Irreversible Effects of High Temperature and High Pressure on Organic Materials

Irreversible Effects of High Temperature and High Pressure on Organic Materials PDF

Author: E. J. Bradbury

Publisher:

Published: 1965

Total Pages: 30

ISBN-13:

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Equipment and techniques employed in ultrahigh-pressure-compression treatment of polymeric materials are described. Results of exploratory studies with several organic polymers, semiorganic compounds, and several chemical compounds are presented and discussed with respect to similar or related studies found in the literature. Physical and structural changes were found as a result of compression treatment on different materials. Although generically related materials appeared to have somewhat similar compression behavior, no general compression effect was observed.

The Effects of High Pressure, High Temperature Hydrogen on Steel

The Effects of High Pressure, High Temperature Hydrogen on Steel PDF

Author: Ellis E. Fletcher

Publisher:

Published: 1964

Total Pages: 82

ISBN-13:

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This report deals with the deleterious effects of hydrogen gas on steel at elevated temperatures and/or pressures. Hydrogen attack on steels is manifest as decarburization, intergranular fissuring, or blistering. These conditions result in lowered tensile strength, ductility, and impact strength. The reaction of hydrogen with iron carbide to form methane is probably the most important chemical reaction involved in the attack on steel by hydrogen. Attack of steel at elevated temperatures and pressures is limited or prevented by the following measures: (1) use of steel alloyed with strong carbide-forming elements, (2) use of liners of resistant alloy steels, and (3) substitution of resistant nonferrous alloys.

Materials Under Extreme Conditions: Molecular Crystals At High Pressure

Materials Under Extreme Conditions: Molecular Crystals At High Pressure PDF

Author: Vincenzo Schettino

Publisher: World Scientific

Published: 2013-11-20

Total Pages: 373

ISBN-13: 1783264314

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High-pressure materials research has been revolutionized in the past few years due to technological breakthroughs in the diamond anvil cell (DAC), shock wave compression and molecular dynamic simulation (MD) methods. The application of high pressure, especially together with high temperature, has revealed exciting modifications of physical and chemical properties even in the simplest molecular materials.Besides the fundamental importance of these studies to understand the composition and the dynamics of heart and planets' interior, new materials possessing peculiar characteristics of hardness and composition have been synthesized at very high pressure, while unexpected chemical reactions of simple molecules to polymers and amorphous compounds have been found at milder conditions.The variety of the phenomena observed in these extreme conditions and of the materials involved provides a common ground bridging scientific communities with different cultural and experimental backgrounds. This monograph will provide a timely opportunity to report on recent progress in the field.

Science and Technology of High Pressure

Science and Technology of High Pressure PDF

Author: Murli H. Manghnani

Publisher: Universities Press

Published: 2000

Total Pages: 650

ISBN-13: 9788173713385

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These books presents a wide spectrum of research and development activities in the field of High Pressure Science and Technology. These book provide comprehensive and interdisciplinary descriptions of recent research accomplishments in the biological, chemical, Earth, materrals, physical, physiological and related sciences.

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