| 词汇 | example_english_grain-boundary |
| 释义 | grain boundarycollocation in Englishmeanings of grainand boundaryThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with grain or boundary. grain noun uk /ɡreɪn/ us /ɡreɪn/ a seed or seeds from a plant, especially a plant like a grass such as rice ... See more at grain boundary noun[C] uk /ˈbaʊn.dər.i/ us /ˈbaʊn.dər.i/ a real or imagined line that marks the edge or limit ... See more at boundary Examples of grain boundaryThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. The curves depict the positions of the grainboundary at successive times. It represents the conservation of solute species at an interior point of the grainboundary. One of them is mean curvature motion for the grainboundary. The impingement data were obtained from measuring angles between adjacent grains, far from the grainboundary. In contrast to earlier work on diffusion-induced grainboundary motion, here we incorporate the elasticity system into the phase field model, which leads to a more accurate approximation. The system then models grainboundary motion under external stresses. In this latter version, the grainboundary has zero thickness. If the velocity of the grainboundary is always slow, then d will remain constant throughout the development. A strong grainboundary and grainlong-axis preferred orientation is shown by hornblende and biotite. Particles which cross the dust grainboundary are assumed to be absorbed. The reduction is based on the smallness of a parameter measuring the thickness of the grainboundary and the strength of the elastic interaction. In the zero angle case, that implies, among other things, that the grainboundary inside the film is approximately perpendicular to the face. In typical cases, this means that a new grainboundary approaching such an equilibrium region would be prevented from entering it. Along a given grainboundary, the direction is commonly observed to change from one location to another. In this set-up we have to take diffusion in grain boundaries into account such that the concentration satisfies a diffusion equation on the grainboundary. When heated at a specific temperature, the grainboundary migrates to reduce the surface energy and to heal the orientation mismatch. Associated with the grainboundary is a surface energy which gives rise to a thermodynamic restoring force. In order for the grainboundary to move, it must be assumed that the solute concentration is large enough to overcome an inhibiting effect associated with the groove angle. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of grain Go to the definition of boundary See other collocations with grain See other collocations with boundary |
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