Download or read book Luminescence Process Refractory Stabilities and New and Novel Electronic States written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Oven systems for high temperature metal vaporization at temperatures in excess of 2000°C are being developed. Modifications of an apparatus appropriate to the production and study of small metal aggregates M/sub n/ (2 less than or equal to n less than or equal to 6) are discussed, including the construction and operation of argon ion and nitrogen pumped dye laser systems. The dye laser system is being used to induce fluorescence from small metal aggregates. Components necessary for interfacing the dye lasers and the aggregates apparatus are outlined. Production of carbon vapor and its reaction with metal atoms and dimers to form carbides are outlined. Initial studies on metal sulfide chemistry are discussed. Studies of the luminescence process are leading to an understanding of chemiluminescent phenomena occurring as a result of the bimolecular reaction of metal atoms and dimers with oxidants; they can be used for determining the upper bounds to the heats of sublimation and vaporization of those ''single collision'' reactions and for determining activation energies for formation of product molecules in a given excited state. Simple methods for inferring the radiative lifetimes of metastable product chemiluminescing molecules are outlined. Efforts are continued toward the formulation of catalytic surfaces via aggregate deposition. Completed chemiluminescence studies of titanium and vanadium oxide systems allowed the determination of a lower bound to the TiO and VO dissociation energies, the heats of vaporization of titanium and vanadium metal, and the nature of those metal atoms (ground or excited states) which react to yield observed chemiluminescence. (DLC).

Download or read book Luminescence Process Refractory Stabilities and New Novel Electronic States written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The formulation, development, and use of versatile oven systems for high temperature metal vaporization at temperatures in excess of 2000°C are discussed. Refinements of an apparatus appropriate for the production and study of small metal aggregates M/sub n/(2 less than or equal to n less than or equal to 6) are discussed at length. Improvements in the argon ion and nitrogen pumped dye laser systems, and necessary additions for effective interfacing of these dye lasers to the aggregates apparatus are described. Internal calibration standards are discussed. Progress on the production of carbon vapor and the reaction of this vapor with metal atoms and metal dimers to form metal carbides is outlined. Metal sulfide chemistry is discussed. Several specific studies of the luminescence process are outlined. Included in these studies are completed work on aluminum oxidation. Studies of germanium and silicon oxidation are outlined, and new investigations of inorganic hydride oxidation are presented. The status of our efforts to form new and novel surfaces via aggregate deposition is outlined. Quantum chemical calculations on small metal aggregates are discussed. The first applications of dynamic laser induced fluorescence to the AlO molecule are presented.

Download or read book Luminescence Process Refractory Stabilities and New and Novel Electronic States written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The formulation and development of versatile oven systems for high temperature metal vaporation at temperatures greater than 2000$sup 0$C are discussed. The construction of an apparatus appropriate to the production and study of small metal aggregates M/sub n/ (2 less than or equal to n less than or equal to 6) is discussed at length. This includes a consideration of the construction and operation of an argon ion pumped dye laser system. The dye laser system will be used to induce fluorescence from the small metal aggregates, and thereby will lead to the study of their molecular electronic structure. The production of carbon vapor and the reaction of this vapor with metal atoms and metal dimers to form metal carbides is outlined. A thorough study of the luminescence process leading to a new understanding of those chemiluminescent phenomena occurring as a result of the ''single collision'' bimolecular reaction of metal atoms and metal dimers with select oxidants is outlined. Methods for the determination of upper bounds to the heats of sublimation and vaporization of those metals which can be strongly oxidized in a ''single collision'' bimolecular reaction are presented. Extremely simple methods by which one can infer the radiative lifetimes of metastable product chemiluminescing molecules are also discussed. Beginning efforts toward the formulation of new and novel catalytic surfaces via aggregate deposition are outlined. Current studies of the titanium oxide system are presented. These chemiluminescence studies allow the determination of a lower bound to the TiO dissociation energy and a determination of the heat of vaporization of titanium metal. (auth).

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Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Aquatic Organic Matter Fluorescence written by Paula G. Coble and published by Cambridge University Press. This book was released on 2014-07-14 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: A core text on principles, laboratory/field methodologies, and data interpretation for fluorescence applications in aquatic science, for advanced students and researchers.