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X Ray Absorption Study Of The Local Unoccupied D States And Local Atomic Structure In Transition Metal Metalloid Metallic Glasses
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Book Synopsis X-ray Absorption Study of the Local Unoccupied "d" States and Local Atomic Structure in Transition Metal-metalloid Metallic Glasses by : Myung Hi Choi
Download or read book X-ray Absorption Study of the Local Unoccupied "d" States and Local Atomic Structure in Transition Metal-metalloid Metallic Glasses written by Myung Hi Choi and published by . This book was released on 1985 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1985 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts written by and published by . This book was released on 1990 with total page 1342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Dissertation Index by :
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1989 with total page 1116 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 1984 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomic Structure of Transitional Metal Based Metallic Glasses by : Arthur Ray Williams
Download or read book Atomic Structure of Transitional Metal Based Metallic Glasses written by Arthur Ray Williams and published by . This book was released on 1981 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The atomic-scale structure of several transition metal-based metallic glasses has been investigated by X-ray diffraction techniques. Current dense random packing models have been found to have only a superficial resemblance to the structure of real amorphous metallic alloys, and a theoretical density for amorphous transition metals has been obtained which might be used as a filter for more realistic single component models in the future. The partial pair distribution functions for individual pairs of atomic species have been obtained for glassy alloys of lanthanum with aluminum, gallium and gold through the use of isomorphous alloys. These systems have been demonstrated to be chemically ordered and the short range order of these alloys has been shown to be quite different from that of typical amorphous transition metal-metalloid alloys.
Book Synopsis Deformation in Metallic Glasses Studied by Synchrotron X-ray Diffraction by :
Download or read book Deformation in Metallic Glasses Studied by Synchrotron X-ray Diffraction written by and published by . This book was released on 2016 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, high mechanical strength is one of the superior properties of metallic glasses which render them promising as a structural material. However, understanding the process of mechanical deformation in strongly disordered matter, such as metallic glass, is exceedingly difficult because even an effort to describe the structure qualitatively is hampered by the absence of crystalline periodicity. In spite of such challenges, we demonstrate that high-energy synchrotron X-ray diffraction measurement under stress, using a two-dimensional detector coupled with the anisotropic pair-density function (PDF) analysis, has greatly facilitated the effort of unraveling complex atomic rearrangements involved in the elastic, anelastic, and plastic deformation of metallic glasses. Even though PDF only provides information on the correlation between two atoms and not on many-body correlations, which are often necessary in elucidating various properties, by using stress as means of exciting the system we can garner rich information on the nature of the atomic structure and local atomic rearrangements during deformation in glasses.
Download or read book Metals Abstracts Index written by and published by . This book was released on 1983 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On the Density of Unoccupied D States in Transition Metal-metalloid Metallic Glasses by :
Download or read book On the Density of Unoccupied D States in Transition Metal-metalloid Metallic Glasses written by and published by . This book was released on 1983 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1988 with total page 1160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulk Metallic Glasses by : C. Suryanarayana
Download or read book Bulk Metallic Glasses written by C. Suryanarayana and published by CRC Press. This book was released on 2017-11-22 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the fast pace of research in the field, the Second Edition of Bulk Metallic Glasses has been thoroughly updated and remains essential reading on the subject. It incorporates major advances in glass forming ability, corrosion behavior, and mechanical properties. Several of the newly proposed criteria to predict the glass-forming ability of alloys have been discussed. All other areas covered in this book have been updated, with special emphasis on topics where significant advances have occurred. These include processing of hierarchical surface structures and synthesis of nanophase composites using the chemical behavior of bulk metallic glasses and the development of novel bulk metallic glasses with high-strength and high-ductility and superelastic behavior. New topics such as high-entropy bulk metallic glasses, nanoporous alloys, novel nanocrystalline alloys, and soft magnetic glassy alloys with high saturation magnetization have also been discussed. Novel applications, such as metallic glassy screw bolts, surface coatings, hyperthermia glasses, ultra-thin mirrors and pressure sensors, mobile phone casing, and degradable biomedical materials, are described. Authored by the world’s foremost experts on bulk metallic glasses, this new edition endures as an indispensable reference and continues to be a one-stop resource on all aspects of bulk metallic glasses.
Book Synopsis The X-ray Absorption Coefficients for Pyrex Glass by : Norman Todd
Download or read book The X-ray Absorption Coefficients for Pyrex Glass written by Norman Todd and published by . This book was released on 1950 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomic Structure of Transition Metal Based Metallic Glasses by : Arthur Williams
Download or read book Atomic Structure of Transition Metal Based Metallic Glasses written by Arthur Williams and published by . This book was released on 1981 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis X-ray Absorption Study by : Bernhard Frederick Cordts
Download or read book X-ray Absorption Study written by Bernhard Frederick Cordts and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis EXAFS Studies of the Local Atomic Environment in Metal-metal Glasses by :
Download or read book EXAFS Studies of the Local Atomic Environment in Metal-metal Glasses written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The interatomic distances and nearest neighbor coordinations of constituent atoms in a series of metal-metal glasses: M'/sub 100-x/M''/sub x/ where M' = Zr, Nb, M'' = Fe, Ni, Cu and x varies from 30 to 60 at %, have been determined using the EXAFS technique in conjunction with the x-ray synchrotron source at Stanford. Fourier transforms of the EXAFS signals clearly indicate there are like as well as unlike atom pairs in the first coordination shell about both the M' and M'' atoms. The ratio of like and unlike pairs scales linearly with composition and is indicative of random mixing in these binary glasses. The M'-M'' separation are shorter than sum of the Goldschmidt radii and implies chemical interaction between the M' and M'' atoms.
Book Synopsis Structure and Properties of Transition Metal-metalloid Glasses Based on Refractory Metals by :
Download or read book Structure and Properties of Transition Metal-metalloid Glasses Based on Refractory Metals written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The structure and properties of several new transition metal-metalloid (TM/sub 1-x/M/sub x/) metallic glasses based on refractory transition metals (e.g. Mo, W, Ru etc.) have been systemically investigated as a function of composition. The structure of the alloys has been investigated by x-ray diffraction methods and measurements of superconducting properties, electrical resistivity, density, hardness, and mechanical behavior were made. These data are used in developing a novel description of the structure of TM/sub 1-x/M/sub x/ glasses. The experimental evidence suggests that an ideal amorphous phase forms at a specific composition x/sub c/ and that this phase has a well defined atomic short range order. For metallic glasses having x x/sub c/ (metalloid poor glasses) vacancy-like defects form, which are characterized by the excess volume which they contribute to the glass. Another, as yet unspecified defect appears to form in glasses with x x/sub c/. This novel picture can explain the variation of many properties of these glasses with metalloid concentration.
Book Synopsis X-ray Absorption Study of the Electronic Structure of Mn-doped Amorphous Si by :
Download or read book X-ray Absorption Study of the Electronic Structure of Mn-doped Amorphous Si written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The electronic structure of Mn in amorphous Si (a-Mn(subscript x)Si{sub 1?x}) is studied by X-ray absorption spectroscopy at the Mn L{sub 3,2} edges for x = 0.005-0.18. Except the x = 0.005 sample, which shows a slight signature of Mn{sup 2+} atomic multiplets associated with a local Mn moment, all samples have broad and featureless L{sub 3,2} absorption peaks, corresponding to an itinerant state for all 3d electrons. The broad X-ray absorption spectra exclude the possibility of a localized 3d moment and explain the unexpectedly quenched Mn moment in this magnetically-doped amorphous semiconductor. Such a fully delocalized d state of Mn dopant in Si has not been previously suggested.
