Results 81 to 90 of about 79,749 (313)
Predictive theory for the grain boundary character distribution
, 2022 S.279-285Mesoscale experiment and simulation permit harvesting information about both geometric features and texture in material microstructures. The grain boundary character distribution (GBCD) is an empirical distribution of the relative length (in 2D)
Epshteyn, Yekaterina +6 more
core +1 more source
Advanced Engineering Materials, EarlyView.Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi +2 more
wiley +1 more source
Nuclear Materials and Energy, 2017 The diffusion process of hydrogen and helium in plasma-facing material depends on the grain boundary structures. Whether a grain boundary accelerates or limits the diffusion speed of these impurity atoms is not well understood.
Atsushi M. Ito +3 more
doaj +1 more source
, 2013 In two-dimensional polycrystalline graphene, two angular degrees of freedom (DOF) are needed to define a general grain boundary (GB): the misorientation of two grains and the rotation of the boundary line.
Wu JT(吴江涛) +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm +3 more
wiley +1 more source
Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics
Advanced Engineering Materials, EarlyView.Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost +4 more
wiley +1 more source
Effects of helium and vacancy in Ni symmetric tilt grain boundaries by first-principles
Nuclear Materials and EnergyThe vacancy and helium effects on eight low-Σ symmetric tilt grain boundaries (STGBs) of Ni were investigated by first-principles calculations. The simulations demonstrate that vacancies in Ni matrix could diffuse easily to the grain boundary and helium ...
Yiren Wang +4 more
doaj +1 more source
Ostwald Ripening of Diffusion-Limited Small-Size Precipitates at Grain Boundaries [PDF]
Журнал нано- та електронної фізики, 2012 The paper describes a theoretical study of the Ostwald ripening of two-dimensional small-size precipitates of a newly formed phase at the grain boundary of finite thickness, taking into account the diffusion of impurity atoms from the grain interior to ...
A.V. Koropov
doaj
The Kapitza Resistance across Grain Boundary by Molecular Dynamics Simulation
, 2006 Nonequilibrium molecular dynamics (NEMD) simulations are performed to calculate thermal boundary resistance that arises from heat flow across Si grain boundary.
Tang, QH (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, 15 Beisihuanxi Rd, Beijing 100080, Peoples R China. +2 more
core +1 more source
Electronic transport through ordered and disordered graphene grain boundaries [PDF]
, 2013 The evolution of electronic wave packets (WPs) through grain boundaries (GBs) of various structures in graphene was investigated by the numerical solution of the time-dependent Schrödinger equation. WPs were injected from a simulated STM tip placed above
Kim, Yong-Sung +12 more
core +1 more source