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Vibrational Spectroscopy Of Shock Compressed Fluid N2 And O2
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Book Synopsis Vibrational Spectroscopy of Shock-compressed Fluid N2 and O2 by :
Download or read book Vibrational Spectroscopy of Shock-compressed Fluid N2 and O2 written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Single-pulse, multiplex, coherent anti-Stokes Raman scattering (CARS) was used to observe the vibrational spectra of liquid N2 shock-compressed to several pressures and temperatures up to 41 GPa and 5200 K and liquid O2 shock-compressed to several pressures and temperatures up to 10 GPa and 1000 K. For N2, the experimental spectra were compared to synthetic spectra calculated using a semiclassical model for CARS intensities and estimated vibrational frequencies, peak Raman susceptibilities and Raman line widths. The question of excited state populations in the shock-compressed state is addressed.
Book Synopsis Vibrational Spectroscopy in Shock-compressed Liquids by :
Download or read book Vibrational Spectroscopy in Shock-compressed Liquids written by and published by . This book was released on 1992 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coherent anti-Stokes Raman spectroscopy is being used to study the structure and energy transfer in simple molecular liquids at the high pressures and temperatures characteristic of explosive detonation. Dense fluids to several thousand degrees temperature and several hundred kilobars pressure are obtained using the shock-compression technique. Vibrational frequencies, third-order susceptibility ratios, and linewidths have been measured for N2, O2, CO, mixtures of N2, O2, and CO, and N2O. Frequencies are found to increase with pressure. The transition intensity and line-width data suggest that thermal equilibrium of the vibrational levels is attained in less than a few nanoseconds at these high pressures and temperatures. Vibrational temperatures obtained are compared to those derived from equation-of-state calculations.
Book Synopsis Vibrational Spectroscopy in High Temperature Dense Fluids by :
Download or read book Vibrational Spectroscopy in High Temperature Dense Fluids written by and published by . This book was released on 1992 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coherent anti-Stokes Raman spectroscopy (CARS) in conjunction with a two-stage light-gas gun has been used to obtain vibrational spectra of shock-compressed liquid N2, O2, CO, and their mixtures, as well as liquid N2O. The experimental spectra are compared to spectra calculated using a semiclassical model for CARS intensities to obtain vibrational frequencies, peak Raman susceptibilities, and linewidths. The derived spectroscopic parameters suggest thermal equilibrium of the vibrational populations is established in less than a few nanoseconds after shock passage. Vibrational temperatures obtained are compared to those derived from equation-of-state calculations. The variation of the vibrational frequency shift at pressure with species concentration in mixtures is investigated.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vibrational Spectroscopy of Shock-compressed Liquid CO. by :
Download or read book Vibrational Spectroscopy of Shock-compressed Liquid CO. written by and published by . This book was released on 1991 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single-pulse, multiplex, coherent anti-Stokes Raman spectroscopy (CARS) was used to observe the vibrational spectra of liquid CO shock compressed to several pressures and temperatures up to 9.9 GPa and 2010 K. The experimental spectra were compared to synthetic spectra calculated using a semiclassical model for CARS intensities and estimated vibrational frequencies, peak Raman susceptibilities and Raman line widths. A comparison of these data with result in the isoelectronic and materially very similar N2 show a significant difference in vibrational frequency shift with pressure. 21 refs., 2 figs.
Book Synopsis Shock Waves in Condensed Matter--1987 by : S. C. Schmidt
Download or read book Shock Waves in Condensed Matter--1987 written by S. C. Schmidt and published by North Holland. This book was released on 1988 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vibrational Spectroscopic Investigations of Shock-compressed Liquid Nitrogen and Shock-compressed Liquid Nitromethane by :
Download or read book Vibrational Spectroscopic Investigations of Shock-compressed Liquid Nitrogen and Shock-compressed Liquid Nitromethane written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibrational spectra of liquid nitrogen and liquid nitromethane shock compressed to several high pressure/high temperature states were recorded using single-pulse multiplex coherent anti-Stokes Raman scattering. Vibrational frequencies were extracted from the data by computer spectral simulation techniques. Vibrational frequencies of liquid nitrogen were found to increase monotonically up to /approx/17.5 GPa single shock and /approx/30 GPa double shock and then to decrease with further increases in pressure. The consequence of the decrease in vibrational frequency on the Grueneisen mode gamma and its effect on the N2 equation-of-state is discussed. A model is developed that includes the thermally-excited vibrational state transitions in the synthesized spectral fits of the nitromethane CARS data. The adequacy of the model for interpretation of CARS spectra in both ambient and shock-compressed nitromethane is discussed. 42 refs., 5 figs., 1 tab.
Book Synopsis Shock Compression of Condensed Matter - 1991 by : S.C. Schmidt
Download or read book Shock Compression of Condensed Matter - 1991 written by S.C. Schmidt and published by Elsevier. This book was released on 2016-07-29 with total page 1103 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers collected together in this volume constitute a review of recent research on the response of condensed matter to dynamic high pressures and temperatures. Inlcuded are sections on equations of state, phase transitions, material properties, explosive behavior, measurement techniques, and optical and laser studies. Recent developments in this area such as studies of impact and penetration phenomenology, the development of materials, especially ceramics and molecular dynamics and Monte Carlo simulations are also covered. These latest advances, in addition to the many other results and topics covered by the authors, serve to make this volume the most authoritative source for the shock wave physics community.
Book Synopsis Coherent Raman Spectroscopy by : Gerd Marowsky
Download or read book Coherent Raman Spectroscopy written by Gerd Marowsky and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress made during the last few years in nonlinear optics and quantum electronics has significantly increased our understanding of the interactionbetween light and matter. Of great importance are third-order nonlinear Raman techniques such as CARS, RIKES, SRS, and DFWM. This book reflects the state of the art in coherent Raman spectroscopy. The contributions together provide an overview of the various Raman techniques that make available information about the fine structure of molecular energy levels, the collisional dynamics of atoms and molecules, and processes of internal energy disipation. Some of the contributions also report on the application of local, nonperturbing diagnosic methods forthe determination of parameters such as composition, temperature, density, velocity, and energy distribution between the internal degrees of freedom.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1992-03 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shock Compression of Condensed Matter--2003 by : Michael D. Furnish
Download or read book Shock Compression of Condensed Matter--2003 written by Michael D. Furnish and published by . This book was released on 2004 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two volumes contain 350 papers presented at the 13th Biennial International Conference of the APS Topical Group on Shock Compression of Condensed Matter (Portland, Oregon, July 2003). One of the three plenary lectures was given by James Asay (Institute for Shock Physics, Washington State U., Pullman, Washington) on wave structure studies in condensed matter physics. The papers in v.1 address nonenergetic materials; energetic materials; phase transitions; the modeling, simulation, theory, and molecular dynamics modeling of nonreactive and reactive materials; spall, fracture, and fragmentation; constitutive and microstructural properties of metals; mechanical properties of polymers and composites; and mechanical properties of ceramics, glasses, ionic solids, and liquids. The largest number of papers in v.2 are under the headings mechanical properties of reactive materials; detonation and burn phenomena; explosive and initiation studies; experimental techniques; and geophysics, structures, and medical applications. The contributors represent 14 countries, where they work in state and private industry and academic settings. Indexed by both author and subject. Annotation :2004 Book News, Inc., Portland, OR (booknews.com).
Book Synopsis Molecular Spectroscopy of Dynamically Compressed Materials by : David S. Moore
Download or read book Molecular Spectroscopy of Dynamically Compressed Materials written by David S. Moore and published by Springer Nature. This book was released on 2022-07-04 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers historical and state-of-the-art molecular spectroscopy methods and applications in dynamic compression science, aimed at the upcoming generation in physical sciences involved in studies of materials at extremes. It begins with addressing the motivation for probing shock compressed molecular materials with spectroscopy and then reviews historical developments and the basics of the various spectroscopic methods that have been utilized. Introductory chapters are devoted to fundamentals of molecular spectroscopy, overviews of dynamic compression technologies, and diagnostics used to quantify the shock compression state during spectroscopy experiments. Subsequent chapters describe all the molecular spectroscopic methods used in shock compression research to date, including theory, experimental details for application to shocked materials, and difficulties that can be encountered. Each of these chapters also includes a section comparing static compression results. The last chapter offers an outlook for the future, which leads the next-generation readers to tackling persistent problems.
Book Synopsis Phase Transformations of Elements Under High Pressure by : E. Yu Tonkov
Download or read book Phase Transformations of Elements Under High Pressure written by E. Yu Tonkov and published by CRC Press. This book was released on 2018-10-08 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: As laboratories replace heavy hydraulic presses and bulky high-pressure chambers with miniature diamond anvils, traditional heaters with laser heating, and continue to improve methods of shock compression, there has been considerable new data obtained from the high-pressure, high-temperature modification of pure elements. The dense metallic modification of elements shows the potential for achieving superconductivity akin to theoretical predictions. Phase Transformations of Elements Under High Pressure contains the latest theoretical and experimental information on nearly 100 elements, including first-and second-phase transitions, melting lines, crystal structures of stable and metastable phases, stability of polymorphic modifications, and other useful properties and data. It emphasizes features such as changes in the liquid state, amorphization, and metallization, and provides temperature-pressure diagrams for every element. The book also describes the transitions of polymeric forms of fullerene, crystal modifications of elements stable under high pressures, and provides data that confirms their superconducting and magnetic properties. This handbook will be a lasting reference for scientists in a broad range of disciplines, including solid-state physics, chemistry, crystallography, mineralogy, and materials science.
Book Synopsis Shock Compression of Condensed Matter--1989 by : American Physical Society
Download or read book Shock Compression of Condensed Matter--1989 written by American Physical Society and published by North Holland. This book was released on 1990 with total page 1050 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the most up-to-date collection of research activities in the area of high-pressure shock compression. Current reviews and original research papers are given on theoretical and experimental aspects of high-pressure equations of state, on dynamic plastic response and strength of solids, on numerical simulation and modeling of material response, on fast optical techniques and other advances in experimental technique, on laser-driven shocks, on material modification and shock-induced defects, on geologic and geophysical materials, on dynamic compaction and on modeling and behavior of initiation in energetic materials. Six plenary, 13 invited and 203 research papers are presented.
Book Synopsis Applied Spectroscopy in Materials Science II by : William G. Golden
Download or read book Applied Spectroscopy in Materials Science II written by William G. Golden and published by . This book was released on 1992 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Compounds and Alloys Under High Pressure by : E. Yu Tonkov
Download or read book Compounds and Alloys Under High Pressure written by E. Yu Tonkov and published by Taylor & Francis. This book was released on 2022-11-30 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to classify and systematize the available data on the behavior of binary alloys under high pressure. Despite the fact that there is a strong correlation between temperature-composition (T-C) phase diagrams at normal pressure and three- dimensional temperature-composition-pressure (T-C-P) diagrams, many material scientists seldom refer to the (T-C-P) diagrams, just as many high pressure researchers often ignore the data obtained at normal pressure. This book aims to bridge the gap between data obtained at high pressure and that obtained at normal pressure. The most recent research covers not only elements and stoichiometric compounds, but also binary, ternary, and multicomponent alloys, and so this book covers an extended range of substances. The properties of 890 binary systems and a further 1153 pseudobinary and ternary systems are summarized, and accompanied by an extensive bibliography. The data includes information on the solubility of components in solid solutions, melting, and first- and second-order phase transformations in alloys and stoichiometric compounds.
Download or read book Physics Briefs written by and published by . This book was released on 1993 with total page 1420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
