Studies in Modern Thermodynamics
2 total works
The present theoretical and experimental knowledge of the time evolution of a system during solidification, not only in equilibrium, but also in nonequilibrium conditions, is summarized in this book. Such knowledge is of fundamental importance for the determination of the constitution of materials or of the technological conditions necessary to prepare materials with a desired structure. Emphasizing the importance of kinetic phase diagrams, the authors focus the attention of the reader on the problems connected with nonequilibrium conditions, that are encountered during real phase transformations.
A critical review of phenomenological and statistical theories of phase transformations and of mass and heat transport enables the reader to determine the range of applicability of concrete models for the description of the evolution of a given system. The book is supplemented with several less-known methods and results of phase characterization, including a detailed account of the Soviet school of T.A. Cherepanova which is not well known in the West.
The text also covers the modern research area of glasses and their preparation. The book should prove invaluable to research workers in the fields of materials research, solid state thermodynamics and the kinetics of phase transformations. It will prove useful for a postgraduate study in the field of advanced thermodynamics, and will be valuable to physical chemists, chemists and physicists who are interested in the theory of phase transformation kinetics. They will appreciate the introduction to the foundations of material processes and the description of the processes which take place during the preparation of new materials.
A critical review of phenomenological and statistical theories of phase transformations and of mass and heat transport enables the reader to determine the range of applicability of concrete models for the description of the evolution of a given system. The book is supplemented with several less-known methods and results of phase characterization, including a detailed account of the Soviet school of T.A. Cherepanova which is not well known in the West.
The text also covers the modern research area of glasses and their preparation. The book should prove invaluable to research workers in the fields of materials research, solid state thermodynamics and the kinetics of phase transformations. It will prove useful for a postgraduate study in the field of advanced thermodynamics, and will be valuable to physical chemists, chemists and physicists who are interested in the theory of phase transformation kinetics. They will appreciate the introduction to the foundations of material processes and the description of the processes which take place during the preparation of new materials.
Thermal Decomposition of Materials
by O.F. Shlensky, etc., L.N. Aksenov, and A.G. Shashkov
Published July 1991
In some new technological processes the heating and resulting transformation of substances takes place in fractions of a second. Such processes include, high-frequency heating of materials, plasma processing of materials, laser technology, etc. Traditional methods and standard equipment used in thermal analysis are for slow heating rates of the sample, viz., at about 2-20 K/min. Therefore, rapid chemical reactions with a characteristic time of about one second may escape the attention of the researcher. The purpose of this book is to explain problems regarding the micro- and macrokinetics of the thermolysis of substances and complex materials subjected to intensive heating. It is possible to carry out experiments at heating rates of more than 10 4 K/s with the new special quick response pulse heaters described. During such experiments several hitherto unknown rapid reactions and thermolysis processes of an explosive nature have been established. These reactions take place in a few seconds to a hundredth of a second. The book gives physical and mathematical models of thermolysis for all these processes.
It will be of interest to scientists dealing with thermodynamics and rate processes, polymer materials, composite materials, chemical kinetics and transfer processes.
It will be of interest to scientists dealing with thermodynamics and rate processes, polymer materials, composite materials, chemical kinetics and transfer processes.