Download or read book The Sintering of Silicon Carbide with Liquid Aluminum written by David Lloyd Milius and published by . This book was released on 1986 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liquid Phase Sintering of Silicon Carbide written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid phase sintering is used to densify silicon carbide based ceramics using a compound comprising a rare earth oxide and aluminum oxide to form liquids at temperatures in excess of 1600.degree. C. The resulting sintered ceramic body has a density greater than 95% of its theoretical density and hardness in excess of 23 GPa. Boron and carbon are not needed to promote densification and silicon carbide powder with an average particle size of greater than one micron can be densified via the liquid phase process. The sintered ceramic bodies made by the present invention are fine grained and have secondary phases resulting from the liquid phase.

Download or read book The Liquid Phase Sintering of Silicon Carbide written by Graham Paul Dransfield and published by . This book was released on 1986 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Silicon Carbide Ceramics 1 written by S. Somiya and published by Springer Science & Business Media. This book was released on 1991-08-31 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discovered by Edward G. Acheson about 1890, silicon carbide is one of the oldest materials and also a new material. It occurs naturally in meteorites, but in very small amounts and is not in a useable state as an industrial material. For industrial require ments, large amounts of silicon carbide must be synthesized by solid state reactions at high temperatures. Silicon carbide has been used for grinding and as an abrasive material since its discovery. During World War II, silicon carbide was used as a heating element; however, it was difficult to obtain high density sintered silicon carbide bodies. In 1974, S. Prochazka reported that the addition of small amounts of boron compounds and carbide were effective in the sintering process to obtain high density. It was then possible to produce high density sintered bodies by pressureless sintering methods in ordinary atmosphere. Since this development, silicon carbide has received great attention as one of the high temperature structural ceramic materials. Since the 1970s, many research papers have appeared which report studies of silicon carbide and silicon nitride for structural ceramics.

Download or read book Liquid Phase Sintering of Silicon Carbide written by Yufeng Huang and published by . This book was released on 1993 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Production of Aluminum Silicon Carbide Composites Using Powder Metallurgy at Sintering Temperatures Above the Aluminum Melting Point written by W. M. Khairaldien and published by . This book was released on 2007 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The extensive utilization of aluminum reinforced with silicon carbide in different structural applications has motivated the need to find a cost effective technological production method for these composites. Homogeneity, machinability, and interfacial reaction of the constituents represent the significant problems pertaining to these composites. Production of a homogenous, high strength, and net-shape structural components made from aluminum-silicon carbide composites can be achieved using powder metallurgy (PM) technology. In the present work the problem of low strength of the aluminum-silicon carbide produced by powder metallurgy is solved by raising the sintering temperature of the composite above the melting temperature of the aluminum. This method produces a local fusing and welding of the aluminum particles. Using aluminum powder with a thick oxide layer surrounding the particles prevents the total melting of the composite. Green compacted specimens containing 0, 5, 10, 15, 20, 25, and 30 wt % silicon carbide were prepared. Samples from each composition were sintered at 650, 700, 750, 800, 850, and 900°C separately, while other specimens were left without sintering for comparison. Microstructure examination, a microhardness test, and a compression test were carried out for each of the 49 combinations of SiC contents and sintering temperatures to study the effect of sintering temperature and SiC contents on the composite properties and to detect the optimum sintering temperature for each SiC weight percent. Generally the results show the tendency for both strength and ductility to increase upon increase in the sintering temperature. These specific sintering temperature levels are found to be 650°C for the aluminum with no silicon carbide content, 700°C for composites containing both 5 and 10 wt % SiC, 750°C for composites containing 15 wt % SiC, 800°C for composites containing 20 wt % SiC, 850°C for composites containing 25 wt % SiC, and 900°C for composites containing 30 wt % SiC.

Download or read book Liquid Phase Sintering of Silicon Carbide written by Eva Wong and published by . This book was released on 1993 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Role of Al on the Microstructure and Mechanical Properties of Hot pressed ABC SiC written by Qing Yang (M.S.) and published by . This book was released on 2001 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Silicon Carbide Ceramics written by S. Somiya and published by Springer Science & Business Media. This book was released on 1991-08-31 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon carbides have major industrial uses as high temperature structural ceramic materials. These two volumes are translated from the Japanese and provide a comprehensive account of the seminal work going on in Japan.

Download or read book Ceramic Materials and Components for Engines written by Jürgen G. Heinrich and published by John Wiley & Sons. This book was released on 2008-11-21 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several ceramic parts have already proven their suitability for serial application in automobile engines in very impressive ways, especially in Japan, the USA and in Germany. However, there is still a lack of economical quality assurance concepts. Recently, a new generation of ceramic components, for the use in energy, transportation and environment systems, has been developed. The efforts are more and more system oriented in this field. The only possibility to manage this complex issue in the future will be interdisciplinary cooperation. Chemists, physicists, material scientists, process engineers, mechanical engineers and engine manufacturers will have to cooperate in a more intensive way than ever before. The R&D activities are still concentrating on gas turbines and reciprocating engines, but also on brakes, bearings, fuel cells, batteries, filters, membranes, sensors and actuators as well as on shaping and cutting tools for low expense machining of ceramic components. This book summarizes the scientific papers of the 7th International Symposium "Ceramic Materials and Components for Engines". Some of the most fascinating new applications of ceramic meterials in energy, transportation and environment systems are presented. The proceedings shall lead to new ideas for interdisciplinary activities in the future.

Download or read book Microstructural Control of Silicon Carbide Via Liquid Phase Sintering written by Sharon Robinson Mrotek and published by . This book was released on 1998 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ALUMINUM SILICON CARBIDE COMPOSITE PROCESSED BY FIELD ASSISTED SINTERING TECHNIQUE written by Sven Alagic and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Aluminum is widely used in aerospace structural components because of its low cost, light weight, and high strength properties. Aluminum silicon carbide composites are an opportunity to reduce weight of these structural components without sacrificing strength. Aluminum and silicon carbide have similar densities (2.6 and 3.21 g/cm3 respectively), but silicon carbide has much higher hardness and strength. In this thesis, improved hardness, elastic modulus, yield strength, and ultimate tensile strength were achieved in an aluminum alloy based composite system by the addition of silicon carbide particles. Bulk baseline samples as well as samples containing various amounts of SiC were manufactured using Field Assisted Sintering Technology (FAST). Hardness was found to improve from 130 HV in ECKA Al-Alloy to 207 HV in Al Alloy with 40% SiC composite (60% improvement). This improvement was accompanied with an improvement in elastic modulus from 81 GPa in ECKA Aluminum Alloy to 126 GPa in Aluminum Alloy with 40% SiC (40% improvement). Yield strength improved from 211 to 417 MPa (97% improvement) and ultimate tensile strength improved from 308 to 472 MPa (50% improvement) for these materials.The microstructure of the samples revealed a homogeneous dispersion of silicon carbide particles throughout the aluminum matrix. The improvement in specific strength was 50% over the baseline aluminum alloy. The samples have been used as extrusion feedstock as a proof of concept for eventual structural applications.

Download or read book Interaction Between Silicon Carbide Particles and the Solid liquid Interface in Aluminum Based Metal Matrix Composites written by Ahmet Sedat Kacar and published by . This book was released on 1988 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liquid Phase Sintering of Silicon Carbide with AlN Re2O3 Additives written by Laner Wu and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid Phase Sintering of Silicon Carbide with AlN-Re2O3 Additives.

Download or read book Metal and Ceramic Matrix Composites written by Brian Cantor and published by CRC Press. This book was released on 2003-11-01 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions from leading experts in their respective fields, Metal and Ceramic Matrix Composites provides a comprehensive overview of topics on specific materials and trends. It is a subject regularly included as a final year option in materials science courses and is also of much industrial and academic interest. The book begins wit

Download or read book Field Assisted Sintering written by Eugene A. Olevsky and published by Springer. This book was released on 2018-08-09 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents the first ever scientific monograph including an in-depth analysis of all major field-assisted sintering techniques. Until now, the electromagnetic field-assisted technologies of materials processing were lacking a systematic and generalized description in one fundamental publication; this work promotes the development of generalized concepts and of comparative analyses in this emerging area of materials fabrication. This book describes modern technologies for the powder processing-based fabrication of advanced materials. New approaches for the development of well-tailored and stable structures are thoroughly discussed. Since the potential of traditional thermo-mechanical methods of material treatment is limited due to inadequate control during processing, the book addresses ways to more accurately control the resultant material's structure and properties by an assisting application of electro-magnetic fields. The book describes resistance sintering, high-voltage consolidation, sintering by low-voltage electric pulses (including spark plasma sintering), flash sintering, microwave sintering, induction heating sintering, magnetic pulse compaction and other field-assisted sintering techniques. Includes an in-depth analysis of all major field-assisted sintering techniques; Explains new techniques and approaches for material treatment; Provides detailed descriptions of spark plasma sintering, microwave sintering, high-voltage consolidation, magnetic pulse compaction, and various other approaches when field-assisted treatment is applied.

Download or read book Proceedings of the Unified International Technical Conference on Refractories UNITECR 2013 written by Dana Goski and published by John Wiley & Sons. This book was released on 2014-02-10 with total page 1404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings containing 231 manuscripts that were submitted and approved for the 13th biennial worldwide refractories congress recognized as the Unified International Technical Conference on Refractories(UNITECR), held September 10-13, 2013.