Download or read book Cathode Sheath Charge Transfer Effects written by and published by . This book was released on 1993 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: The United Technologies Research Center, under Contract No. F33615- 87-C-2718, has carried out a theoretical research investigation of ion-molecule reactions that take place in the sheath region of low pressure discharges in silane gas mixtures. Of particular interest were the dissociative charge transfer mechanism(s) and energy dependent reaction rates of electrons, H+, H-, H3+ and several noble gas ions (He+, Ne+, Ar+) in collisions with silane (SiH4). Such reactions are an important component in the modeling of plasma-processing discharges for producing device-quality silicon films and a detailed understanding of their kinetics is required. Similar ion-molecule reactions with methane and other lower member alkanes have proven to be of importance in the analysis of hydrocarbon combustion. The results of this theoretical investigation furnish fundamental data and provide a better understanding of the role of ion collision-induced molecular decomposition. The initial program for the research effort under this contract was formulated into three phases. Phase I consisted of a critical examination of available theoretical methods, including R-matrix methods, that are applicable to the prediction of the rates of dissociative charge transfer in ion-molecule collisions. These studies resulted in the development of an improved R-matrix code which incorporated analysis of reaction products.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Air Force Research Resum s written by and published by . This book was released on with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Principles of Plasma Discharges and Materials Processing written by Michael A. Lieberman and published by John Wiley & Sons. This book was released on 2024-08-28 with total page 837 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new edition of this industry classic on the principles of plasma processing Plasma-based technology and materials processes have been central to the revolution of the last half-century in micro- and nano-electronics. From anisotropic plasma etching on microprocessors, memory, and analog chips, to plasma deposition for creating solar panels and flat-panel displays, plasma-based materials processes have reached huge areas of technology. As key technologies scale down in size from the nano- to the atomic level, further developments in plasma materials processing will only become more essential. Principles of Plasma Discharges and Materials Processing is the foundational introduction to the subject. It offers detailed information and procedures for designing plasma-based equipment and analyzing plasma-based processes, with an emphasis on the abiding fundamentals. Now fully updated to reflect the latest research and data, it promises to continue as an indispensable resource for graduate students and industry professionals in a myriad of technological fields. Readers of the third edition of Principles of Plasma Discharges and Materials Processing will also find: Extensive figures and tables to facilitate understanding A new chapter covering the recent development of processes involving high-pressure capacitive discharges New subsections on discharge and processing chemistry, physics, and diagnostics Principles of Plasma Discharges and Materials Processing is ideal for professionals and process engineers in the field of plasma-assisted materials processing with experience in the field of science or engineering. It is the premiere world-wide basic text for graduate courses in the field.

Download or read book Encyclopedia of Plasma Technology Two Volume Set written by J. Leon Shohet and published by CRC Press. This book was released on 2016-12-12 with total page 1654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technical plasmas have a wide range of industrial applications. The Encyclopedia of Plasma Technology covers all aspects of plasma technology from the fundamentals to a range of applications across a large number of industries and disciplines. Topics covered include nanotechnology, solar cell technology, biomedical and clinical applications, electronic materials, sustainability, and clean technologies. The book bridges materials science, industrial chemistry, physics, and engineering, making it a must have for researchers in industry and academia, as well as those working on application-oriented plasma technologies. Also Available Online This Taylor & Francis encyclopedia is also available through online subscription, offering a variety of extra benefits for researchers, students, and librarians, including: Citation tracking and alerts Active reference linking Saved searches and marked lists HTML and PDF format options Contact Taylor and Francis for more information or to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367; (E-mail) [email protected] International: (Tel) +44 (0) 20 7017 6062; (E-mail) [email protected]

Download or read book Nonthermal Plasma Chemistry and Physics written by Jurgen Meichsner and published by CRC Press. This book was released on 2012-11-13 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: In addition to introducing the basics of plasma physics, Nonthermal Plasma Chemistry and Physics is a comprehensive presentation of recent developments in the rapidly growing field of nonthermal plasma chemistry. The book offers a detailed discussion of the fundamentals of plasma chemical reactions and modeling, nonthermal plasma sources, relevant

Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 1726 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface Modification and Mechanisms written by George E. Totten and published by CRC Press. This book was released on 2004-04-30 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leading readers through an extensive compilation of surface modification reactions and processes for specific tribological results, this reference compiles detailed studies on various residual stresses, reaction processes and mechanisms, heat treatment methods, plasma-based techniques, and more, for a solid understanding of surface structural changes that occur during various engineering procedures. This unique book explores topics previously ignored in other texts on surface engineering and tribology, offers guidelines for the consideration and design of wear life and frictional performance, and sections on laser impingement and nanometer scale surface modification.

Download or read book Charge Transfer in Physics Chemistry and Biology written by Kuznetrsov and published by CRC Press. This book was released on 1995-09-15 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unified approach to charge transfer science provides a valuable tool for the increasing number of theoretical and experimental scientists involved in such areas as physical chemistry, electrochemistry, chemical physics, biophysics, biochemistry, and solid-state and surface physics. This comprehensive monograph presents the process of charge transfer in the traditionally independent fields of physics, chemistry and biology from a unified point of view. The numerous facets of charge transfer are presented coherently, emphasising the common nature of phenomena which at first sight appear quite different. Detailed theoretical overviews are presented and phenomena such as redox, electrochemical and radiative processes, polarons, proton transfer and biological processes are discussed. All major results of the different processes in physics, chemistry and biology are discussed in detail with special reference to their physical mechanisms, thereby allowing a unified conceptual approach to be applied

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1462 pages. Available in PDF, EPUB and Kindle. Book excerpt: NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.

Download or read book Nonthermal Plasmas for Materials Processing written by Jörg Florian Friedrich and published by John Wiley & Sons. This book was released on 2022-07-15 with total page 805 pages. Available in PDF, EPUB and Kindle. Book excerpt: NONTHERMAL PLASMAS FOR MATERIALS PROCESSING This unique book covers the physical and chemical aspects of plasma chemistry with polymers and gives new insights into the interaction of physics and chemistry of nonthermal plasmas and their applications in materials science for physicists and chemists. The properties and characteristics of plasmas, elementary (collision) processes in the gas phase, plasma surface interactions, gas discharge plasmas and technical plasma sources, atmospheric plasmas, plasma diagnostics, polymers and plasmas, plasma polymerization, post-plasma processes, plasma, and wet-chemical processing, plasma-induced generation of functional groups, and the chemical reactions on these groups along with a few exemplary applications are discussed in this comprehensive but condensed state-of-the-art book on plasma chemistry and its dependence on plasma physics. While plasma physics, plasma chemistry, and polymer science are often handled separately, the aim of the authors is to harmoniously join the physics and chemistry of low-pressure and atmospheric-pressure plasmas with polymer surface chemistry and polymerization and to compare such chemistry with classic chemistry. Readers will find in these chapters Interaction of plasma physics and chemistry in plasmas and at the surface of polymers; Explanation and interpretation of physical and chemical mechanisms on plasma polymerization and polymer surface modification; Introduction of modern techniques in plasma diagnostics, surface analysis of solids, and special behavior of polymers on exposure to plasmas; Discussion of the conflict of energy-rich plasma species with permanent energy supply and the much lower binding energies in polymers and alternatives to avoid random polymer decomposition Technical applications such as adhesion, cleaning, wettability, textile modification, coatings, films, etc. New perspectives are explained about how to use selective and mild processes to allow post-plasma chemistry on non-degraded polymer surfaces. Audience Physicists, polymer chemists, materials scientists, industrial engineers in biomedicine, coatings, printing, etc.

Download or read book Handbook of Vacuum Arc Science Technology written by Raymond L. Boxman and published by William Andrew. This book was released on 1996-12-31 with total page 775 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a comprehensive text describing the basic physics and technological applications of vacuum arcs. Part I describes basic physics of the vacuum arc, beginning with a brief tutorial review of plasma and electrical discharge physics, then describes the arc ignition process, cathode and anode spots which serve as the locus for plasma generation, and resultant interelectrode plasma. Part II describes the applications of the vacuum arc for depositing thin films and coatings, refining metals, switching high power, and as sources of intense electron, ion, plasma, and x-ray beams.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1993 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cathode Sheath Effects in Externally Ionized Gas Discharges written by Marc R. Hallada and published by . This book was released on 1981 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lowke's theoretical investigation of gas discharges sustained by an external ionization source was extended. In addition to the processes of electron diffusion, electron-ion combination, and ionization of the ground state considered by Lowke, electron-impact ionization of metastable states and secondary emission from the cathode were included in the present analysis. Current-voltage (I-V) characteristics were obtained for discharges in argon and methane. At current densities of 1A/sq cm, Townsend ionization in the cathode sheath resulted in positive-ion number densities which significantly exceeded those in the positive column. I-V characteristics obtained revealed a sharp rise in the current at an 'ignition' voltage. The slope of the high-current region of the characteristic increased for an increase in secondary emission. With the addition of metastable ionization, the ignition voltage and the entire I-V voltage and at low external ionization source strengths, an unstable region of negative differential conductivity was observed. (Author).

Download or read book SASP 84 written by and published by . This book was released on 1984 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physics Briefs written by and published by . This book was released on 1993 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt: