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Plasma Photon And Beam Synthesis Of Diamond Films And Multilayered Structures Progress Report July 1 1990 September 1992
Download Plasma Photon And Beam Synthesis Of Diamond Films And Multilayered Structures Progress Report July 1 1990 September 1992 full books in PDF, epub, and Kindle. Read online Plasma Photon And Beam Synthesis Of Diamond Films And Multilayered Structures Progress Report July 1 1990 September 1992 ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Plasma, Photon, and Beam Synthesis of Diamond Films and Multilayered Structures. Progress Report, July 1, 1990--September 1992 by :
Download or read book Plasma, Photon, and Beam Synthesis of Diamond Films and Multilayered Structures. Progress Report, July 1, 1990--September 1992 written by and published by . This book was released on 1992 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the area of nucleation, it was discovered that C--0 thin films are perfect substitutes for diamond seeds in the growth of diamond films. This research, along with a careful study of diamond growth on carbon ion implanted single crystal copper, have clearly demonstrated that structured carbon is the best precursor for nucleation and growth of diamond films on non-diamond surfaces. In addition, by using fluorine chemistry during diamond growth, it has been shown that diamond films can grow on carbide substrates without the pretreatment of diamond seeding. The growth rates are higher and the film adhesion is much improved.
Book Synopsis Plasma, Photon, and Beam Synthesis of Diamond Films and Multilayered Structures. Progress Report, July 1, 1990--June 30, 1991 by :
Download or read book Plasma, Photon, and Beam Synthesis of Diamond Films and Multilayered Structures. Progress Report, July 1, 1990--June 30, 1991 written by and published by . This book was released on 1991 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three major areas of fundamental research on diamond thin films have been explored during the last period, 1990--1991. A new microwave plasma enhanced laser ablation system has been designed and constructed. This system is currently being used to study the possibility of depositing diamond films on plastic surfaces. A mechanism for nucleating diamond films on single crystal copper surfaces has been proposed and detailed experiments have been carried out. Carbon clusters of C--0 have been successfully used to nucleate diamond on non-diamond surfaces. This invention provides an alternative to using diamond -- grit polish as a nucleating agent.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plasma, Photon, and Beam Synthesis of Diamond Films and Multilayered Structures. Final Report for the Period July 1996 - December 1998 by :
Download or read book Plasma, Photon, and Beam Synthesis of Diamond Films and Multilayered Structures. Final Report for the Period July 1996 - December 1998 written by and published by . This book was released on 1999 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The DOE has been supporting Professor Chang and his students in the area of plasma and photon synthesis of diamond-like and ceramic films with varying complexity during the past three years. We have made substantial contribution to the field during this period of time. Some of the important questions have been addressed, and they include: a. How does the energy (wavelength) of the laser change the composition and energy distribution of the ablated species? b. How do surface mobility and the intensity of the plasma plume affect crystal nucleation and growth? c. How can one manipulate the system parameters during film growth to achieve special properties for unique applications? In the area of photon synthesis, we have shown that amorphous diamond films can have properties very similar to polycrystalline diamond films and yet they may have wider applications in such areas as coating and electronics. For example, we have shown that these films can be used to protect plastics such as polycarbonate surfaces. During the course of our amorphous diamond films research, we have also identified important parameters which alter the film properties. Higher photon energy and laser power density contribute to higher percentage of carbon ion density and energy in the plasma plume. This in turn proves films with higher percentage of diamond-like sp3 bonds and thus diamond-like properties of the films. Lower photon energies and collision of the plasma plume with background gas will produce films which are rich in graphitic properties. In the area of oxide film growth, we have found, in general, that better crystalline films can be grown by laser ablation at much lower substrate temperatures than by chemical vapor deposition process. This is due to the fact that in laser ablation the depositing species have more kinetic energies and the whole process involves rapid solidification. By using optical emission spectroscopy, we have learned how to adjust the deposition parameters to control film properties such as grain size and crystal orientations. These control capabilities have allowed us to grow oxide films with unique properties, such as high optical nonlinearity. In addition, we have been able to grow films with special crystalline orientations to serve as templates for chemical vapor deposition processes.
Book Synopsis Plasma, Photon, and Beam Synthesis of Diamond Films and Multilayered Structures by :
Download or read book Plasma, Photon, and Beam Synthesis of Diamond Films and Multilayered Structures written by and published by . This book was released on 1991 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three major areas of fundamental research on diamond thin films have been explored during the last period, 1990--1991. A new microwave plasma enhanced laser ablation system has been designed and constructed. This system is currently being used to study the possibility of depositing diamond films on plastic surfaces. A mechanism for nucleating diamond films on single crystal copper surfaces has been proposed and detailed experiments have been carried out. Carbon clusters of C--0 have been successfully used to nucleate diamond on non-diamond surfaces. This invention provides an alternative to using diamond -- grit polish as a nucleating agent.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1992 with total page 1114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1993-04 with total page 1774 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992-06 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Diamond Films Handbook by : Jes Asmussen
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
Book Synopsis Thin Film Diamond by : A.H. Lettington
Download or read book Thin Film Diamond written by A.H. Lettington and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work, written by leading international authorities, deals with nucleation growth and processing, characterization and electrical, thermal, optical and mechanical properties of thin film diamond. The final chapters are devoted to the broad range of applications of this material.
Book Synopsis Controlled Synthesis of Diamond Films Using a Microwave Discharge (non-equilibrium Plasma) by : Saeid Khatami
Download or read book Controlled Synthesis of Diamond Films Using a Microwave Discharge (non-equilibrium Plasma) written by Saeid Khatami and published by . This book was released on 1997 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Book Synopsis Thermal Plasma Processing of Materials. Progress Report, September 1, 1988--January 31, 1992 by :
Download or read book Thermal Plasma Processing of Materials. Progress Report, September 1, 1988--January 31, 1992 written by and published by . This book was released on 1992 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emphasis has been on plasma synthesis of fine powders, plasma Chemical Vapor Deposition (CVD), on related diagnostics, and on modeling work. Since plasma synthesis as well as plasma CVD make frequent use of plasma jets, the beginning has been devoted of plasma jets and behavior of particulates injected into such plasma jets. Although most of the construction of the Triple-Torch Plasma Reactor (TTPR) has already been done, modifications have been made in particular modifications required for plasma CVD of diamond. A new reactor designed for Counter-Flow Liquid Injection Plasma Synthesis (CFLIPS) proved to be an excellent tool for synthesis of fine powders as well as for plasma CVD. An attempt was made to model flow and temperature fields in this reactor. Substantial efforts were made to single out those parameters which govern particle size, size distribution, and powder quality in our plasma synthesis experiments. This knowledge is crucial for controlling the process and for meaningful diagnostics and modeling work. Plasma CVD of diamond films using both reactors has been very successful and we have been approached by a number of companies interested in using this technology for coating of tools.
Book Synopsis Fundamental Studies of the Chemical Vapor Deposition of Diamond. Progress Report, April 1, 1990--July 31, 1991 by :
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.
Book Synopsis Synthesis of Thin and Thick Ultra-nanocrystalline Diamond Films by Microwave Plasma CVD Systems by : Dzung Tri Tran
Download or read book Synthesis of Thin and Thick Ultra-nanocrystalline Diamond Films by Microwave Plasma CVD Systems written by Dzung Tri Tran and published by . This book was released on 2005 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Industrial Diamonds and Diamond Films by : Mark A. Prelas
Download or read book Handbook of Industrial Diamonds and Diamond Films written by Mark A. Prelas and published by CRC Press. This book was released on 1997-09-23 with total page 1454 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.
Book Synopsis Synthesis of Diamond Films with Pulsed Plasma by :
Download or read book Synthesis of Diamond Films with Pulsed Plasma written by and published by . This book was released on 1992 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diamond films were grown in plasmas formed with microwaves that were modulated with a pulsed generator. Films obtained with the use of pulse periods in the nanosecond, microsecond, and millisecond ranges were compared to baseline films which were obtained with a CW plasma. The deposited films were examined with SEM, XRD and Micro-Raman spectroscopy. For the experimental conditions used, the diamond films' growth rates and quality improved with increasing pulse duration while maintaining a duty cycle at nearly 50 percent, and reached a maximum with CW generated films. This was attributed primarily to an increasing degree of supersaturation of atomic hydrogen at the growth surface with increasing pulse time. diamond technology.
