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Author : Leonard Gordon Feinstein
Publisher :
ISBN 13 :
Total Pages : 86 pages
Book Rating : 4.:/5 (331 download)
Download or read book Neutron Diffraction Studies of Transition Metal Binary Alloys written by Leonard Gordon Feinstein and published by . This book was released on 1962 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. J. Lindley
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (593 download)
Download or read book Neutron Scattering Studies of Transition Metal Alloys written by E. J. Lindley and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William J. James
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (227 download)
Download or read book Neutron Diffraction Studies of Some Rare Earth-Transition Metal Deuterides written by William J. James and published by . This book was released on 1986 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutron diffraction experiments were performed on Ho6Mn23. At 77K it is found to have a face-centered cubic crystal structure and a non-collinear magnetic structure, with the Ho moments tilted at an angle of 33.4 to the Mn moments. The Ho atom carries a moment of 3.8 mu sub B, while the Mn moments at the b, d, f sub 1 and f sub 2 sites are 2.1, 2.0, 2.2 and 1.9 mu sub B respectively, comparable to those found in Y6Mn23. The very low moment on the Ho atom is rationalized as resulting from the fanning of the weakly coupled rare earth moments around the net Ho moment direction, giving a low spatially averaged value. Neutron diffraction studies of three Y6(Fe1-xAlx)23 compounds (x=0.05, 0.10, 0.15) at 523K and 77K reveal substantial preferential atomic ordering of Fe and Al atoms on the four transition crystallographic sites. The Fe atoms exhibit different magnetic moments on the four sites. The ternary alloys, Y6(FexMn1-x)23, exhibit interesting magnetic behavior over a range of solid solutions of iron and manganese. The effects of the substitution of Fe by Al in the R2 (Fe1-xAlx)14B compounds (R = Y, rare earths) on their magnetic properties have been investigated. The present experimental data indicate that intermetallic compounds based on Nd2(Fe1-x-yAlxCoy)14B have both high Curie temperatures and high coercive fields. The magnetocrystalline anisotropy of (Nd1-xSmx)2Fe14B and (Nd1-xPrx)2Fe14B has been studied by X-ray and magnetic measurements. Keywords: Rare earth-transition metal alloys and hydrides; Permanent magnets; Sublattices.
Author : Carlos E. Infante-Barros
Publisher :
ISBN 13 :
Total Pages : 698 pages
Book Rating : 4.:/5 (989 download)
Download or read book Neutron Diffraction Studies on Transition Metal Compounds written by Carlos E. Infante-Barros and published by . This book was released on 1975 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nam Nhat Ho
Publisher :
ISBN 13 :
Total Pages : 364 pages
Book Rating : 4.:/5 (56 download)
Download or read book Neutron Diffraction Studies of Transition Metal Hydrides written by Nam Nhat Ho and published by . This book was released on 2003 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mary Helen Drabnis
Publisher :
ISBN 13 :
Total Pages : 362 pages
Book Rating : 4.:/5 (44 download)
Download or read book Neutron Diffraction Studies of Transition Metal Hydrides and Chemistry of Metal Hydride Clusters written by Mary Helen Drabnis and published by . This book was released on 1997 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. Greaves
Publisher :
ISBN 13 :
Total Pages : 257 pages
Book Rating : 4.:/5 (16 download)
Download or read book Studies of Some Transition Metal Compounds by Electron Microscopy and Neutron Diffraction written by C. Greaves and published by . This book was released on 1973 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neutron Diffraction Studies on Transition Metal Hydride Complexes written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent neutron diffraction investigations on terminal, bridging and triply-bridging metal-hydrogen bonds are reviewed.
![Download Neutron Diffraction Studies of Transition Metal Hydride Complexes. [Complexes with C5H6, CO, NO, P(OCH3)3]. PDF Online Free](https://books.google.com/books/content/images/frontcover/bEFSAQAACAAJ?fife=w200-h370)
Download or read book Neutron Diffraction Studies of Transition Metal Hydride Complexes. [Complexes with C5H6, CO, NO, P(OCH3)3]. written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigations of H3Ta(C5H5)2 (III), HW2(CO)9(NO) (IV), and HW2(CO)(NO) (P(OCH3)3) (V) have been completed. Preliminary results are available for HFeCo3(CO)9(P(OCH3)3)3 (VII). This work, together with studies of HMo2(C5H5)2(CO)4(P(CH3)2) (VI) and ((C2H5)4N) (HCr2(CO)10)− carried out at Argonne has led to some general observations on the geometry and the nature of bonding in these compounds. For example, in the structures of IV and V, both of which have bent W--H--W linkages (less than W--H--W in the range 125-130°), there is conclusive evidence for the existence of a closed three-center W--H--W bond with significant metal-metal interaction. Such is the case, because extensions of the axial W--C and W--N bonds trans to the hydride intersect at a point near the center of the W--H--W triangle. The geometry of VI, which also contains a bent M--H--M bond, is consistent with that of IV and V. Bridging M--H bonds in these second- and third-row hydrides range in length from 1.85 to 1.89 A, compared to 1.75 A in the first-row polynuclear complex VII. For metals of corresponding rows, bridging M--H bonds are about 0.1 A longer than terminal bonds, which are classified as single covalent bonds.
Download or read book Neutron Diffraction Studies of Tetrahedral Cluster Transition Metal Hydride Complexes written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Structures of the tetrahedral cluster transition metal hydride complexes HFeCo/sub 3/(CO)/sub 9/(P(OCH/sub 3/)/sub 3/)/sub 3/ and H/sub 3/Ni/sub 4/(C/sub 5/H/sub 5/)/sub 4/ have been investigated by low-temperature neutron diffraction techniques. Both complexes have approximate C/sub 3//sub v/ symmetry. In HFeCo/sub 3/(CO)/sub 9/(P(OMe)/sub 3/)/sub 3/ the hydride ligand is found outside the FeCo/sub 3/ cluster, 0.978(3) A from the Co/sub 3/ face, and essentially on the molecular three-fold axis, triply bridging the cobalt atoms. Mean distances in the cluster are Co-Co 2.489(7), Co-Fe 2.559(2), Co-H 1.734(4) A. In H/sub 3/Ni/sub 4/(Cp)/sub 4/ the three hydride ligands are face-bridging, and their mean displacement from the faces of the cluster is 0.90(3) A. The H/sub 3/Ni/sub 4/ core may be envisaged as a distorted cube, with one vertex unoccupied. Mean distances are Ni-Ni 2.469(6), Ni-H 1.691(8), H ... H 2.316(6) A. The observed geometries of the two clusters considered here suggest a plausible model for chemisorption of hydrogen on (111) faces of cubic and (001) faces of hexagonal close-packed metals, in which hydrogen atoms are located approximately 1 A above the centers of triangles of metal atoms.
Author :
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ISBN 13 :
Total Pages : 632 pages
Book Rating : 4.E/5 ( download)
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.
Author : Raymond Osborn
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (599 download)
Download or read book Neutron Inelastic Scattering Studies of Magnetic Exitations in Rare Earth Compounds and Transition Metal Alloys written by Raymond Osborn and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Bureau of Standards
Publisher :
ISBN 13 :
Total Pages : 420 pages
Book Rating : 4.:/5 (321 download)
Download or read book Publications of the National Bureau of Standards, 1986 Catalog written by United States. National Bureau of Standards and published by . This book was released on 1987 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 782 pages
Book Rating : 4.3/5 (129 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Bureau of Standards
Publisher :
ISBN 13 :
Total Pages : 396 pages
Book Rating : 4.3/5 (243 download)
Download or read book Publications of the National Bureau of Standards ... Catalog written by United States. National Bureau of Standards and published by . This book was released on 1986 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : U.S. Atomic Energy Commission
Publisher :
ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.3/5 (91 download)
Download or read book Summaries of the USAEC Basic Research Program in Chemistry written by U.S. Atomic Energy Commission and published by . This book was released on 1964 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Igor L. Shabalin
Publisher : Springer
ISBN 13 : 9402413022
Total Pages : 755 pages
Book Rating : 4.4/5 (24 download)
Download or read book Ultra-High Temperature Materials II written by Igor L. Shabalin and published by Springer. This book was released on 2019-04-24 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: This exhaustive work in three volumes and over 1300 pages provides a thorough treatment of ultra-high temperature materials with melting points over 2500 °C. The first volume focuses on Carbon and Refractory Metals, whilst the second and third are dedicated solely to Refractory compounds and the third to Refractory Alloys and Composites respectively. Topics included are physical (crystallographic, thermodynamic, thermo physical, electrical, optical, physico-mechanical, nuclear) and chemical (solid-state diffusion, interaction with chemical elements and compounds, interaction with gases, vapours and aqueous solutions) properties of the individual physico-chemical phases of carbon (graphite/graphene), refractory metals (W, Re, Os, Ta, Mo, Nb, Ir) and compounds (oxides, nitrides, carbides, borides, silicides) with melting points in this range. It will be of interest to researchers, engineers, postgraduate, graduate and undergraduate students alike. The reader is provided with the full qualitative and quantitative assessment for the materials, which could be applied in various engineering devices and environmental conditions at ultra-high temperatures, on the basis of the latest updates in the field of physics, chemistry, materials science and engineering.
