Results 171 to 180 of about 8,749,731 (254)

Computer simulation of grain growth—V. Abnormal grain growth

Acta Metallurgica, 1985
Abstract 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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The effect of grain boundary edges on grain growth and grain growth stagnation

Materials Science and Engineering: A, 1989
Abstract The effect of grain boundary edges on grain growth kinetics has been considered by an extension of Beck's treatment of primary grain growth. It is found that the effect of edges is important only for very small grain sizes. The effect of edge particles on grain growth stagnation is treated by a method analogous to Zener's treatment.
T.O. Saetre, N. Ryum, O. Hunderi
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Scaling Behavior of Grain-Rotation-Induced Grain Growth

Physical Review Letters, 2002
Recent 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., Yamakov, V., Wolf, D., Phillpot, S. R.   +3 more
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Grain-Boundary Migration and Grain Growth

Metal Science, 1974
AbstractThe 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.
openaire   +1 more source

Carbon emissions, energy consumption and economic growth: Evidence from the agricultural sector of China's main grain-producing areas.

Science of the Total Environment, 2019
China is currently the world's largest carbon emitter. As a large agricultural country, understanding the relationship between carbon emissions, economic growth and energy consumption in the agricultural sector can contribute to achieving the sustainable
Lu Zhang, Jiaxing Pang, Xingpeng Chen, Zhongmingnan Lu   +3 more
semanticscholar   +1 more source

Grain Growth in Sintered Uranium Dioxide: II, Columnar Grain Growth

Journal of the American Ceramic Society, 1962
Evidence is presented which shows that columnar grains can be induced to grow in high‐density sintered uranium dioxide specimens by applying a steep temperature gradient at temperatures above 1700°C but below the melting point of 2800°C.
J. R. MacEWAN, V. B. LAWSON
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Grain Size Distributions in Normal Grain Growth

Practical Metallography, 2010
Abstract An analytical distribution function characterising the grain sizes of polycrystalline microstructures is presented. Contrary to standard mathematical probability functions that are still often used for description of experimentally obtained size distributions, this one is based on a statistical mean-field theory of grain growth ...
Dana Zöllner, Peter Streitenberger
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A rapid monitoring of NDVI across the wheat growth cycle for grain yield prediction using a multi-spectral UAV platform.

Plant Science, 2019
Wheat improvement programs require rapid assessment of large numbers of individual plots across multiple environments. Vegetation indices (VIs) that are mainly associated with yield and yield-related physiological traits, and rapid evaluation of canopy ...
Muhammad Adeel Hassan, Mengjiao Yang, A. Rasheed, Guijun Yang, M. Reynolds, X. Xia, Yonggui Xiao, Zhonghu He   +7 more
semanticscholar   +1 more source

Recent advances in the kinetics of normal/abnormal grain growth: a review

Archives of Civil and Mechanical Engineering, 2021
Fateme Najafkhani, S. Kheiri, B. Pourbahari, H. Mirzadeh   +3 more
semanticscholar   +1 more source

Recrystallization and Grain Growth

Encyclopedia of Aluminum and Its Alloys, 2004
Recrystallization occurs in all heating processes of aluminum alloys subjected to hot or cold deformation. The chemical, physical and mechanical property of aluminum alloys is dependent on recrystallization and grain growth.
W. Mao
semanticscholar   +1 more source