Intermetallics. Structures, Properties, and Statistics. By Walter Steurer and Julia Dshemuchadse. Oxford University Press, 2016, Hardcover, Pp. 592. Price GBP 85.00. ISBN 9780198714552

Abstract

Intermetallics are solid-state compounds exhibiting metallic bonding, defined stoichiometry and ordered crystal structure. It is now a century since it was recognized in an early book (Giua & Lollini Giua, 1918), written by Michele Giua, Professor of Industrial Chemistry at Turin University together with his wife Clara Lollini Giua, that numerous compounds could form. Many more were discovered in the following decades. A few gained increasing industrial interest, e.g. aluminides, but it was only in 1993 that a dedicated journal, Intermetallics, was founded by the late Robert Cahn. Now, here comes the book Intermetallics with subtitle Structures, Properties and Statistics by Walter Steurer and Julia Dshemuchadse which sets a new paradigm in the topic by analyzing the structure and classifying the tens of thousands intermetallics known to date. The book is divided in two parts: Concepts and Statistics are the content of Part I and Structure and Properties of Part II. The text is full of information filling more than 500 pages. It has an extensive literature section as well an index of chemical formulae. A useful list of abbreviations and a glossary are provided. The linguistic approach is rigorous in terminology and in making reference to theories, methods and rules. Chapter 1 gives the basic terminology concerning symmetry, lattices, atomic environment types. It is clear and well organized. I would suggest it to students of materials science courses to learn definitions properly. The second chapter summarizes the factors governing structure and stability of intermetallics with emphasis mainly on quantum chemistry. The quantum chemistry methods employed in the literature are mentioned with a short description of up to one page. For the reader not experienced in this topic, this section is of limited usefulness considering also the absence of illustrations. It is understood a more lengthy treatment would have diverted the text from its main objectives. The authors, however, direct the reader to the relevant literature for all methods. Being perhaps biased by my thermodynamic background, I felt the stability issue could have been tackled also by mentioning the methods employed to evaluate the Gibbs free energy of intermetallics, especially because the calculation of this quantity is an expanding topic for those performing phase diagram calculations including the calculation of the enthalpy of formation from first principles. The description of tilings in Chapter 3 is detailed, though concise, with good examples and images. This represents the basis for building up the structure of complex intermetallics through an accurate description of polyhedra and packings. The next step is the treatment of n-dimensional spaces to represent the structure of both complex periodic and aperiodic compounds in Chapter 4. The following Chapter 5, is the most innovative one dealing with a statistical analysis of the occurrence of intermetallics in binary (the largest number), ternary and higher order systems. This is a striking amount of work carried out with absolute competence and corroborated with several examples of structure types. The structure of compounds is classified according to the Pettifor chemical scale, which is used extensively. Apparently, the Pettifor scale is successful in indicating the zones of the plot of the Mendeleev number of constituents where structures can be found. This can be considered as an indication for predicting new compounds, although not explicitly stated in the text. I have a problem with the readability of such plots which are necessarily ISSN 2052-5206