Science of ceramic chemical processing

Science of ceramic chemical processing

292 BOOK REVIEW Science of Ceramic Chemical Processing, by L.L. Hench and D.R. Ulrich (Eds.), J. Wiley and Sons, New York, 1986, 594 pp., price US$65...

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BOOK REVIEW Science of Ceramic Chemical Processing, by L.L. Hench and D.R. Ulrich (Eds.), J. Wiley and Sons, New York, 1986, 594 pp., price US$65, ISBN O-471-82645-6. Based on the Proceedings of the 2nd International Conference on Ultrastructure Processing of Ceramics, Glasses, and Composites, held February 25-March 1, 1985 in Palm Coast, Florida, U.S.A., this book outlines the basic chemistry required for the production of ceramics, glasses, and composite materials. The first two parts of the book deal with sol-gel science, processing and applications, particularly of silica, and describing the fundamentals of the method used as well as its experimental aspects. The sections 3 to 5 cover such topics as the production of materials (Sic, Si 3N4, SiO,) from organometallic precursors, ultrastructure in macromolecular materials, and micromorphology science, in which the synthesis, processing, rheology and colloidal behavior of ceramic powders are discussed. The last section of the book makes an approach to new materials from the point of view of quantum chemistry. The book includes contributions from specialists on each field covered (“Inorganic Colloids for Forming Microstructures “, by R.K. Iler; “Physical-Chemical Factors in Sol-Gel Processes “, by J. Zarzycki; “Network Theory and Gelation “, by P.J. Flory; “Rheological Science in Ceramic Processing”, by M.D. Sacks, etc.), and should be a valuable reference for research, production and teaching work in this field. J.M. PORT0

JOURNAL

L6PEZZ

REVIEW

Catalysis Today, Vol. 2, No. 2-3, Feb. 1988 (Ed. by R. Burch) This special issue devoted to “Pillared Clays “, presents an extensive overview as to the main properties of these materials. The more important characteristics are described in detail in the first 14 chapters. Numerous tables, structural models, spectra (X-ray diffraction, UV, IR, NMR, Miissbauer, . . . ), chemical reactions (hydrolysis, polymerization, _. . ) illustrate the main physico-chemical properties of this new class of material. It is noteworthy that for some years now the search for new materials has been the subject of numerous works (for instance the new superconducting ceramics). In the field of catalysis the objective is to obtain materials with pores as large as possible. In this way, the replacement of zeolites with pillared clays was one of the major milestones in the development of the science of catalysis. These investigations were directed largely by economics,

Reactivity

of Solids,

News

Brief, Vol. 6, No. 2-3,

December

1988