Phase Transformations in MaterialsG. Kostorz For all kinds of materials, phase transformations show common phenomena and mechanisms, and often turn a material, for example metals, multiphase alloys, ceramics or composites, into its technological useful form. The physics and thermodynamics of a transformation from the solid to liquid state or from one crystal form to another are therefore essential for creating high-performance materials. This handbook covers phase transformations, a general phenomenon central to understanding the behavior of materials and for creating high-performance materials. It will be an essential reference for all materials scientists, physicists and engineers involved in the research and development of new high performance materials. It is the revised and enhanced edition of the renowned book edited by the late P. Haasen in 1990 (Vol. 5, Materials Science and Technology). |
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Page 136
... gradient field . A high thermal gradient on the side approximately normal to the interface keeps the interface flat , the smaller gradient in the center allows for cells to develop . At fixed ramp profile a unique cell spacing is ...
... gradient field . A high thermal gradient on the side approximately normal to the interface keeps the interface flat , the smaller gradient in the center allows for cells to develop . At fixed ramp profile a unique cell spacing is ...
Page 178
... gradient . For the case of a pure metal , a radioactive tracer of the same metal is used . The result- ing diffusion coefficient is termed the tracer diffusion coefficient with the symbol D * . Because the tracer is chemically the same ...
... gradient . For the case of a pure metal , a radioactive tracer of the same metal is used . The result- ing diffusion coefficient is termed the tracer diffusion coefficient with the symbol D * . Because the tracer is chemically the same ...
Page 181
... gradient ( if present ) . X , is given by T grad T. When referring to diffu- sion in a temperature gradient it is usual to let Lig be expressed as q n Lig = Σ Q * Lik k = 1 where Q is called the " heat of transport " for species k ...
... gradient ( if present ) . X , is given by T grad T. When referring to diffu- sion in a temperature gradient it is usual to let Lig be expressed as q n Lig = Σ Q * Lik k = 1 where Q is called the " heat of transport " for species k ...
Contents
Contents | 4 |
France D21494 Geesthacht | 5 |
Chemical Potential | 11 |
Copyright | |
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Common terms and phrases
Acta Metall alloys anisotropy atoms behavior binary Binder Cahn Chem chemical chemical potential cluster coarsening composition concentration constant correlation factor critical crystal defect dendritic diffusion coefficient dynamics effects elastic equation equilibrium eutectic example experimental field Figure fluctuations Fratzl function Gibbs energy gradient grain boundary growth rate Helmholtz energy impurity interaction interface interstitial Ising model jump frequency kinetics Landau Langer lattice Lebowitz Lett linear liquid magnetic materials mechanism metastable microstructure mixtures Monte Carlo Murch nucleation order parameter particles phase diagram phase separation phase transitions Phys polymer precipitate quench radius random regime region scaling shown in Fig simulations solid solution solidification spacing spinodal curve spinodal decomposition stability structure sublattices supersaturation temperature theory thermal thermodynamic tion tracer diffusion transformation tricritical point two-phase undercooling vacancy velocity volume fraction Wagner wavelength