Vakarin, S.V., Orientirovannyi rost vol’framovykh bronz pri elektrolize rasplavov (Oriented Growth of Tungsten Bronzes in Electrolysis of Melts)

Vakarin, S.V., Orientirovannyi rost vol’framovykh bronz pri elektrolize rasplavov (Oriented... ISSN 1070-4272, Russian Journal of Applied Chemistry, 2007, Vol. 80, No. 10, p. 1782. Pleiades Publishing, Ltd., 2007. Original Russian Text A.G. Morachevskii, 2007, published in Zhurnal Prikladnoi Khimii, 2007, Vol. 80, No. 10, pp. 1752 1753. BOOK REVIEWS Vakarin, S.V., Orientirovannyi rost vol’framovykh bronz pri elektrolize rasplavov (Oriented Growth of Tungsten Bronzes in Electrolysis of Melts), Yekaterinburg: Ural. Otd. Ross. Akad. Nauk, 2005, 109 pp. DOI: 10.1134/S1070427207100412 At the Institute of High-Temperature Electrochem- their lattice constants. Melts of the system K OWO 2 4 istry, Ural Division, Russian Academy of Sciences, Na WO WO (700 C) served as the electrolyte in 2 4 3 pupils of Academician A.N.Baraboshkin (1925 1995) a study of the growth of single crystals of an oxide continue systematic studies initiated by him in bronze with a tetragonal structure; single crystals of the field of the electrocrystallization of metals and the oxide bronze with a hexagonal structure were ob- various complex compounds from molten electrolytes. tained in electrolysis of a melt of the system K WO 2 4 The research in this area, distinguished by original Li WO WO (700 C). 2 4 3 problem formulation and novelty, has already yielded The experimental results are illustrated by a large theoretically and practically important results. number of photographs. The author makes a com- The monograph by S.V.Vakarin is concerned with parative characterization of the morphological features the oriented growth of crystals of tungsten bronzes of metals and oxide bronzes. in electrocrystallization from molten electrolytes. The book comprises an introduction, four chapters, The small fourth chapter (pp. 90 98) discusses conclusion, and bibliographic list. certain aspects of crystal structure formation. The con- clusion (pp. 99, 100) summarizes the main concepts The brief introduction (pp. 3, 4) notes advantages considered in the monograph. It is, in particular, noted of the electrolytic method for growth of tungsten that conclusions concerning the crystal growth types, bronze crystals over other techniques. The aim is to made for oxide tungsten bronzes, can be extended to find conditions under which crystals with a certain other substances. The bibliographic list (pp. 101 107) shape and spatial orientation can be obtained. The first contains references to 148 domestic and foreign pub- chapter (pp. 5 36) analyzes some general evidence lications, with a prominent place occupied by works available in the scientific literature. It discusses of Baraboshkin and co-workers, including the author the mechanism of crystal growth in various media of the monograph. As already noted, tungsten bronzes under various conditions, morphological stability of can be regarded as a model object in high-temperature crystals, and theory of formation of a preferential studies of the electrocrystallization process. orientation of crystals. A separate section of the chap- ter is devoted to oxide tungsten bronzes, their nature, The monograph by Vakarin may be of interest for their synthesis by electrolysis of melts, and growth of a wide audience of specialists studying the crystal- single crystals. lization process. The Institute of High-Temperature Electrochemistry (Ural Division, Russian Academy The second chapter (pp. 37 46) includes descrip- of Sciences), which celebrates its 50th foundation tion of methods for study of the oriented growth of anniversary in 2007, is the only Russia’s specialized single crystals directly in the course of electrolysis. institution engaged in broadscope studies of promising The third chapter (pp. 47 89) considers the relation- systems and processes associated with electrochem- ship between the growth rates of single crystals of istry of molten and solid electrolytes. The research bronzes with tetragonal and hexagonal structure and conducted at this institute is distinguished by a high the overvoltage. The experiments performed with experimental and theoretical level. The monograph is Baraboshkin’s participation by the author of the mono- well written and accurately published, and makes graph were aimed to measure the growth rates of quite a favorable impression. crystals in different directions, analyze their faceting and the morphology of the crystal faces, and deter- mine the chemical composition of the crystals and A. G. Morachevskii Russian Journal of Applied Chemistry Springer Journals

Vakarin, S.V., Orientirovannyi rost vol’framovykh bronz pri elektrolize rasplavov (Oriented Growth of Tungsten Bronzes in Electrolysis of Melts)

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Copyright © 2007 by Pleiades Publishing, Ltd.
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
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