Bruce Dunn – författare

Magnetic Ceramics describes the structure, preparation techniques, magnetic properties and applications of iron-based oxides also known as ferrites; metallic magnetic materials are also covered in depth. The main purpose of the book is to provide an up-to-date overview of the relevant aspects of ferrites, which cover a wide range of magnetic properties and applications such as high-frequency transformer cores, permanent magnet cements, microwave telecommunication devices, magnetic recording media and heads. The approach is that of materials science, characteristically interdisciplinary, where chemical aspects are covered in terms of synthesis/fabrication methods and crystal structures, and physics is introduced to provide a theoretical basis to magnetic properties. A special emphasis is given to the relationship between microstructure and properties.

Magnetic Ceramics describes the structure, preparation techniques, magnetic properties and applications of iron-based oxides also known as ferrites; metallic magnetic materials are also covered in depth. The main purpose of the book is to provide an up-to-date overview of the relevant aspects of ferrites, which cover a wide range of magnetic properties and applications such as high-frequency transformer cores, permanent magnet cements, microwave telecommunication devices, magnetic recording media and heads. The approach is that of materials science, characteristically interdisciplinary, where chemical aspects are covered in terms of synthesis/fabrication methods and crystal structures, and physics is introduced to provide a theoretical basis to magnetic properties. A special emphasis is given to the relationship between microstructure and properties.

Acid-base cements have been known since the mid-nineteenth century and offer an alternative to polymerization as a route for forming solid substances. They are quick setting materials and some have unusual properties for cements, such as adhesion and translucency. They find diverse applications ranging from the biomedical to the industrial. Despite this there has been a failure to recognize them as constituting a single, well defined class of material. This book attempts to remedy this situation by unifying the subject and treating this range of materials as a single class. Following a brief historical overview, an introductory chapter defines these cements as materials that are formed by reacting a basic powder with an acidic liquid to yield a salt-like matrix. The nature of the cementation process and the cement-forming acids and bases are discussed. Other chapters are devoted to the methods of study, the structure of water and simple polyelectrolyte theory. In the remaining chapters the various types of cements classified according the anionic constituent of the matrix, are described. Thus, there are chapters on polyalkenoate, phosphate, oxychloride, oxysulphate and the non-aqueous phenolate cements. A chapter is devoted to miscellaneous aqueous cements which include the recently discovered polyphosphonate cements.