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Book Transient Numerical Simulation of Sublimation Growth of SiC Bulk Single Crystals

Download or read book Transient Numerical Simulation of Sublimation Growth of SiC Bulk Single Crystals written by Peter Philip and published by . This book was released on 2003 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Transient Numerical Study of Termperature Gradients During Sublimation Growth of SiC

Download or read book Transient Numerical Study of Termperature Gradients During Sublimation Growth of SiC written by and published by . This book was released on 2005 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a transient mathematical heat transfer model including heat conduction, radiation, and radio frequency (RF) induction heating, we numerically investigate the time evolution of temperature gradients in axisymmetric growth apparatus during sublimation growth of silicon carbide (SiC) bulk single crystals by physical vapor transport (PVT) (modified Lely method). Temperature gradients on the growing crystal's surface can cause defects. Here, the evolution of these gradients is studied numerically during the heating process, varying the apparatus design, namely the amount of the source powder charge as well as the size of the upper blind hole used for cooling of the seed. Our results show that a smaller upper blind hole can reduce the temperature gradients on the surface of the seed crystal without reducing the surface temperature itself.

Book Near Thermal Equilibrium Growth of 4H 6H and 15R silicon Carbide Single Crystals

Download or read book Near Thermal Equilibrium Growth of 4H 6H and 15R silicon Carbide Single Crystals written by Norbert Schulze and published by . This book was released on 2001 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Single Crystals of Electronic Materials

Download or read book Single Crystals of Electronic Materials written by Roberto Fornari and published by Woodhead Publishing. This book was released on 2018-09-18 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single Crystals of Electronic Materials: Growth and Properties is a complete overview of the state-of-the-art growth of bulk semiconductors. It is not only a valuable update on the body of information on crystal growth of well-established electronic materials, such as silicon, III-V, II-VI and IV-VI semiconductors, but also includes chapters on novel semiconductors, such as wide bandgap oxides like ZnO, Ga2, O3, In2, O3, Al2, O3, nitrides (AIN and GaN), and diamond. Each chapter focuses on a specific material, providing a comprehensive overview that includes applications and requirements, thermodynamic properties, schematics of growth methods, and more. - Presents the latest research and most comprehensive overview of both standard and novel semiconductors - Provides a systematic examination of important electronic materials, including their applications, growth methods, properties, technologies and defect and doping issues - Takes a close look at emerging materials, including wide bandgap oxides, nitrides and diamond

Book Advances in Ceramic Armor VII Volume 32 Issue 5

Download or read book Advances in Ceramic Armor VII Volume 32 Issue 5 written by Jeffrey J. Swab and published by John Wiley & Sons. This book was released on 2011-11-11 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of papers from The American Ceramic Society's 35th International Conference on Advanced Ceramics and Composites, held in Daytona Beach, Florida, January 23-28, 2011. This issue includes papers presented in the Armor Ceramics Symposium on topics such as Manufacturing; High-Rate Real-Time Characterization; Microstructural Design; Nondestructive Characterization; and Phenomenology and Mechanics of Ceramics Subjected to Ballistic Impact.

Book Smart Materials

Download or read book Smart Materials written by Karl-Heinz Hoffmann and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: With this proceedings volume a new series of publications is started which will present the results of interdisciplinary research activities in the fields of materials science, coupling of biological and electronic systems and commu nication ergonomy. It will contain the contributions of the participants of the caesarium, a conference caesar will organize annually. The 1 st caesarium was held in Bonn on November 17-19, 1999 concentrating on Smart Materials. With the caesarium the recently founded research center caesar (center of advanced european studies and research) creates a forum for discussion of new developments in its fields of activities. caesar is an international research center, focusing on applied, interdisciplinary research projects in the areas of science and engineering. It was established as an independent foundation under private law as part of the compensatory actions under the Berlin/Bonn law of April 26, 1994 to support the structural change in the region of Bonn, when the German Government moved from Bonn to Berlin. The main donors of caesar are the Federal Republic of Germany and the State of North Rhine-Westphalia. A Board consisting of state and federal leg islators, members from the research community and industry and a Scientific Advisory Council assist caesar in all decisions concerning administration and research.

Book Modeling of the Sublimation Growth of Silicon Carbide Crystals

Download or read book Modeling of the Sublimation Growth of Silicon Carbide Crystals written by Peter Råback and published by . This book was released on 1999 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Mathematics Key Technology for the Future

Download or read book Mathematics Key Technology for the Future written by Willi Jäger and published by Springer Science & Business Media. This book was released on 2011-06-28 with total page 733 pages. Available in PDF, EPUB and Kindle. Book excerpt: Efficient transfer between science and society is crucial for their future development. The rapid progress of information technology and computer systems offers a large potential and new perspectives for solving complex problems. Mathematical modelling and simulation have become important tools not only in scientific investigations but also in analysing, planning and controlling technological and economic processes. Mathematics, imbedded in an interdisciplinary concept, has become a key technology. The book covers the results of a variety of major projects in industrial mathematics following an initiative of the German Federal Ministry of Education and Research. All projects are collaborations of industrial companies and university-based researchers, and range from automotive industry to computer technology and medical visualisation. In general, the projects presented in this volume prove that new mathematical ideas and methods can be decisive for the solution of industrial and economic problems.

Book The Growth of SiC Crystals from Vapor by the Bridgman Stockbarger Method

Download or read book The Growth of SiC Crystals from Vapor by the Bridgman Stockbarger Method written by Juris Smiltens and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the dissociation curve (P vs. T), an equation for the rate of raising the pressure P of the binary vapor for obtaining the required linear growth rate of the crystal of c centimeters per hour is derived. It is shown that the rate is nearly proportional to P. Modifications of the furnace since the last report (Mat. Res. Bull. 4, S85, 1969) are described. Justification for the use of helium as the inert ambient gas is given. Two techniques are used: (1) growing with constant temperature of the crucible point and (2) growing with constant pressure of the sublimation bottle. To date, only polycrystalline boules consisting of large grains have been obtained. It is believed, however, that with certain technological improvements the methods that are developed here will ultimately yield single crystal boules. As a by-product, small cubic crystals, about one mm in the largest dimension, with good quality faces (cube and octahedron) have been obtained.

Book Decomposition Methods for Differential Equations

Download or read book Decomposition Methods for Differential Equations written by Juergen Geiser and published by CRC Press. This book was released on 2009-05-20 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decomposition Methods for Differential Equations: Theory and Applications describes the analysis of numerical methods for evolution equations based on temporal and spatial decomposition methods. It covers real-life problems, the underlying decomposition and discretization, the stability and consistency analysis of the decomposition methods, and num

Book Optimizing the Temperature Profile During Sublimation Growth of SiC Single Crystals

Download or read book Optimizing the Temperature Profile During Sublimation Growth of SiC Single Crystals written by Christian Meyer and published by . This book was released on 2003 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Macro And Micor Simulations For A Sublimation Growth Of Sic Single Crystals

Download or read book Macro And Micor Simulations For A Sublimation Growth Of Sic Single Crystals written by Jürgen Geiser and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: