support of the German Federal Ministry of Education and Research within the NanoMatFutur project“MatAM-Design of additively manufactured highperformance alloys for automotive applications”(Project ID:03XP0264).
Additively manufactured(AM)metals exhibit highly complex microstructures,particularly in terms of grain morphology which typically features heterogeneous grain size distribution,irregular and anisotropic grain shapes,...
sponsored by a grant from the Office of Naval Research Aero Structures&Materials program,USA through Grant Number:N00014-20-1-4004;supported by the National Science Foundation(NSF)grant number OAC 1920103;Computational support for this work is also provided by an AFOSR DURIP grant FA9550-21-1-0303.
Image-based micromechanical models,necessary for the development of structure-property-response relations,are far from mature for complex microstructures with multi-modal distributions of morphological and crystallogr...
supported by the US Department of Energy award No.DE-SC0020180;supported by the U.S.National Science Foundation under Grant No.DMR 2002860.
Grain boundary solute segregation influencesmost bulk material properties,and understanding solute thermodynamics at grain boundaries is critical for engineering them.However,the vast grain boundary space in polycryst...
supported by the Fundamental Research Funds for the Central Universities (No.G2022WD01007);the National Natural Science Foundation of China (Nos.11874313,51971081,and 52172194);the Shenzhen Science and Technology Innovation Plan (No.KQTD20200820113045081);State Key Lab of Advanced Welding and Joining,Harbin Institute of Technology.
SnSe exhibits excellent thermoelectric performance in both n-and p-type single crystals,but its n-type polycrystals are restricted because of the lower electrical conductivity.Here,we dually introduced rare earth elem...
Crystallographic texturing enables the design of piezoelectric polycrystals that outperform traditional random polycrystals by exhibiting outstanding piezoelectric properties.In this work,phase-field modeling and comp...
The authors acknowledge support from the Institute for Basic Science(IBS-R019-D1);South Korea,the Chinese Academy of Sciences,and the Strategic Priority Research Program of the Chinese Academy of Sciences(XDB30000000),P.R.China.
In the epitaxial growth of two-dimensional(2D)materials on substrates,2D polycrystals with various shapes have been broadly observed,but their formation mechanisms are still highly elusive.Here we present a complete s...
Modeling of ductile fracture in polycrystalline structures is challenging,since it requires integrated modeling of cracks,crystal plasticity,and grains.Here we extend the typical phase-field framework to the situation...
L.Z.acknowledges support from the Hong Kong Research Grants Council General Research Fund 16301720;J.H.acknowledges support from CityU in the form of a Start-up Grant 7200667 and a Strategic Research Grant 7005466;D.J.S.and Y.X.acknowledge support from the Hong Kong Research Grants Council Collaborative Research Fund C1005-19G;D.J.S.also acknowledges partial support from the US Army Research Office under Grant Number W911NF-19-1-0263.
Grain boundary(GB)dynamics are largely controlled by the formation and motion of disconnections(with step and dislocation characters)along with the GB.The dislocation character gives rise to shear coupling;i.e.the rel...
This research was supported by Russian Science Foundation under Grant 19-72-30004.
In this paper,the dependencies of Young's modulus and attenuation decrement on samarium sulfide polycrystals(SmS)under various annealing temperatures are studied by the piezoelectric ultrasonic composite oscillator te...
supported by the Basic Science Center Project of Natural Science Foundation of China(51788104);the National Key R&D Program of China(2018YFB0703603).
Eco-friendly tin sulfide(SnS)has attracted increasing attention in the thermoelectric community because of its elemental abundance and analogous crystal structure to SnSe as a new thermoelectric material.However,so fa...