An Introduction to Electrical Engineering Materials

An Introduction to Electrical Engineering Materials An Introduction to Electrical Engineering Materials  Sample PDF Download
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Publisher: SChand Publications
ISBN: 9788121906661
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Number of Pages: 393
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PREFACE TO THE SIXTH EDITION In sixth edition, a new chapter on Semiconductor Fabrication Technology and Miscellaneous Semiconductor Devices has been included. Additional self-assessment questions with answers and additional worked examples. In this edition new pictures and problems has been added at the end of the book for the benefit of the students. The new sixth edition is published in a bigger size than the previous editions. The authors are thankful to S.chand Editorial Department for bringing out the new edition of the book with a larger size and a new layout. AUTHORS
PREFACE TO THE FIRST EDITION The Electrical Age has opened new problems to all connected with modern electrical industry, making a thorough working knowledge of the fundamental principles of the science of materials necessary. The increasing importance of this science has led to a number of new devices used in present day electrical engineering. As such the subject of electrical materials is occupying an important place in all electrical engineering undergraduate courses. This book is an outgrowth of a course given by Prof. John Brown of the University College, London to the undergraduate students of the Indian Institute of Technology, Delhi. The main purpose with which this book was written was to present the students of electrical engineering with a single book containing a description of the syllabus known as Electrical Materials . This book offers a first general introduction to the subject being mainly descriptive in nature and provides a guiding framework from which the reader may assess probable properties of electrical materials. Stress is laid on the basic physical processes responsible for the properties in materials. Since undergraduates have insufficient acquaintance with wave mechanies, quantum-mechanical concepts have been omitted. A number of tables have been included to give the student a feeling for the order of magnitude of the quantities which enter into the discussion. The author hopes that the inclusion of many illustrations and much descriptive matter will make the book interesting. The topics covered include conducting, dielectric, magnetic and semiconducting materials. As a necessary background for an electrical materials course, the book includes one chapter on The structure of the atom . The complex permittivity problems is discussed in the chapter on Dielectric materials . The chapter on Semi-conductors contains mostly a qualitative discussion of such materials, and covers the band theory. The chapter on Junction rectifiers and transistors gives the proof of the junction capacitance. A chapter on The measurement of electrical and magnetic properties is included. The discussion in this chapter is intended to present simple methods and techniques appropriate to various measurements on materials. The chapter on Conduction in liquids gives a general idea of electrochemistry and corrosion effects. v
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The book includes enough materials for a 3-hours per week course of one semester duration. Many practice problems are available at the end of nearly all chapters. In collecting information on the subject many books on materials and solid state physics have been consulted. However, major portions of the book have been prepared from lecture notes. Hence it is possible that published material will sometimes have been used without proper acknowledgement. I regret any such inadvertences. A list of references which have been extensively consulted is given at the end of the book. Thanks are due to those who have helped me to complete this book, and I must particularly mention Prof. John Brown who very patiently but with great enthusiasm, has gone over the major portion of the manuscript and has offered many valuable suggestions. The author will welcome any suggestions for the improvement and notification of errors.