Handbook of Vacuum Arc Science and Technology. Fundamentals by Raymond L. Boxman

By Raymond L. Boxman

Content material:
Foreword

, Pages vii-viii, James M. Lafferty
Preface

, Pages ix-xv, Raymond L. Boxman
Contributors

, Pages xvii-xviii
1 - electric Discharges and Plasmas —A short Tutorial

, Pages 3-27, Raymond L. Boxman
2 - Arc Ignition

, Pages 28-72, George A. Farrall
- Phenomenology

, Pages 73-151, Burkhard Jüttner, Victor F. Puchkarev
- Theories of Cathode Spots

, Pages 151-208, Erhard Hantzsche
Theoretical Modeling of Cathode Spot Phenomena

, Pages 208-256, Isak Beilis
Chapter Summary

, Pages 256-281, Victor F. Puchkarev
4 - The Interelectrode Plasma

, Pages 282-307, Samuel Goldsmith
5 - Anode Phenomena

, Pages 308-364, H. Craig Miller
Vacuum Arc Desposition

, Pages 367-396, Philip J. Martin
Arc resource designs

, Pages 396-397, Steven Falabella, Dmitri A. Karpov
Continuous cathodic Arc sources

, Pages 397-423, Steven Falabella, Dmitri A. Karpov
Distributed Arc sources

, Pages 423-444, Vladimir I. Gorokhovsky, Vladimir P. Polistchook, Ivan M. Yartsev, Joseph W. Glaser
Pulsed Arc sources

, Pages 444-453, Ian Brown
Rigid-rotor types of plasma flow

, Pages 454-466, David B. Boercker, David M. Sanders, Steven Falabella
Film growth

, Pages 467-493, Philip J. Martin, David R. Mckenzie
Applications of Arc-deposited coatings

, Pages 493-519, Jörg Vetter, Anthony J. Perry
Emerging functions and new possibilities with PVD Arc sources

, Pages 519-551, Subbiah Ramalingam
7 - Vacuum Arc steel Processing

, Pages 552-589, Gerhard Brückmann, Harald Scholz
8 - Vacuum Switching of excessive present and excessive Voltage at strength Frequencies

, Pages 590-624, Allan Greenwood
9 - Pulsed strength Applications

, Pages 625-699, Roger Dougal, Ian G. Brown, Sture ok. Händel
Nomenclature—by Subject

, Pages 700-704
Nomenclature—Alphabetical

, Pages 705-708
Index

, Pages 709-736
About the Contributors

, Pages 737-742

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Extra resources for Handbook of Vacuum Arc Science and Technology. Fundamentals and Applications

Sample text

Even if possible, that topography would probably change in the course of the experiments. Clearly, a modified approach is needed. pE' by I/A where I is the total measured emission current and A is the emission area. They further suggested re-writing electric field, F, as; Eq. (6) V F=Pd The quantity, p, is the factor by which a surface emitter enhances the average electric field, V/d (where d is the gap length). Making these substitutions in Eq. (2), and taking the logarithm of both sides of the equation, results in the following: Eq.

The influence of cathode emission upon the anode and consequent effects related to breakdown have been discussed frequently in the literature. Among the early investigators promoting this view were Hull and Burger. 141] According to their view, electron emission from the cathode proceeded across the gap, causing vaporization ofanode material. It was the ionization of this vapor by the cathode beam that produced the necessary plasma to initiate breakdown. This proposal has been made more credible in subsequent work by Yen, Tuma, and Davies.

In an analysis ofparticle transit times, FarraIJl37] demonstrated that breakdown voltage could depend upon various powers of the gap length for data acquired using high voltage pulses of varying rise times. l38 ] In this model, a particle leaving the cathode is subjected to increasing field by a rising impulse voltage. Ultimately, before the particles strike the anode, breakdown occurs between the particle and the cathode, establishing a cathode spot from which total collapse of voltage across the gap occurs.

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