Results 241 to 250 of about 85,735 (301)
Mechano-Electrochemical Synergy in Cellulose@MOF Scaffold-Based Asymmetric Electrolyte for Stable Solid-State Lithium Metal Batteries. [PDF]
Nanomicro LettFan W +5 more
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Rational Electrolyte Structure Engineering for Highly Reversible Zinc Metal Anode in Aqueous Batteries. [PDF]
Nanomicro LettZhuang Y +10 more
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Scripta Metallurgica, 1974
Abstract A simple equation is presented to describe the interdendritic spacing for dendritic growth from a super-heated alloy melt. It is then rationalized for a simple conceptual extreme: steady-state unidirectional growth from a liquid under a constant, positive, temperature gradient.
G.F. Bolling, D. Fainstein-Pedraza
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Abstract A simple equation is presented to describe the interdendritic spacing for dendritic growth from a super-heated alloy melt. It is then rationalized for a simple conceptual extreme: steady-state unidirectional growth from a liquid under a constant, positive, temperature gradient.
G.F. Bolling, D. Fainstein-Pedraza
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Steady-state dendritic crystal growth
Physical Review A, 1986We study the problem of velocity and shape selection in the growth of dendritic crystals. We demonstrate that the presence of surface tension destroys the Ivantsov family of solutions at all but a single velocity. This occurs at all undercoolings and for both two-dimensional and axisymmetric three-dimensional dendrites.
, Kessler, , Koplik, , Levine
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Physical Review A, 1986
We study the growth of dendritic crystals from a supersaturated solution in a channel geometry. This model provides a continuous interpolation between the Saffman-Taylor problem and the (two-dimensional) free-space dendrite. We derive an integral equation for the shape of steady-state propagating fingers, which we treat by discretizing the curve and ...
, Kessler, , Koplik, , Levine
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We study the growth of dendritic crystals from a supersaturated solution in a channel geometry. This model provides a continuous interpolation between the Saffman-Taylor problem and the (two-dimensional) free-space dendrite. We derive an integral equation for the shape of steady-state propagating fingers, which we treat by discretizing the curve and ...
, Kessler, , Koplik, , Levine
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Impurity effect on dendritic growth
Physical Review A, 1989We consider the effects of impurities on the velocity selection of a needle crystal, in the small thermal and solutal Peclet numbers. As in the case of the growth in a pure melt, steady solutions for needle crystals are found only if surface tension is anisotropic.
, Ben Amar M, , Pelcé
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Velocity selection in dendritic growth
Physical Review B, 1986We show that the velocity and shape of two-dimensional dendritic crystals can be determined by solving the steady-state evolution equation at finite surface tension. We find that in the zero undercooling limit, crystal anisotropy is necessary to obtain finite velocities. Furthermore, the "solvability" condition at zero anisotropy and small undercooling
, Kessler, , Levine
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Dendritic Growth Velocities in Microgravity
Physical Review Letters, 1994We measured dendritic tip velocities in pure succinonitrile (SCN) in microgravity, using a sequence of telemetered binary images sent to Earth from the space shuttle Columbia (STS-62). Growth velocities were measured as a function of the supercooling over the range 0.05-1.5 K.
, Glicksman, , Koss, , Winsa
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Dendritic growth of ZnS crystals
Acta Physica Academiae Scientiarum Hungaricae, 1965The dendritic growth of ZnS crystals in the form of long ribbons, plates and needles was observed when ZnS crystallized from liquid Ga. The cubic ribbons and plates propagated in the directions, the needles were hexagonal and their main propagation was parallel to the c-axis.
I. Bertóti +4 more
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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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