Results 231 to 240 of about 2,372,883 (290)
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American Journal of Physics, 1957
The aim of the following work is to clarify the definitions of the order of phase transformations, in the case of systems composed of only one substance. First- and second-order phase transformations are discussed with the help of geometrical arguments applied to the intersection of free energy functions.
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The aim of the following work is to clarify the definitions of the order of phase transformations, in the case of systems composed of only one substance. First- and second-order phase transformations are discussed with the help of geometrical arguments applied to the intersection of free energy functions.
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1999
Abstract This chapter describes some of the most essential tools in metallurgy and what they reveal about the structure, composition, and processing requirements of steel. It begins by identifying important details in the constitutional diagram of iron-cementite.
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Abstract This chapter describes some of the most essential tools in metallurgy and what they reveal about the structure, composition, and processing requirements of steel. It begins by identifying important details in the constitutional diagram of iron-cementite.
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2021
In the above, a phase transition was viewed as resulting from changing a control parameter, such as T or p, across a phase boundary, say a coexistence line, of the system’s phase diagram. In practice, such a transformation, of say a liquid phase into a crystal phase, will however require a considerable amount of molecular scale reorganization, and this
Marc Baus, Carlos F. Tejero
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In the above, a phase transition was viewed as resulting from changing a control parameter, such as T or p, across a phase boundary, say a coexistence line, of the system’s phase diagram. In practice, such a transformation, of say a liquid phase into a crystal phase, will however require a considerable amount of molecular scale reorganization, and this
Marc Baus, Carlos F. Tejero
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Displacive Phase Transformations
Solid State Phenomena, 2009Shear deformation and shuffling of atomic planes are elementary mechanisms of collective atomic motion that take place during displacive phase transformations. General displacements of atomic planes are examined, i.e. -surface type calculations extensively used for the stacking faults and crystal dislocations are applied to single plane shuffling and ...
Václav Paidar, Andriy Ostapovets
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Science, 2014
Structural studies suggest a route to improve the performance of rechargeable batteries. [Also see Research Article by Liu et al. ]
Owen, John R., Hector, Andrew L.
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Structural studies suggest a route to improve the performance of rechargeable batteries. [Also see Research Article by Liu et al. ]
Owen, John R., Hector, Andrew L.
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2019
This chapter examines system change: the interval between an autocratic system and a new consolidated democracy. This transformation can be differentiated in to three phases: (1) the end of the autocratic system, (2) the institutionalization of democracy, and (3) the consolidation of democracy.
Wolfgang Merkel, Lea Heyne
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This chapter examines system change: the interval between an autocratic system and a new consolidated democracy. This transformation can be differentiated in to three phases: (1) the end of the autocratic system, (2) the institutionalization of democracy, and (3) the consolidation of democracy.
Wolfgang Merkel, Lea Heyne
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Phase Equilibria, Phase Diagrams and Phase Transformations
2007Computational tools allow material scientists to model and analyze increasingly complicated systems to appreciate material behavior. Accurate use and interpretation however, requires a strong understanding of the thermodynamic principles that underpin phase equilibrium, transformation and state.
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Martensitic Phase Transformation
2020This chapter provides a summary of basic knowledge on martensitic phase transformation in general and in steels, in particular. Besides the thermodynamic aspects of martensitic phase transformation, the different transformation path’s (direct γ to α’, direct γ to e, direct e to α’ and indirect γ to e to α’) occurring in steels are described in detail ...
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