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Molecular Beam Studies Of Hyperthermal Atomic Oxygen And Argon Interactions With Polymer Surfaces And Gas Phase Molecules
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Book Synopsis Molecular Beam Studies of Hyperthermal Atomic Oxygen and Argon Interactions with Polymer Surfaces and Gas-phase Molecules by : Amy Leigh Brunsvold
Download or read book Molecular Beam Studies of Hyperthermal Atomic Oxygen and Argon Interactions with Polymer Surfaces and Gas-phase Molecules written by Amy Leigh Brunsvold and published by . This book was released on 2007 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: O atoms and N2 molecules in the outer atmosphere of the Earth collide with spacecraft surfaces and various gases that are released from space vehicles. The high relative velocity of the collisions promotes high reaction probability and large energy transfers, leading to materials degradation and chemiluminescent reactions, which may interfere with the mission of the vehicle. The work presented in this thesis uses sophisticated molecular beam and surface science techniques to study materials degradation and individual reactive and inelastic collisions in an effort to understand the complex chemistry and physics that are characteristic of space vehicle interactions with Earth's upper atmosphere. A new space-durable polymer, polyhedral oligomeric silsesquioxane polyimide, has been identified. When exposed to atomic oxygen, this polymer forms a protective SiO2 layer on its surface. Beam-surface scattering experiments showed that collision-induced dissociation becomes an important gas-surface process when the translational energy of the incident atom or molecule is greater than 8 eV. Experiments on the dynamics of gas-phase collisions at hyperthermal collision energies found that inelastic collisions may transfer large amounts of energy into internal degrees of freedom. The scattering dynamics of the reactive 16OC product from the 16O( 3P) + C18O → 16OC + 18O reaction were quite unexpected, with 16OC predominantly forward scattered. Experiments on the reactions of O( 3P) with H2O demonstrated the occurrence of a previously unobserved reaction pathway, O(3P) + H2O → HO2 + H, with a barrier determined to be ∼2.6 eV. These studies of hyperthermal processes with molecular beam techniques have enabled us to identify a promising new material and to understand the detailed collision dynamics in model gas-surface and gas-phase systems. In each case, the experiments have revealed new chemical or energy transfer processes that were not considered earlier. These previously unknown processes reveal trends in hyperthermal collisions that will undoubtedly be critical to the planning and design of missions that put space vehicles in contact with the outer reaches of the Earth's atmosphere.
Book Synopsis Dynamics of Gas-Surface Interactions by : Ricardo Diez Muino
Download or read book Dynamics of Gas-Surface Interactions written by Ricardo Diez Muino and published by Springer Science & Business Media. This book was released on 2013-02-26 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a representative survey of the state of the art of research on gas-surface interactions. It provides an overview of the current understanding of gas surface dynamics and, in particular, of the reactive and non-reactive processes of atoms and small molecules at surfaces. Leading scientists in the field, both from the theoretical and the experimental sides, write in this book about their most recent advances. Surface science grew as an interdisciplinary research area over the last decades, mostly because of new experimental technologies (ultra-high vacuum, for instance), as well as because of a novel paradigm, the ‘surface science’ approach. The book describes the second transformation which is now taking place pushed by the availability of powerful quantum-mechanical theoretical methods implemented numerically. In the book, experiment and theory progress hand in hand with an unprecedented degree of accuracy and control. The book presents how modern surface science targets the atomic-level understanding of physical and chemical processes at surfaces, with particular emphasis on dynamical aspects. This book is a reference in the field.
Book Synopsis Research in the field of molecular collision phenomena using molecular beam techniques by : Sam S. Fisher
Download or read book Research in the field of molecular collision phenomena using molecular beam techniques written by Sam S. Fisher and published by . This book was released on 1970 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Interaction of Molecular Beams with Solid Surfaces by : Howard Saltsburg
Download or read book The Interaction of Molecular Beams with Solid Surfaces written by Howard Saltsburg and published by . This book was released on 1968 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gas-surface Interactions and Dynamics by : J. A. Barker
Download or read book Gas-surface Interactions and Dynamics written by J. A. Barker and published by . This book was released on 1985 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Interaction of a Pulsed Atomic Oxygen Beam with Various Surfaces by : James Ashton Riley
Download or read book The Interaction of a Pulsed Atomic Oxygen Beam with Various Surfaces written by James Ashton Riley and published by . This book was released on 1969 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1985 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interactions Between Hydrogen and Oxygen Atoms and Surfaces by : Joe N SMITH (Jr)
Download or read book Interactions Between Hydrogen and Oxygen Atoms and Surfaces written by Joe N SMITH (Jr) and published by . This book was released on 1964 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research is summarized on molecular-beam scattering experiments performed under well-defined and reproducible surface conditions. The microscopic details of the gas-surface interaction mechanism are discussed.
Book Synopsis Review of Molecular Beam Research in the M.I.T. Aeronautics and Astronautics Department 1970-1975 by : Leon Trilling
Download or read book Review of Molecular Beam Research in the M.I.T. Aeronautics and Astronautics Department 1970-1975 written by Leon Trilling and published by . This book was released on 1976 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the course of the research program into phenomena related to gas-surface interaction which the authors conducted over the last several years, the broad objective has been to seek answers to the following general question: Given a stream of gas molecules of known properties approaching a specified surface, how does one predict the velocity and flux distributions of the streams which leave the surface. Beginning with very simple configurations, they have attempted to account for an increasingly detailed extended set of properties of the solid surface, of the gas stream and of the interaction process. They have attempted to formulate the basic problem with a view to understanding molecular transport phenomena, first on inert metallic surfaces such as the skins of satellite vehicles in orbital flight, and later on ice crystals and nucleating centers in Brownian motion in the upper atmosphere. They have also begun to study the mechanism of interaction of molecular and atomic oxygen on graphite surfaces.
Book Synopsis Molecular Beam Studies of Atomic Oxygen by :
Download or read book Molecular Beam Studies of Atomic Oxygen written by and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards by :
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 1995 with total page 1138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theses on any subject submitted by the academic libraries in the UK and Ireland.
Book Synopsis Molecular Beam Studies of Energy Transfer in Molecule Surface Interactions by : Russell James@Cooper
Download or read book Molecular Beam Studies of Energy Transfer in Molecule Surface Interactions written by Russell James@Cooper and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Hypersonic Atomic Oxygen Molecular Beam Source by : Calvin K. Lam
Download or read book A Hypersonic Atomic Oxygen Molecular Beam Source written by Calvin K. Lam and published by . This book was released on 1976 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physical Chemistry of Cold Gas-phase Functional Molecules and Clusters by : Takayuki Ebata
Download or read book Physical Chemistry of Cold Gas-phase Functional Molecules and Clusters written by Takayuki Ebata and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes advanced research on the structures and photochemical properties of polyatomic molecules and molecular clusters having various functionalities under cold gas-phase conditions. Target molecules are crown ethers, polypeptides, large size protonated clusters, metal clusters, and other complex polyatomic molecules of special interest. A variety of advanced frequency and time-domain laser spectroscopic methods are applied. The book begins with the principle of an experimental setup for cold gas-phase molecules and various laser spectroscopic methods, followed by chapters on investigation of specific molecular systems. Through a molecular-level approach and analysis by quantum chemical calculation, it is possible to learn how atomic and molecular-level interactions (van der Waals, hydrogen-bonding, and others) control the specific properties of molecules and clusters. Those properties include molecular recognition, induced fitting, chirality, proton and hydrogen transfer, isomerization, and catalytic reaction. The information will be applicable to the design of new types of functional molecules and nanoparticles in the broad area that includes applied chemistry, drug delivery systems, and catalysts.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1992 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Beam Studies of the Interaction of Nitrogen Molecules with the Fe(111) Surface by : Alexander Robertson
Download or read book Molecular Beam Studies of the Interaction of Nitrogen Molecules with the Fe(111) Surface written by Alexander Robertson and published by . This book was released on 1985 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Beam Studies of Oxygen Atom Reactions with Unsaturated Hydrocarbons by : Annemarie Schmoltner
Download or read book Molecular Beam Studies of Oxygen Atom Reactions with Unsaturated Hydrocarbons written by Annemarie Schmoltner and published by . This book was released on 1989 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
