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Coupling between grain growth and grain rotation
Applied Physics Letters, 2007Grain boundary motion during grain growth or recrystallization is considered as a diffusion process of atomic movement across the boundary. It can be accompanied by subgrain rotation or nanograin rotation. However, grain boundary migration can be achieved also by dislocation motion or creep.
Rath, B., Winning, M., Li, J.
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The in-vitro “growth” of gold grains
Geology, 2015Gold colloids, octahedral platelets, and foils, directly and indirectly formed from the reduction of soluble Au(I) thiosulfate and Au(III) chloride complexes by iron-oxidizing bacteria, cyanobacteria, and sulfate-reducing bacteria, were combined in an experimental system.
Shuster, Jeremiah, Southam, Gordon
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Computer simulation of grain growth—V. Abnormal grain growth
Acta Metallurgica, 1985Abstract Monte Carlo computer simulation techniques have been utilized to investigate abnormal grain growth in a two dimensional matrix. The growth of abnormally large grains is modelled under two conditions: 1. (a) where the driving force is provided solely by curvature and 2.
D.J Srolovitz, G.S Grest, M.P Anderson
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How Grain Growth Stops: A Mechanism for Grain-Growth Stagnation in Pure Materials
Science, 2010Taking the Rough with the Smooth Even with extensive annealing at high temperatures, most polycrystalline materials will not become a perfect single crystal, which would represent the thermodynamically preferred state. The stability of the polycrystalline state has been attributed to the presence of impurities that accumulate at ...
Elizabeth A, Holm, Stephen M, Foiles
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Scaling Behavior of Grain-Rotation-Induced Grain Growth
Physical Review Letters, 2002Recent investigations of grain growth in nanocrystalline materials have revealed a new growth mechanism: grain-rotation-induced grain coalescence. Based on a simple model employing a stochastic theory and using computer simulations, here we investigate the coarsening of a polycrystalline microstructure due solely to the grain-rotation coalescence ...
Moldovan, D. +3 more
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Grain-Boundary Migration and Grain Growth
Metal Science, 1974AbstractThe principles of grain growth are reviewed and grain-boundary migration is discussed in this context. The specification of the driving force for grain growth on the basis of microstructural parameters is one of the central problems in grain-growth kinetics.
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Annual Review of Materials Research, 1990
in the average crystal orientation and can even result in epitaxial films. It is therefore not surprising that grain growth can profoundly affect the mechanical, electrical, and chemical properties of thin films. In this article the mechanisms and modes of grain growth in thin films will be reviewed.
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in the average crystal orientation and can even result in epitaxial films. It is therefore not surprising that grain growth can profoundly affect the mechanical, electrical, and chemical properties of thin films. In this article the mechanisms and modes of grain growth in thin films will be reviewed.
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Grain growth in three dimensions depends on grain topology
Physical Review Letters, 1993While the growth rate of the average volume in a three-dimensional polycrystal is well understood, the growth rates of individual grains (which determine material properties through the topological and volume distributions) are not known. Using a three-dimensional Q-state Potts model simulation, I find that the average canonical growth rate of a grain ...
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Acta Materialia, 2012
Abstract In this paper we report on 2-D phase-field simulations in order to study the influence of the growth kinetics and the surface energy on the growth behaviour of grains during solidification of silicon. We investigated in detail the growth of two grains.
G. Cantù, A. Popescu, W. Miller
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Abstract In this paper we report on 2-D phase-field simulations in order to study the influence of the growth kinetics and the surface energy on the growth behaviour of grains during solidification of silicon. We investigated in detail the growth of two grains.
G. Cantù, A. Popescu, W. Miller
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Il Nuovo Cimento C, 1982
Grain growth is studied in polycrystalline ice, consisting of elongated grains, of (200÷300) μm mean width\(\bar w\) and (2÷3) mm mean length\(\bar l\). The samples are annealed at different temperatures, between 0°C and −10°C. It is found that\(\bar l\) is not affected by annealing, while\(\bar w\) increases with the annealing time.
L. Levi, E. A. Ceppi
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Grain growth is studied in polycrystalline ice, consisting of elongated grains, of (200÷300) μm mean width\(\bar w\) and (2÷3) mm mean length\(\bar l\). The samples are annealed at different temperatures, between 0°C and −10°C. It is found that\(\bar l\) is not affected by annealing, while\(\bar w\) increases with the annealing time.
L. Levi, E. A. Ceppi
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