## Phase Transformations in MaterialsFor 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 127

The result of these investigations is that in a diagram of pulling speed V versus

a small amplitude perturbation of the interface at a

The result of these investigations is that in a diagram of pulling speed V versus

**wavelength**A there exists a closed curve of neutral stability. Fig. 2-20. At fixed V,a small amplitude perturbation of the interface at a

**wavelength**on that curve ...Page 136

Numerical study of cellular

ramp in the thermal gradient field. A high thermal gradient on the side

approximately normal to the interface keeps the interface flat, the smaller gradient

in the ...

Numerical study of cellular

**wavelength**selection at the interface by introducing aramp in the thermal gradient field. A high thermal gradient on the side

approximately normal to the interface keeps the interface flat, the smaller gradient

in the ...

Page 157

These results strongly suggest that the question of

be considered from a different point of view. It is known that a band of steady-

state solutions exists in directional solidification beyond the instability threshold

and ...

These results strongly suggest that the question of

**wavelength**selection shouldbe considered from a different point of view. It is known that a band of steady-

state solutions exists in directional solidification beyond the instability threshold

and ...

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### Contents

List of Symbols and Abbreviations | 3 |

Contents | 4 |

Prof Yves J M Brechet Dr Reinhard Kampmann | 5 |

Copyright | |

12 other sections not shown

### Common terms and phrases

Acta Metall alloys anisotropy approximation atoms behavior binary Binder Cahn calculated 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 Kurz Landau Langer lattice Lebowitz length Lett linear liquid magnetic materials mechanism metastable microstructure mixtures Monte Carlo Murch nucleation order parameter particles phase diagram phase separation phase transitions Phvs 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 surface temperature ternary theory thermal thermodynamic tion tracer diffusion transformation tricritical point ture two-phase undercooling vacancy velocity volume fraction Wagner wavelength