Results 251 to 260 of about 867,433 (306)
Some of the next articles are maybe not open access.
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.
openaire +1 more source
Grain Growth in Sintered Uranium Dioxide: II, Columnar Grain Growth
Journal of the American Ceramic Society, 1962Evidence 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
openaire +1 more source
Grain Size Distributions in Normal Grain Growth
Practical Metallography, 2010Abstract 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
openaire +1 more source
2020
Inhomogeneous material properties such as corrosion resistance, strength and creep can be found in cast or formed metals which are heat treated. The spatial variation comes from the gradient in grain sizes, which is a problem for any industry which forms/bends high strength metals such as in petrochemical refinery.
openaire +2 more sources
Inhomogeneous material properties such as corrosion resistance, strength and creep can be found in cast or formed metals which are heat treated. The spatial variation comes from the gradient in grain sizes, which is a problem for any industry which forms/bends high strength metals such as in petrochemical refinery.
openaire +2 more sources
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
openaire +2 more sources
The Elimination of Grains and Grain Boundaries in Grain Growth
Interface Science, 1997The topological changes that occur during coarsening of 2D and 3Dcellular structures, such as polycrystals, areinvestigated. Particular attention is given to the elimination ofgrain boundaries and grains with more than the minimum number oftopological elements.
A.C. Ferro, M.A. Fortes
openaire +1 more source
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.
openaire +1 more source
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.
openaire +1 more source
1987
A thermodynamic view is taken to explain how inclusions and lattice strains (developed when adjacent grains have slightly different lattice parameters) can be used to control grain growth in advanced ceramics. Experimental data are presented for the cases where A12O3 inclusions are used to inhibit normal grain growth in cubic ZrO2, ZrO2 inclusions ...
openaire +1 more source
A thermodynamic view is taken to explain how inclusions and lattice strains (developed when adjacent grains have slightly different lattice parameters) can be used to control grain growth in advanced ceramics. Experimental data are presented for the cases where A12O3 inclusions are used to inhibit normal grain growth in cubic ZrO2, ZrO2 inclusions ...
openaire +1 more source
Grain Growth in Sintered Uranium Dioxide: I, Equiaxed Grain Growth
Journal of the American Ceramic Society, 1962Grain growth was investigated in a UO 2 sinter of 94%) theoretical density over the temperature range 1555° to 2440°C. The results were in close, but not exact, agreement with a theoretical expression describing grain growth with a poly‐crystalline matrix.
openaire +1 more source
Grain Boundary Motion During Anisotropic Grain Growth
1994The relation between the properties of polycrystalline materials (such as strength, effective diffusivity, electrical conductivity, etc.) and the grain size distribution has motivated many attempts to characterize and ultimately control crystalline dimension.
A. Brokman, A. J. Vilenkin
openaire +1 more source