Defect-interface interactions

IJ Beyerlein, MJ Demkowicz, A Misra… - Progress in Materials …, 2015 - Elsevier
Nanostructured materials contain an extremely high density of interfaces. The properties of
these materials when exposed to extreme conditions of radiation dose, stress, deformation …

Deformation‐induced supersaturation in immiscible material systems during high‐pressure torsion

KS Kormout, R Pippan… - Advanced Engineering …, 2017 - Wiley Online Library
The review focuses on the supersaturation process of immiscible elements induced by high‐
pressure torsion deformation. A variety of investigated material systems offers the systematic …

High strength and thermal stability of bulk Cu/Ta nanolamellar multilayers fabricated by cross accumulative roll bonding

LF Zeng, R Gao, QF Fang, XP Wang, ZM Xie, S Miao… - Acta Materialia, 2016 - Elsevier
Abstract Bulk Cu/Ta nanolamellar multilayers with an individual layer thickness from several
micrometers down to 50 nm were successfully fabricated via a combination of cross …

[HTML][HTML] Microstructural evolution of electrodes in sintering of multi-layer ceramic capacitors (MLCC) observed by synchrotron X-ray nano-CT

G Okuma, N Saito, K Mizuno, Y Iwazaki, H Kishi… - Acta Materialia, 2021 - Elsevier
Synchrotron X-ray nano computed tomography was used to investigate the microstructural
evolution during co-sintering of multi-layer ceramic capacitors (MLCC) consisting of Ni …

The effect of annealing on trapped copper oxides in particle-particle interfaces of cold-sprayed Cu coatings

J Tam, B Yu, W Li, D Poirier, JG Legoux… - Scripta Materialia, 2022 - Elsevier
Cold-sprayed Cu coatings are known to have low ductility as the microstructure is composed
of dynamically recrystallized fine grains, as well as larger crystals with high dislocation …

Stability in thin film multilayers and microlaminates: the role of free energy, structure, and orientation at interfaces and grain boundaries

AC Lewis, D Josell, TP Weihs - Scripta Materialia, 2003 - Elsevier
In polycrystalline multilayer systems, the free energies of the interfaces and grain
boundaries will determine the relative stability of each layer as well as the overall stability of …

Phase field study of precipitate rafting under a uniaxial stress

MP Gururajan, TA Abinandanan - Acta Materialia, 2007 - Elsevier
We examine rafting of two-phase microstructures under a uniaxial applied stress, a process
in which a mismatch in elastic moduli (elastic inhomogeneity) plays a central role. For this …

[HTML][HTML] On the process of co-deformation and phase dissolution in a hard-soft immiscible CuCo alloy system during high-pressure torsion deformation

A Bachmaier, J Schmauch, H Aboulfadl, A Verch… - Acta Materialia, 2016 - Elsevier
In this study, dual phase Cusingle bondCo composites with a total immiscibility in the solid
state and a very different initial phase strength are deformed by severe plastic deformation …

Synchrotron X‐ray multiscale tomography: Visualization of heterogeneous microstructures and defects in ceramics

G Okuma, F Wakai - Journal of the American Ceramic Society, 2024 - Wiley Online Library
Synchrotron X‐ray multiscale tomography is a three‐dimensional (3D) imaging method that
combines microtomography and nanotomography to perform a high spatial resolution …

Domain coarsening in viscous sintering as a result of topological pore evolution

G Okuma, S Tanaka, F Wakai - Journal of the European Ceramic Society, 2022 - Elsevier
The microstructure evolution in 3D was studied by X-ray microtomography to reveal the
relation between topology of pore networks and characteristic length in viscous sintering …