg Coherent Diffractive Imaging of Zinc Oxide Acoustic Phonons at Picosecond Timescales journal August 2017
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Accurate, rapid identification of dislocation lines in coherent diffractive imaging via a min-max optimization formulation journal January 2018
Bragg coherent diffractive imaging of ferromagnetic nickel nanoparticles journal May 2018
Large plasmonic field enhancement on hydrogen-absorbing transition metals at lower frequencies: Implications for hydrogen storage, sensing, and nuclear fusion journal July 2019
Dynamic diffraction artefacts in Bragg coherent diffractive imaging journal February 2018
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