Author: Tong CuiPublisher:
ISBN:
Category : Mathematical models
Languages : en
Pages : 260
Book Description
Numerical Modeling of Self-propagating High-temperature Synthesis Reaction Wave Propagating Speed Using Various Thermal Conductivity Values for Solid-solid Reaction
Author: Tong CuiPublisher:
ISBN:
Category : Mathematical models
Languages : en
Pages : 260
Book Description
Self-Propagating High-Temperature Synthesis of Materials
Author: Anatoli A. BorisovPublisher: CRC Press
ISBN: 9781560329787
Category : Science
Languages : en
Pages : 348
Book Description
Self-Propagating High-Temperature Synthesis of Materials is a collection of papers that reflects modern trends in self-propagating, high-temperature synthesis (SHS), a process for synthesis of modern materials carried out in the mode of autowave solid-flame combustion. To date, SHS-produced materials have found their application in different branches of modern science and technology, mechanical engineering, ferrous and nonferrous metallurgy, aerospace engineering, chemical industry, electrical engineering, and electronics. This book is useful not only for the SHS community, but also for researchers and engineers who are active in the following related fields of knowledge; theory and practice of combustion, materials science and technology, pure and applied chemistry, and metallurgy.
Processing and Properties of Advanced Ceramics and Composites II
Author: Narottam P. BansalPublisher: John Wiley & Sons
ISBN: 0470930942
Category : Technology & Engineering
Languages : en
Pages : 322
Book Description
Three international symposia “Innovative Processing and Synthesis of Ceramics, Glasses and Composites”, “Ceramic Matrix Composites”, and “Microwave Processing of Ceramics” were held during Materials Science & Technology 2009 Conference & Exhibition (MS&T’09), Pittsburgh, PA, October 25-29, 2009. These symposia provided an international forum for scientists, engineers, and technologists to discuss and exchange state-of-the-art ideas, information, and technology on advanced methods and approaches for processing, synthesis and characterization of ceramics, glasses, and composites. A total of 83 papers, including 20 invited talks, were presented in the form of oral and poster presentations. Authors from 19 countries (Austria, Belarus, Brazil, Bulgaria, Canada, China, Egypt, France, Germany, India, Iran, Italy, Japan, Russia, South Korea, Taiwan, Turkey, U.K., and the United States) participated. The speakers represented universities, industries, and government research laboratories.
A Theoretical and Experimental Study of Self-propagating High- Temperature Synthesis of Titanium Carbide
Author: Ziaul HuquePublisher:
ISBN:
Category : Titanium carbide
Languages : en
Pages : 390
Book Description
Self-propagating high-temperature synthesis (SHS) is a new method of producing advanced ceramic materials and offers an attractive alternative to conventional methods of materials processing. An experimental investigation was carried out to determine the SHS reaction wave propagation speed in a vertical cylindrical compact made from a mixture of titanium and graphite powders. Ignition was accomplished by radiatively heating the top surface of the cylinder by resistively heated tungsten heating coils. Syntheses were carried out in inert argon environment and under atmospheric pressure. Propagation speeds were determined by analyzing the temperature distribution with time at two locations at known axial distance. Effects of various system parameters, such as, density and diameter of the initial compact, different mixing ratios of the reactants and dilution with product, on reaction propagation speed were determined. A numerical model was also developed to predict the propagation speed. A two-dimensional formulation was adopted with both radiative and natural convective heat loss from the periphery of the cylindrical compact using constant values of properties and kinetic parameters. Two different kinetic models describing the reactions involving solids are employed to calculate the wave speed using a finite difference scheme. The calculated results were compared with the experimental data. Trends of the results with Kanury kinetic model were found to be in better agreement with the experiments. Results showed no significant effect of heat loss on the propagation speed within a practical range of compact diameter. Quenching conditions of the reaction for titanium rich and carbon rich cases and also for the case of dilution with the product were identified. Variation of propagation speed with sample initial density showed a maximum value at densities between 2.1 gm/cm3 and 2.2 gm/cm3. During the synthesis, the samples were found to expand axially. Hence the final product obtained was highly porous with densities below 50% of the density of TiC.
Heat Transfer--Houston, 1988
Author: Salim B. YilmazPublisher:
ISBN:
Category : Science
Languages : en
Pages : 240
Book Description
AIChE Symposium Series
Author: American Institute of Chemical EngineersPublisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 764
Book Description
International Aerospace Abstracts
Author: Scientific and Technical Aerospace Reports
Author: Self-Propagating High-Temperature Synthesis
Author: Chang Chun GePublisher: Trans Tech Publications Ltd
ISBN: 303570399X
Category : Technology & Engineering
Languages : en
Pages : 236
Book Description
Self-Propagating High-Temperature Synthesis is an attractive advanced technology for the synthesis of a wide variety of advanced materials, including powders and near net-shape products formed from ceramics, intermetallics, composites and functionally graded materials, by exploiting the heat-energy released by the exothermic reaction of raw materials via a self-sustaining combustion wave which propagates from one end of the specimen to the other. When compared with traditional technologies, remarkable savings in energy, time and equipment, and novel forms of equilibrium and non-equilibrium phases and high-purity products can result from using SHS.
Advanced Chemical Kinetics
Author: Muhammad Akhyar FarrukhPublisher: BoD – Books on Demand
ISBN: 9535138154
Category : Science
Languages : en
Pages : 226
Book Description
The book on Advanced Chemical Kinetics gives insight into different aspects of chemical reactions both at the bulk and nanoscale level and covers topics from basic to high class. This book has been divided into three sections: (i) "Kinetics Modeling and Mechanism," (ii) "Kinetics of Nanomaterials," and (iii) "Kinetics Techniques." The first section consists of six chapters with a variety of topics like activation energy and complexity of chemical reactions; the measurement of reaction routes; mathematical modeling analysis and simulation of enzyme kinetics; mechanisms of homogeneous charge compression ignition combustion for the fuels; photophysical processes and photochemical changes; the mechanism of hydroxyl radical, hydrate electron, and hydrogen atom; and acceptorless alcohol dehydrogenation. The understanding of the kinetics of nanomaterials, to bridge the knowledge gap, is presented in the second section. The third section highlights an overview of experimental techniques used to study the mechanism of reactions.