Download or read book Fundamental Studies of the Chemical Vapor Deposition of Diamond Final Technical Report April 1 1988 December 31 1994 written by and published by . This book was released on 1995 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: We submit here a final technical report for the research program entitled: Fundamental Studies of the Chemical Vapor Deposition of Diamond, DOE Grant No. DE-FG05-88ER45345-M006. This research program was initiated in 1988 under the direction of the late Professor David A. Stevenson and was renewed in 1992. Unfortunately, at the end of 1992, just as the last phase of this work was getting underway, Professor Stevenson learned that he had developed mesothelioma, a form of cancer based on asbestos. Professor Stevenson died from that disease in February of 1994. Professor William D. Nix, the Chairman of the Materials Science department at Stanford was named the Principal Investigator. Professor Nix has assembled this final technical report. Much of the work of this grant was conducted by Mr. Paul Dennig, a graduate student who will receive his Ph. D. degree from Stanford in a few months. His research findings are described in the chapters of this report and in the papers published over the past few years. The main discovery of this work was that surface topology plays a crucial role in the nucleation of diamond on silicon. Dennig and his collaborators demonstrated this by showing that diamond nucleates preferentially at the tips of asperities on a silicon surface rather than in the re-entrant comers at the base of such asperities. Some of the possible reasons for this effect are described in this report. The published papers listed on the next page of this report also describe this research. Interested persons can obtain copies of these papers from Professor Nix at Stanford. A full account of all of the research results obtained in this work is given in the regular chapters that follow this brief introduction. In addition, interested readers will want to consult Mr. Dennig's Ph. D. dissertation when it is made available later this year.
Download or read book Fundamental Studies of the Chemical Vapor Deposition of Diamond Progress Report April 1 1990 July 31 1991 written by and published by . This book was released on 1991 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The plasma or thermally enhanced low pressure chemical vapor deposition of diamond films is an exciting development with many challenging fundamental problems. The early stages of nucleation is relevant to the initial growth rate and the perfection and morphology of the deposit. To isolate one of the factors that influence nucleation, we have studied the effect of surface topography on the nucleation process. Our earlier work has shown preferential nucleation on sharp convex features and we have proposed several possible reasons for this behavior, including dangling bonds at the convex features. In our recent work, we have extended our investigation to include a novel patterning of silicon substrates used to pattern silicon solar cells. The results are consistent with our earlier observations that the majority of nucleation events occur on protruding surface features. In an effort to establish whether dangling bonds at the protruding surfaces may be responsible for the selective nucleation, we have evaluated the dangling bond concentration using electron spin resonance. We have carried out deposition under nominally identical surface topography, but with different concentrations of dangling bonds at or near the surface. The results of this study indicate that dangling bonds play a minor role in enhancing nucleation, in contrast to a substantial role played by special surface topographical features. In the course of the past year, we have submitted four manuscripts for publication and have made six presentations.
Download or read book Fundamental Studies of the Chemical Vapor Deposition of Diamond written by and published by . This book was released on 1991 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The plasma or thermally enhanced low pressure chemical vapor deposition of diamond films is an exciting development with many challenging fundamental problems. The early stages of nucleation is relevant to the initial growth rate and the perfection and morphology of the deposit. To isolate one of the factors that influence nucleation, we have studied the effect of surface topography on the nucleation process. Our earlier work has shown preferential nucleation on sharp convex features and we have proposed several possible reasons for this behavior, including dangling bonds at the convex features. In our recent work, we have extended our investigation to include a novel patterning of silicon substrates used to pattern silicon solar cells. The results are consistent with our earlier observations that the majority of nucleation events occur on protruding surface features. In an effort to establish whether dangling bonds at the protruding surfaces may be responsible for the selective nucleation, we have evaluated the dangling bond concentration using electron spin resonance. We have carried out deposition under nominally identical surface topography, but with different concentrations of dangling bonds at or near the surface. The results of this study indicate that dangling bonds play a minor role in enhancing nucleation, in contrast to a substantial role played by special surface topographical features. In the course of the past year, we have submitted four manuscripts for publication and have made six presentations.
Download or read book Diamond Chemical Vapor Deposition written by Huimin Liu and published by Elsevier. This book was released on 1996-12-31 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents an updated, systematic review of the latest developments in diamond CVD processes, with emphasis on the nucleation and early growth of diamond CVD. The objective is to familiarize the reader with the scientific and engineering aspects of diamond CVD, and to provide experiences researchers, scientists, and engineers in academia and industry with the latest developments in this growing field.
Download or read book Diamond Films written by Koji Kobashi and published by Elsevier. This book was released on 2010-07-07 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: - Discusses the most advanced techniques for diamond growth - Assists diamond researchers in deciding on the most suitable process conditions - Inspires readers to devise new CVD (chemical vapor deposition Ever since the early 1980s, and the discovery of the vapour growth methods of diamond film, heteroexpitaxial growth has become one of the most important and heavily discussed topics amongst the diamond research community. Kobashi has documented such discussions with a strong focus on how diamond films can be best utilised as an industrial material, working from the premise that crystal diamond films can be made by chemical vapour disposition. Kobashi provides information on the process and characterization technologies of oriented and heteroepitaxial growth of diamond films.
Download or read book Chemical Vapor Deposition written by Jong-Hee Park and published by ASM International. This book was released on 2001 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Thirteenth International Conference on Chemical Vapor Deposition written by Theodore M. Besmann and published by The Electrochemical Society. This book was released on 1996 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamental Studies of Chemical Vapor Deposition Diamond Growth Processes written by and published by . This book was released on 1991 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are developing laser spectroscopic techniques to foster a fundamental understanding of diamond film growth by hot filament chemical vapor deposition (CVD). Several spectroscopic techniques are under investigation to identify intermediate species present in the bulk reactor volume, the thin active volume immediately above the growing film, and the actual growing surface. Such a comprehensive examination of the overall deposition process is necessary because a combination of gas phase and surface chemistry is probably operating. Resonantly enhanced multiphoton ionization (REMPI) techniques have been emphasized. A growth rector that permits through-the-substrate gas sampling for REMPI/time-of-flight mass spectroscopy has been developed. 7 refs., 2 figs.
Download or read book Chemical Vapor Deposition written by Electrochemical Society. High Temperature Materials Division and published by The Electrochemical Society. This book was released on 1997 with total page 1686 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Industrial Diamonds and Diamond Films written by Mark A. Prelas and published by Routledge. This book was released on 2018-12-19 with total page 1232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines both mined and synthetic diamonds and diamond films. The text offers coverage on the use of diamond as an engineering material, integrating original research on the science, technology and applications of diamond. It discusses the use of chemical vapour deposition grown diamonds in electronics, cutting tools, wear resistant coatings, thermal management, optics and acoustics, as well as in new products.
Download or read book A Theoretical Study of Diamond Chemical Vapor Deposition written by Sergei Skokov and published by . This book was released on 1996 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Vapour Deposition of Diamond for Dental Tools and Burs written by Waqar Ahmed and published by Springer. This book was released on 2014-07-14 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents chemical vapour deposition of diamond films for application in cutting tools, microdrills, dental burs and surgical tools. It examines various deposition techniques, discusses mechanisms of diamond growth and their impact on cutting tool life and performance.
Download or read book Handbook of Chemical Vapor Deposition written by Hugh O. Pierson and published by William Andrew. This book was released on 1992 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of chemical vapor deposition (CVD), an extremely versatile process for manufacturing coatings, powders, fibers, and monolithic components.
Download or read book A Study of Chemical Vapor Deposition Diamond Morphology written by John Michael Larson and published by . This book was released on 2000 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Vapor Deposited Diamond Film written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-29 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This chapter describes the nature of clean and contaminated diamond surfaces, Chemical-vapor-deposited (CVD) diamond film deposition technology, analytical techniques and the results of research on CVD diamond films, and the general properties of CVD diamond films. Further, it describes the friction and wear properties of CVD diamond films in the atmosphere, in a controlled nitrogen environment, and in an ultra-high-vacuum environment.Miyoshi, KazuhisaGlenn Research CenterDIAMOND FILMS; TRIBOLOGY; DIAMONDS; VAPOR DEPOSITION; FRICTION; WEAR; ULTRAHIGH VACUUM; NITROGEN; CONTROLLED ATMOSPHERES; LUBRICATION; COATINGS; SURFACE ROUGHNESS
Download or read book Diamond Films Handbook written by Jes Asmussen and published by CRC Press. This book was released on 2002-01-23 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Diamond Films Handbook is an important source of information for readers involved in the new diamond film technology, emphasizing synthesis technologies and diamond film applications. Containing over 1600 references, drawings, photographs, micrographs, equations, and tables, and contributions by experts from both industry and academia, it inclu
Download or read book Fundamental Studies of Diamond Chemical Vapour Deposition written by and published by . This book was released on 2011 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt:
