Download or read book Surface Studies Using the Mossbauer Effect written by J. W. Burton and published by . This book was released on 1965 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mossbauer effect, because of its sensitivity to strength and angular distribution of binding, to magnetic and electric fields, and to the density of s electrons at the nucleus, is used to study crystal surfaces. The theory involved is sketched, the experimental approach is reviewed, and experimental results are discussed.
Download or read book Surface studies using the M ssbauer effect written by Joseph Anthony Morice and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The M ssbauer Effect in Surface Studies written by Robert Paul Godwin and published by . This book was released on 1966 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book M ssbauer Studies of Surface Layers written by G. N. Belozerskiĭ and published by Elsevier Publishing Company. This book was released on 1993 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mouml;ssbauer spectroscopy has evolved as one of the few methods available for investigation of solids differing in depth by several orders of magnitude. This recent development has made the problems of surface investigation and the study of separate layers amenable to investigation. The parameters of the hyperfine interaction derived from the Mouml;ssbauer spectra provide valuable information on the chemical bond character and on magnetic properties of surface layers as well as on the change of the properties with the depth from the outermost surface layer. It is possible to carry out quantitative phase analysis and to use the technique to study different transformations in the solid which result from external effects under a wide range of temperatures and pressures. This book is one of the first attempts at a consistent presentation of theoretical and practical problems of the use of Mouml;ssbauer spectroscopy to study solid surfaces, its applications, and development. The applications include: surface studies with hyperfine probes in the following fields: oxidation and corrosion of metals and alloys: passivating and protective coatings: physics of metals: annealing and quenching, mechanical and chemical treatment, ion implantation and laser treatment; texture of near-surface layers. Mouml;ssbauer spectroscopy is one of the best methods for in situ characterization of solid/solid and solid/solution interfaces. It lends itself to in situ studies of surfaces under various coatings and processes, surface magnetism and the effect of the gas phase on the properties of the surface layers and the structure and magnetic properties of epitaxially grown monolayers on the surface of oriented single crystals.
Download or read book Applications of the M ssbauer Effect Chemistry written by Yu M. Kagan and published by CRC Press. This book was released on 1985 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of the M ssbauer Effect Applications in other fields written by I. S. Lyubutin and published by CRC Press. This book was released on 1985 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mossbauer Effect in Surface Studies Fe57 on W and on Ag written by J. W. Burton and published by . This book was released on 1966 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mossbauer effect at crystal surfaces is discussed. Fe57 on the surface of W and Ag has been measured under ultra-high vacuum. The W experiment yielded Debye temperatures of 406 plus or minus 12, 354 plus or minus 30, and 255 plus or minus 30K in the bulk, along the surface normal, and parallel to the surface, respectively. In Ag the bulk Debye temperature was 253 plus or minus 12K while the surface value was 380 plus or minus 30K and showed no angular dependence. Quadrupole splitting in both experiments indicated surface field gradients of about ( -3 x 10 to the 16th power Volts/cm2). (Author).
Download or read book M ssbauer Effect Methodology written by Irwin J. Gruverman and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the fifth volume of a series which provides acontinuing forum for publication of developments in Mossbauer effect methodology and of spectroscopy and its applications. Mossbauer Effect Methodology, Volume 5, records the proceedings of the Fifth Symposium on Mossbauer Effect Methodology. The sym posium was sponsored by the New England Nuclear Corporation and was centered on the themes of spectroscopy, new applications, and methodology. The symposium was held in the Mercury Ballroom of the New York Hilton hotel on February 2, 1969. Dr. P. A. Flinn of Carnegie Mellon Institute was chairman of the afternoon and evening sessions. About three hundred participants attended, and this degree of interest leads us to anticipate a sixth symposium early in 1970. Elron Electronic Industries and Reuter-Stokes Electronic Components Company demonstrated lines of equipment for Mossbauer investigators. The evident high quality of the commercial instrumenta tion available is a tribute to the growth of Mossbauer technology and to the manufacturers.
Download or read book Surface Studies Handbook written by and published by . This book was released on 1980 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface studies written by and published by . This book was released on 1986 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Studies written by John Gehret Stevens and published by . This book was released on 1980 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of the M ssbauer Effect written by I. S. Lyubutin and published by . This book was released on 1985 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book M ssbauer Effect Methodology written by I. Gruverman and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the tenth volume of a continuing series intended to provide a forum for publication of develop ments in f:lossbauer Effect t1ethodology and in Spectroscopy and its applications. r~ossbauer Effect t·1ethodo 1 ogy, Vo 1 ume 1 0, records the proceedings of the Tenth Symposium on r10ssbauer Effect Hethodo 1 ogy. The Sympos i urn \'laS sponsored by the Ne~" England Nuclear Corporation, with special emphasis on applications in catalysis and in biology. The Symposium VIaS held in the t, lercury Ballroom of the New York Hilton on February 1, 1976. Dr. f,1. Good presided over the meeting. 11ore than one hundred participants were involved in the technical sessions and the exhibit of H5ssbauer effect instruments, equipment and materials by Elscint, Inc., Ranger Engineering and New England Nuclear. Continued evolution and improvement was the keynote of the ex hi bi to As has been our experience in recent Symposia, many more papers were submitted than could be accommodated. The Selection Committee was hard-pressed to limit the number of papers, and the sessions were lengthy, despite their efforts.
Download or read book The Moessbauer Effect in Surface Studies Fe57 on Ag written by Robert Paul Godwin and published by . This book was released on 1966 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mossbauer effect for atoms located at crystal surfaces is discussed. We show that the Einstein model is valid for describing qualitatively the mean square displacement of lattice atoms. The mean square displacement (Mossbauer recoilless fraction) and mean square velocity (Mossbauer second-order Doppler shift) of atoms in one and three-dimensional crystals with free surfaces are treated in a many-body approach. The simple models indicate that at high temperatures surface atom mean square displacements are on the order of twice bulk atom mean square displacements (or equivalently that surface atom Debye temperatures are about 1/square root of 2 times the corresponding bulk values) and that surface effects penetrate only a few atomic spacings into a crystal. A possible temperature dependence of the Mossbauer isomer shift due to anharmonic binding forces at surfaces is pointed out. The experimental difficulties faced in a surface Mossbauer study performed under ultrahigh vacuum conditions and the apparatus used in an attempt to overcome them are described. Mossbauer spectra of Fe(57) on LiF, in Ag, and on Ag have been obtained in the temperature range 100 to 400 K. (Author).
Download or read book Industrial Applications of the M ssbauer Effect written by G.J Long and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: As is often the case, the preface is the last task to be finished during the preparation of a large volume such as you are now holding. The first task, obtaining approval for a symposium on the industrial applications, now seems a long time ago. The idea orginated with John Stevens, probably in 1982, from his observation of papers dealing with industrial applications of the Mossbauer effect appearing in the Mossbauer Effect Reference and Data Journal. His initial suggestion for a symposium entitled "Industrial Applications of the Mossbauer Effect" to be held at a national meeting of the American Chemical Society eventually led to the symposium at the International Chemical Congress of Pacific Basin Societies which met in Honolulu, Hawaii in December 1984. This volume is the result of the symposium at the above mentioned Congress, but is not actually the 'proceedings' of the symposium because this volume does not contain all of the over one hundred Mossbauer effect papers that were pre sented at the symposium. Rather it contains a selection of papers that the or ganizing committee for the symposium deemed most appropriate for a volume devoted to industrial applications of the Mossbauer effect. The final volume also contains six chapters that were not a part of the symposium but which are closely related to the topic. There is another difference from many proceedings.
Download or read book Characterization of Solid Surfaces written by Philip F. Kane and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 675 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until comparatively recently, trace analysis techniques were in general directed toward the determination of impurities in bulk materials. Methods were developed for very high relative sensitivity, and the values determined were average values. Sampling procedures were devised which eliminated the so-called sampling error. However, in the last decade or so, a number of developments have shown that, for many purposes, the distribution of defects within a material can confer important new properties on the material. Perhaps the most striking example of this is given by semiconductors; a whole new industry has emerged in barely twenty years based entirely on the controlled distribu tion of defects within what a few years before would have been regarded as a pure, homogeneous crystal. Other examples exist in biochemistry, metallurgy, polyiners and, of course, catalysis. In addition to this of the importance of distribution, there has also been a recognition growing awareness that physical defects are as important as chemical defects. (We are, of course, using the word defect to imply some dis continuity in the material, and not in any derogatory sense. ) This broadening of the field of interest led the Materials Advisory Board( I} to recommend a new definition for the discipline, "Materials Character ization," to encompass this wider concept of the determination of the structure and composition of materials. In characterizing a material, perhaps the most important special area of interest is the surface.
Download or read book Mossbauer Effect Studies of Surface Reactions written by Melvin C Hobson (Jr) and published by . This book was released on 1966 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: A constant-acceleration type Mossbauer spectrometer was constructed and employed in studies concerning the chemical reactivity of surface atoms. Particular attention was given to Mossbauer effect studies of the hydrogen-reduction of supported iron catalysts. Initial results indicate the probable state of the reduced iron is a mixed ferrous-ferric oxide in the form of very small particles on the surface of the silica gel support.
