Verlag: Allied Publishers Pvt. Ltd. Allied, 2024
ISBN 10: 9389934869 ISBN 13: 9789389934861
Sprache: Englisch
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Verlag: Allied Publishers Pvt. Ltd., 2024
ISBN 10: 9389934869 ISBN 13: 9789389934861
Sprache: Englisch
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Verlag: Allied Publishers Pvt. Ltd., 2024
ISBN 10: 9389934869 ISBN 13: 9789389934861
Sprache: Englisch
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Verlag: Allied Publishers Pvt Ltd, New Delhi, 2025
ISBN 10: 9390951127 ISBN 13: 9789390951123
Sprache: Englisch
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Paperback. Zustand: new. Paperback. Graphite commonly called as plumbago is a soft, black crystalline form of naturally occurring carbon. Natural graphite is often found with carbonates and other carbon compounds and could be the result of their decomposition under conditions of high pressure and high temperature. Perfect crystals of graphite are very rare indeed and the imperfections and grain boundaries present in the materials are important in determining the properties of material. Impurities and absorbed gases also play an important role. Carbon materials are basically porous, having pores and cracks, sizes varying from angstrom units to several millimetre. The cracks often run along the lamellae of the carbon plane. India has a rich deposit of graphite. The total reserves of graphite in India is about 48 lakh tonnes. Properties of graphite varies from source to source depending on the mineral content, degree of graphitisation, crystal size, nature of crack and pores, specific surface areas, etc. Bulk of the graphite consumption is from the refractory Industry and major graphite suppliers in India are located in three states of India, i.e. Orissa, Jharkhand and Tamilnadu. Refractory industry uses graphite in purer form as higher ash percentage and lower degree of graphitisation deteriorates the refractory property. In presence of oxidising atmosphere, graphite oxidises very fast and deteriorates the brick property. Better the oxidation resistance of graphite better is the usefulness. The findings is expected to give an insight into the physico-chemical characteristics of Indian graphite which will ultimately lead to their best possible industrial and technological application. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.
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Verlag: Allied Publishers Pvt. Ltd., 2025
ISBN 10: 9389934869 ISBN 13: 9789389934861
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Verlag: Allied Publishers Pvt. Ltd., 2025
ISBN 10: 9390951127 ISBN 13: 9789390951123
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Verlag: Allied Publishers Pvt. Ltd., 2025
ISBN 10: 9389934869 ISBN 13: 9789389934861
Sprache: Englisch
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Verlag: Allied Publishers Pvt. Ltd., 2025
ISBN 10: 9390951127 ISBN 13: 9789390951123
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Verlag: Allied Publishers Pvt Ltd, New Delhi, 2025
ISBN 10: 9390951127 ISBN 13: 9789390951123
Sprache: Englisch
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In den WarenkorbPaperback. Zustand: new. Paperback. Graphite commonly called as plumbago is a soft, black crystalline form of naturally occurring carbon. Natural graphite is often found with carbonates and other carbon compounds and could be the result of their decomposition under conditions of high pressure and high temperature. Perfect crystals of graphite are very rare indeed and the imperfections and grain boundaries present in the materials are important in determining the properties of material. Impurities and absorbed gases also play an important role. Carbon materials are basically porous, having pores and cracks, sizes varying from angstrom units to several millimetre. The cracks often run along the lamellae of the carbon plane. India has a rich deposit of graphite. The total reserves of graphite in India is about 48 lakh tonnes. Properties of graphite varies from source to source depending on the mineral content, degree of graphitisation, crystal size, nature of crack and pores, specific surface areas, etc. Bulk of the graphite consumption is from the refractory Industry and major graphite suppliers in India are located in three states of India, i.e. Orissa, Jharkhand and Tamilnadu. Refractory industry uses graphite in purer form as higher ash percentage and lower degree of graphitisation deteriorates the refractory property. In presence of oxidising atmosphere, graphite oxidises very fast and deteriorates the brick property. Better the oxidation resistance of graphite better is the usefulness. The findings is expected to give an insight into the physico-chemical characteristics of Indian graphite which will ultimately lead to their best possible industrial and technological application. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.
Verlag: Taylor & Francis Ltd, London, 2025
ISBN 10: 103260610X ISBN 13: 9781032606101
Sprache: Englisch
Anbieter: Grand Eagle Retail, Bensenville, IL, USA
Paperback. Zustand: new. Paperback. This text showcases recent advancements in the field of microwave engineering, starting from the use of innovative materials to the latest microwave applications. It also highlights safety guidelines for exposure to microwave and radio frequency energy. The book provides information on measuring circuit parameters and dielectric parameters.Explains microwave antennas, microwave communication, microwave propagation, microwave devices, and circuits in detailCovers microwave measurement techniques, radiation hazards, space communication, and safety measuresFocuses on advanced computing technologies, wireless communication, and fiber opticsPresents scattering matrix and microwave passive components and devices such as phase shifters and power dividersShowcases the importance of space communication, radio astronomy, microwave material processing, and advanced computing technologiesThe text provides a comprehensive study of the foundations of microwave heating and its interactions with materials for various applications. It also addresses applications of microwave devices and technologies in diverse areas, including computational electromagnetics, remote sensing, transmission lines, radiation hazards, and safety measures. It emphasizes the impact of resonances on microwave power absorption and the effect of nonuniformity on heating rates. The text is primarily written for senior undergraduate students, graduate students, and academic researchers in the fields of electrical engineering, electronics and communication engineering, computer engineering, and materials science. The text showcases the recent advancements in the field of microwave engineering, starting from the use of innovative materials to the latest microwave applications. It will also highlight safety guidelines for exposure to microwave and radio frequency energy. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.
Verlag: Allied Publishers Pvt. Ltd., 2025
ISBN 10: 9390951127 ISBN 13: 9789390951123
Sprache: Englisch
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering.
Verlag: Allied Publishers Pvt. Ltd., 2024
ISBN 10: 9389934869 ISBN 13: 9789389934861
Sprache: Englisch
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Taschenbuch. Zustand: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Graphite is naturally found in association with various minerals and impurities, typically exhibiting a low percentage of fixed carbon. To enhance its purity, the material undergoes a sequence of crushing, grinding, and beneficiation processes. With repeated beneficiation, the fixed carbon content increases significantly, leading to the production of high-purity graphite. In India, the primary sources of graphite include Palamau in Jharkhand, Bolangir in Odisha, and Shivaganga in Tamil Nadu.Following physico-chemical evaluation of these graphite samples, their oxidation behavior was analyzed using Differential Thermal Analysis (DTA) and Thermogravimetric Analysis (TGA). The experiments were conducted under controlled atmospheres to investigate the reaction kinetics and determine the activation energy under specific conditions. Three oxidation temperatures were selected based on the oxidation peaks observed in the DTA/TGA curves.Kinetic modeling revealed that up to certain temperatures, the oxidation rate was primarily governed by the chemical reaction between carbon and oxidizing gas at the interface. At higher temperatures, a shift from chemical control to diffusion through a decarburized pore zone was observed. The oxidation process corresponded to models such as the phase boundary-controlled reaction, contracting disc, and two-dimensional diffusion.The formation of a decarburized zone alters the activation energy, reflecting a transition in mechanism. Additionally, particle size variations influence activation energy values, showing multiple slopes across temperature ranges.
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In den WarenkorbPAP. Zustand: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.