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Re Determination Of The Reaction Path Parameters Of Silicon Deposition For Aerospace Silicon Carbide Composites Via Chemical Vapor Deposition
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Book Synopsis Re-determination of the Reaction Path Parameters of Silicon Deposition for Aerospace Silicon Carbide Composites Via Chemical Vapor Deposition by : Sandeep D. Chandrasekaram
Download or read book Re-determination of the Reaction Path Parameters of Silicon Deposition for Aerospace Silicon Carbide Composites Via Chemical Vapor Deposition written by Sandeep D. Chandrasekaram and published by . This book was released on 2016 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development of air travel technology is always increasing and fuel efficiency is one of the most important factors that’s being looked into. For a 25% increase in fuel efficiency in the future aeroplanes, reduction in the weight of the engine is one of the factors that should be addressed while increasing the strength and power generated. For this purpose, General Electric Aviation has chosen Silicon Carbide as the material to build the turbine blades of its engines. Silicon carbide works best as it is strong, can withstand high temperature and lightweight. The downside of this material is that it reacts with water vapor at temperatures greater than 2700°F to form volatile Silicon hydroxide from Silicon dioxide, its protective layer; and furthermore it reduces to Silicon monoxide that vaporizes. To counter this problem, scientists at the National Aeronautics & Space Administration (NASA) have found that a rare earth silicate could be used as an environmental barrier coating (EBC) to prevent the exposure of Silicon Carbide to water vapor. The EBC can’t be directly coated on the Silicon Carbide surface as it isn’t chemically adhesive enough, therefore Silicon was chosen to act as the bond coat between the Silicon Carbide and EBC. The goal of this research is to design a reactor for the composites to be coated with Silicon using the reaction and diffusion kinetics determined at higher temperatures and different partial pressures compared to the standard electronics industry. Chemical Vapor Deposition is the technique that will be used in determining the necessary parameters. The findings from this research can be further used in optimizing the utilization of the reagents and optimizing the process economically.
Book Synopsis Gas Phase and Surface Modeling of Chemical Vapor Deposition of Pyrolytic Carbon on Silicon Carbide Fibers Using a Pure Methane Precursor by : Rajesh Balachandran
Download or read book Gas Phase and Surface Modeling of Chemical Vapor Deposition of Pyrolytic Carbon on Silicon Carbide Fibers Using a Pure Methane Precursor written by Rajesh Balachandran and published by . This book was released on 2011 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ceramic matrix composites (CMC) constitute a category of composite materials widely used in the aerospace industry as they satisfy the thermal, chemical and mechanical requirements of a good composite material with the drawback being in the high processing costs. Chemical vapor deposition is a process long known for its importance in aerospace and structural applications. Chemical vapor deposition can be used to develop thin interfacial coatings on fibers, which are reinforced in to a matrix according to the application. The interfacial layers are useful for preventing reactions between the fibers and the matrix material at high temperatures. Interfacial coatings can also deflect crack propagation once the composite is put into service. This work focuses on developing a suitable gas phase and surface kinetics model for obtaining the deposition profiles in the chemical vapor deposition of pyrocarbon on silicon carbide fibers at the given conditions of temperature, pressure and feed rate. The model uses an existing gas phase mechanism (National Institute for Standards and Technology and Gas Research Institute). There are combinations of species in the gas phase, but all of them do not lead to the deposition of pyrocarbon. This raises a question as to which of them would affect the rate of deposition and why. For the given conditions of temperature, pressure and flow rate and from the information available in different literature sources acetylene is assumed to be the major depositing specie of pyrocarbon Also, the gas phase mechanism was modified to simplify and suit the needs of the given conditions. The importance behind modeling the surface kinetics is that it could help understand the actual process in the formation of pyrolytic carbon. The mechanism of the pyrocarbon deposition could be important in knowing the type of carbon being deposited, which is of utmost importance in its applications. The modeling data is validated by means of using data obtained from experiments.
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 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Kinetic and Equilibrium Analysis of Silicon Carbide Chemical Vapor Deposition on Monofilaments by : Suleyman Akif Gokoglu
Download or read book A Kinetic and Equilibrium Analysis of Silicon Carbide Chemical Vapor Deposition on Monofilaments written by Suleyman Akif Gokoglu and published by . This book was released on 1993 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Electrochemical Society. High Temperature Materials Division Publisher :The Electrochemical Society ISBN 13 :9781566771788 Total Pages :1686 pages Book Rating :4.7/5 (717 download)
Book Synopsis Chemical Vapor Deposition by : Electrochemical Society. High Temperature Materials Division
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:
Book Synopsis Catalytic Chemical Vapor Deposition by : Hideki Matsumura
Download or read book Catalytic Chemical Vapor Deposition written by Hideki Matsumura and published by John Wiley & Sons. This book was released on 2019-02-15 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authoritative reference on catalytic chemical vapor deposition, written by the inventor of the technology. This comprehensive book covers a wide scope of Cat-CVD and related technologies from the fundamentals to the many applications, including the design of a Cat-CVD apparatus. Featuring contributions from four senior leaders in the field, including the father of catalytic chemical vapor deposition, it also introduces some of the techniques used in the observation of Cat-CVD related phenomena so that readers can understand the concepts of such techniques. Catalytic Chemical Vapor Deposition: Technology and Applications of Cat-CVD begins by reviewing the analytical tools for elucidating the chemical reactions in Cat-CVD, such as laser-induced fluorescence and deep ultra-violet absorption, and explains in detail the underlying physics and chemistry of the Cat-CVD technology. Subsequently it provides an overview of the synthesis and properties of Cat-CVD-prepared inorganic and organic thin films. The last parts of this unique book are devoted to the design and operation of Cat-CVD apparatuses and the applications. Provides coherent coverage of the fundamentals and applications of catalytic chemical vapor deposition (Cat-CVD) Assembles in one place the state of the art of this rapidly growing field, allowing new researchers to get an overview that is difficult to obtain solely from journal articles Presents comparisons of different Cat-CVD methods which are usually not found in research papers Bridges academic and industrial research, showing how CVD can be scaled up from the lab to large-scale industrial utilization in the high-tech industry. Catalytic Chemical Vapor Deposition: Technology and Applications is an excellent one-stop resource for researchers and engineers working on or entering the field of Cat-CVD, Hot-Wire CVD, iCVD, and related technologies.
Book Synopsis The Study of Alternating Flow Chemical Vapor Infiltration and a Novel Kinetics Determination Technique for the Vapor Deposition of Silicon Carbide Via the Decomposition of Methyltrichlorosilane by : Daniel Young Chiang
Download or read book The Study of Alternating Flow Chemical Vapor Infiltration and a Novel Kinetics Determination Technique for the Vapor Deposition of Silicon Carbide Via the Decomposition of Methyltrichlorosilane written by Daniel Young Chiang and published by . This book was released on 1999 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High Temperature Ceramic Matrix Composites 8 by : Litong Zhang
Download or read book High Temperature Ceramic Matrix Composites 8 written by Litong Zhang and published by John Wiley & Sons. This book was released on 2014-06-09 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings contains 78 papers from the 8th International Conference on High Temperature Ceramic Matrix Composites, held September 22-26, 2013 in Xi'an, Shaanxi, China. Chapters include: Ceramic Genome, Computational Modeling, and Design Advanced Ceramic Fibers, Interfaces, and Interphases Nanocomposite Materials and Systems Polymer Derived Ceramics and Composites Fiber Reinforced Ceramic MatrixComposites Carbon-Carbon Composites: Materials, Systems, and Applications Ultra High Temperature Ceramics and MAX Phase Materials Thermal and Environmental Barrier Coatings
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Book Synopsis Chemical Vapor Deposition Growth by : H. M. Manasevit
Download or read book Chemical Vapor Deposition Growth written by H. M. Manasevit and published by . This book was released on 1976 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the ASME Aerospace and Materials Divisions by : Wen S. Chan
Download or read book Proceedings of the ASME Aerospace and Materials Divisions written by Wen S. Chan and published by . This book was released on 1996 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains papers from the November 1996 congress, reflecting recent research in failure mechanisms and mechanism-based modelling in high temperature composites, and durability and damage tolerance of composites.
Book Synopsis Modeling of Chemical Vapor Deposition of Tungsten Films by : Chris R. Kleijn
Download or read book Modeling of Chemical Vapor Deposition of Tungsten Films written by Chris R. Kleijn and published by Birkhäuser. This book was released on 2013-11-11 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor equipment modeling has in recent years become a field of great interest, because it offers the potential to support development and optimization of manufacturing equipment and hence reduce the cost and improve the quality of the reactors. This book is the result of two parallel lines of research dealing with the same subject - Modeling of Tungsten CVD processes -, which were per formed independently under very different boundary conditions. On the one side, Chris Kleijn, working in an academic research environment, was able to go deep enough into the subject to laya solid foundation and prove the validity of all the assumptions made in his work. On the other side, Christoph Werner, working in the context of an industrial research lab, was able to closely interact with manufacturing and development engineers in a modern submicron semiconductor processing line. Because of these different approaches, the informal collaboration during the course of the projects proved to be extremely helpful to both sides, even though - or perhaps because - different computer codes, different CVD reactors and also slightly different models were used. In spite of the inconsistencies which might arise from this double approach, we feel that the presentation of both sets of results in one book will be very useful for people working in similar projects.
Book Synopsis Chemical Vapor Deposition of Silicon Carbide by : Schyi-yi Wu
Download or read book Chemical Vapor Deposition of Silicon Carbide written by Schyi-yi Wu and published by . This book was released on 1977 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis of Silicon Carbide by Chemical Vapor Deposition by : T. Hirai
Download or read book Synthesis of Silicon Carbide by Chemical Vapor Deposition written by T. Hirai and published by . This book was released on 1983 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Kinetic Investigation of the Chemical Vapor Deposition of Silicon Carbide Through Thermal Decomposition of Methyltrichlorosilane by : George D. Papasouliotis
Download or read book Kinetic Investigation of the Chemical Vapor Deposition of Silicon Carbide Through Thermal Decomposition of Methyltrichlorosilane written by George D. Papasouliotis and published by . This book was released on 1997 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Chemical Vapor Deposition of Silicon Carbide on Graphite and Titanium Using a Combined Hot Wall and Heated Substrate Reactor by : Robert M. Galasso
Download or read book Chemical Vapor Deposition of Silicon Carbide on Graphite and Titanium Using a Combined Hot Wall and Heated Substrate Reactor written by Robert M. Galasso and published by . This book was released on 1994 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
