V. I. Dybkov

Reaction Diffusion and Solid State Chemical Kinetics (eBook, PDF)

• Format: PDF

Produktbeschreibung

Volume is indexed by Thomson Reuters BCI (WoS).This monograph deals with a physico-chemical approach to the problem of the solid-state growth of chemical compound layers and reaction-diffusion in binary heterogeneous systems formed by two solids; as well as a solid with a liquid or a gas. It is explained why the number of compound layers growing at the interface between the original phases is usually much lower than the number of chemical compounds in the phase diagram of a given binary system. For example, of the eight intermetallic compounds which exist in the aluminium-zirconium binary system, only ZrAl3 was found to grow as a separate layer at the Al-Zr interface under isothermal conditions. The physico-chemical approach predicts that, in most cases, the number of compound layers should not exceed two; with the main factor, resulting in the appearance of additional layers, being crack formation due to thermal expansion and volume effects.The book is addressed to research workers, engineers, post-graduates and students (physical, solid-state and inorganic chemists, metal and solid-state physicists, materials and corrosion scientists, metallurgists, etc.) who are involved in the study of solid-state processes and their practical applications. The latter include the solid-state synthesis of inorganic substances, protective coatings, corrosion, all-in-one joining of dissimilar metals, welding, soldering, brazing and thin-film electronics technology. It will also be of value to theoreticians, experimentalists and technologists.For scientists, engineers, and graduate students involved in the study of solid-state processes and their applications, Dybkov (physical chemistry of inorganic materials, National Academy of Sciences of Ukraine) outlines a physico-chemical approach to the problem of solid-state growth of chemical compound layers and reaction diffusion in binary heterogeneous systems formed by two solids or a solid with a liquid or a gas. He shows how experimentally observed kinetic dependences of the layer thickness upon time can be derived from a single theoretical viewpoint. He discusses the reasons for the kinetic instability of the layers of chemical compounds that may result in their gradual degradation; a comparative analysis of growth kinetics of the same compound layer in various reaction couples; mathematical expressions relating the growth rate of the layer in one of the couples to that in the others; the formation of duplex structures in these couples; dissolution in the solid-liquid systems and evaporation in the solid-gas systems in determining the layer-growth rate; and the reasons for the difference in values of reaction and self-diffusion coefficients of the components of a chemical compound.

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Produktdetails

• Verlag: Trans Tech Publications
• Seitenzahl: 334
• Erscheinungstermin: 18. März 2010
• Englisch
• ISBN-13: 9783038134459
• Artikelnr.: 52952220