WebGrain boundaries (GBs) in nanocrystalline thermoelectrics cause desirable reduction in the thermal conductivity by scattering phonons, but often lead to unwanted loss in the electrical conductivity by scattering charge carriers. Therefore, modifying GBs to suppress their electrical resistivity plays a pivotal role in the enhancement of ... WebJul 1, 2024 · Grain boundaries (GBs) in metals usually increase electrical resistivity due to their distinct atomic arrangement compared to the grain interior. While the GB structure has a crucial influence on ...
Wetting of grain boundary triple junctions by intermetallic
WebAbstract While graphene grain boundaries (GBs) are well characterized experimentally, their influence on transport properties is less understood. As revealed here, phononic thermal transport is vulnerable to GBs even when they are ultra-narrow and aligned along the temperature gradient direction. WebApr 13, 2024 · The paper studies the mechanisms of plastic relaxation and mechanical response depending on the concentration of Cu atoms at grain boundaries (GBs) in … flow by oxygen
Growth and Grain Boundaries in 2D Materials ACS Nano
WebOct 26, 2024 · Grain boundaries (GBs) in metals usually increase electrical resistivity due to their distinct atomic arrangement compared to the grain interior. While the GB structure has a crucial influence on the electrical properties, its relationship with resistivity is poorly understood. Here, we perform a sy … WebJan 3, 2024 · In the case of triple junctions of grain boundaries, the morphology of the wetting phase, in contrast to the dislocation, is more like a three-sided prism, with GBs at its vertices. The second phase, wetting the grain boundaries, can be either liquid or solid [ 24 , … WebApr 12, 2024 · Using first-principles density functional calculations, we investigate the structure and properties of previously unstudied grain boundaries (GBs) in the solar … flow-by oxygen