Author Description

Product Description This book has been rewritten to match more closely the emphasis on the structure/properties/performance interplay that is developing in all aspects of technical materials -- both in universities and in industry. The book's new organization emphasizes the generic nature of engineering materials in phenomenon and function and acknowledges traditional classes of materials in the process. Coverage of frontier areas have been added including: toughened ceramics, new polymers, high-temperature superconductors, superhard magnets, and other fiber-optic glasses. From the Inside Flap No course in science or engineering may remain static. Not only does technology advance and scientific understanding increase, the academic framework undergoes changes. Thus, periodic revisions are desirable in an effort to optimize the value of a textbook for students who will be tomorrow's engineers. Developments such as the high-temperature superconductors are exciting, and the scientific data such as that obtained from tunneling electron microscopes provide new insights. During the last decade, however, the evolving structure of the academic environment probably has had a more direct impact on introductory materials courses within the engineering curricula. Whereas academic departments will continue to have specialists in ceramics, in polymers, as well as to hybrid composites. Likewise, graduate students working with polyblends give cognizance to phase immiscibilities and to the microstructure/property relationships utilized by ceramists and metallurgists. Particulate processing is no longer restricted to ceramics, nor are engineering designs using magnets limited to metallic materials. In view of these changes, the majority of the current generation of instructors can easily extend the topics of crystals from single-component metals to binary ceramic compounds, and even introduce simple molecular crystals when they tech an introductory materials course. Likewise, although reaction rates may differ, the same principles hold for the phase relationships of ceramics and polymers as they do for metals. Today's instructor easily handles these topics generically for the several types of materials. The major modification to this edition has been in the attention to the commonality found within the materials field, in which structures and properties are considered generically for all materials rather than categorically by material classes--metals, polymers, ceramics, and semiconducters. The three photos present on the cover and chapters this sixth edition are symbolic of this generic view; each chosen to pictorially demonstrate the connection between structure, properties, and performance. Overview Chapter 1 remains as an introduction to the topic of materials, since undergraduate students generally relate to their product without giving thought to the materials within them. Chapter 2 reviews the necessary chemistry from the students' previous general chemistry courses, but in doing so extends the topics of bonding and atomic coordination. The topics of Chapters 3, 4, and 5 are common to all materials--crystal structure, disorder in solids, and phase relationships, respectively. Included for the first time in Chapter 5 are several molecular phase diagrams, chosen to emphasize immiscibility, which is pertinent to the more recently developed polyblends. Chapter 6 combines and extends the subject of reaction rates, while Chapter 7 does the same for an introduction to microstructure. Although the three principal classes of materials have distinct differences with respect to these two topics, the bases of the differences are instructive to the subject; for example, the crystallization rates of metallic, silicate, and polymeric materials. Chapters 8, 9, and 10 focus on the mechanical behavior of solids. In sequence, they consider deformation, strengthening, and the characteristics of polymers and composites. Chapters 11, 12, and 13 look at the ele