Results 271 to 280 of about 6,801,890 (343)
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Cellular and dendritic growth. II
Journal of Crystal Growth, 1974Abstract A theoretical model is developed to explain the variation in cellular or dendritic tip temperatures with velocity and temperature gradient. It is shown that the undercooling can be considered to arise as a result of build up of average solute concentration ahead of the growth front depending mainly on the imposed temperature gradient ...
M.H. Burden, J.D. Hunt
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Materials Science and Engineering, 1984
Free dendritic growth refers to the unconstrained development of crystals within a supercooled melt, which is the classical 'dendrite problem'. Great strides have been taken in recent years in both the theoretical understanding of dendritic growth and its experimental status. The development of this field will be sketched, showing that transport theory
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Free dendritic growth refers to the unconstrained development of crystals within a supercooled melt, which is the classical 'dendrite problem'. Great strides have been taken in recent years in both the theoretical understanding of dendritic growth and its experimental status. The development of this field will be sketched, showing that transport theory
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ACM SIGBIO Newsletter, 1992
We have developed an interactive tool for the construction and simulation of nervecell-models. Based on a semi-CAD platform, the program is able to build single objects in a described way and in a later stage to put them together for observation of their interactions.
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We have developed an interactive tool for the construction and simulation of nervecell-models. Based on a semi-CAD platform, the program is able to build single objects in a described way and in a later stage to put them together for observation of their interactions.
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Canadian Journal of Physics, 1951
Dendritic growth of large single crystals of lead is revealed by decanting the remaining liquid at any required stage of the process of solidification. The direction of dendritic growth was determined as a function of crystallographic orientation and direction of solidification.
F. Weinberg, Bruce Chalmers
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Dendritic growth of large single crystals of lead is revealed by decanting the remaining liquid at any required stage of the process of solidification. The direction of dendritic growth was determined as a function of crystallographic orientation and direction of solidification.
F. Weinberg, Bruce Chalmers
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Growth of noncrystallographic dendrites
Journal of Materials Research, 1992First time experimental evidence is presented for the steady state growth of dendrites away from their normal crystallographic growth directions. The evidence is shown for transparent dendrites in the succinonitrile system, which are induced to grow along wetting surfaces.
L.M. Fabietti, J.A. Sekhar
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2002
Many of the alloys used in practice, such as steel, aluminum-copper alloys, nickel-base and copper-base alloys, are single phase alloys, which means that the final product of solidification is a solid solution. Depending on the thermal and compositional field, cellular or, in most practical cases, dendritic morphology will occur.
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Many of the alloys used in practice, such as steel, aluminum-copper alloys, nickel-base and copper-base alloys, are single phase alloys, which means that the final product of solidification is a solid solution. Depending on the thermal and compositional field, cellular or, in most practical cases, dendritic morphology will occur.
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Dendritic and spheroidal growth
Acta Metallurgica, 1961Exact solutions to the diffusion equation are obtained which correspond to diffusion controlled growth of elliptical paraboloids (dendrites; forward growth with linear time dependence) and spheroids (growth with square root of time dependence). The elliptical dendrite includes as special cases the dendrite of circular cross-section and the dendrite ...
G Horvay, J.W Cahn
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Dendritic Crystal Growth Dynamics
41st Aerospace Sciences Meeting and Exhibit, 2003With considerable NASA support, the scientific community has learned much in recent decades about the process of dendritic crystal formation, particularly as an example of steady-state pattern formation. Recently, efforts here and elsewhere have shifted towards the study of the timevarying aspects of the process.
Jeffrey LaCombe +2 more
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Electrolytic Growth of Silver Dendrites
Science, 1964The growth rates of silver dendrites formed in narrow capillaries by electrodeposition under various physical conditions have been determined. Dissolution of such dendrites as well as their growth can be reliably controlled. This principle may be used in the design of components for adaptive electronic systems.
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Growth Mechanism of Si-Faceted Dendrites
Physical Review Letters, 2008The growth mechanism of Si-faceted dendrite was studied using an in situ observational technique. We directly observed the growth processes of Si-faceted dendrites from Si melts. It is found that triangular corners with an angle of 60 degrees are formed at the dendrite tip.
K, Fujiwara +3 more
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