Author: Frank William HeemstraPublisher:
ISBN:
Category : Borides
Languages : en
Pages : 174
Book Description
Thermionic Work Functions of Some Rare Earth Borides ...
Author: Frank William HeemstraPublisher:
ISBN:
Category : Borides
Languages : en
Pages : 174
Book Description
Rare-Earth Borides
Author: Dmytro S. InosovPublisher: CRC Press
ISBN: 1000345726
Category : Technology & Engineering
Languages : en
Pages : 912
Book Description
Rare-earth borides have attracted continuous interest for more than half a century both from the point of view of fundamental condensed matter physics and for practical applications in various fields of engineering. They demonstrate a wealth of unusual electronic and magnetic properties that have been closely investigated in recent decades using advanced spectroscopies and state-of-the-art physical characterization methods. Authored by leading experts in the field, this book features a comprehensive collection of reviews offering a cutting-edge summary of the research on rare-earth borides from various viewpoints. It includes chapters on the growth and characterization of single-crystal and thin-film samples, detailed description of their lattice structure and dynamics, electronic and magnetic properties in the bulk and at the surface, low-temperature ordering phenomena, and theoretical and experimental description of the unusual spectroscopic properties from the perspective of modern x-ray and neutron scattering, Raman spectroscopy, and electron spin resonance. The book will appeal to anyone interested in the physics and chemistry of solids and low-temperature physics, especially to researchers and postgraduate students who study magnetic and electronic properties of rare-earth compounds.
NBS Technical Note
Author: Publisher:
ISBN:
Category : Physical instruments
Languages : en
Pages : 202
Book Description
Rare-Earth Metal Hexaborides: Synthesis, Properties, and Applications
Author: Mikail AslanPublisher: Bentham Science Publishers
ISBN: 9815124587
Category : Science
Languages : en
Pages : 136
Book Description
Rareearth hexaborides are a group of materials composed of octahedral boron units. They are useful for making advanced ceramics that have a wide range of industrial applications due to their low electronic work functions, hardness, refractory properties, low electrical resistances and specific thermal expansion coefficients. RareEarth Metal Hexaborides: Synthesis, Properties, and Applications provides a quick reference on rareearth metal hexaborides and their engineering applications. It provides a primer on rare earth elements followed by details of rareearth hexaboride structures, synthetic methods, and information about their alloys and ceramic composites. References to scholarly research are also provided for assisting advanced readers. This reference is a handy source of information for chemical engineering and materials science scholars, and anyone interested in the applied chemistry of rareearth metals and borides.
Progress Report in Physics for the Period ...
Author: Progress Report in Physics for the Period January 1, 1951 to June 30, 1951
Author: Sc, Y, La-Lu. Rare Earth Elements
Author: Hiltrud HeinPublisher: Springer Science & Business Media
ISBN: 3662075032
Category : Science
Languages : en
Pages : 289
Book Description
The volume "Rare Earth Elements" C 11 deals with the compounds and systems of the rare earth elements with boron, Le., borides, borates, and associated alkali double compounds. As in all earlier volumes of "Rare Earth Elements" Se ries C ("Seltenerdelemente" Reihe Cl, comparative data are presented in sections preceding treatment of the individual compounds and systems. Topics of the present volume C 11 aare the comparative data on the borides and the indi vidual sections on the systems and borides containing Sc, Y, and La. The individual sections for the systems and borides with Ce to Lu can be found in the following volume C 11 b together with the borates, their alkali double compounds, and other compounds containing Ce to Lu, boron and elements related by the Gmelin system. The most extensively studied borides treated in the comparative sections are of the type MB. These rare earth hexaborides are refractory compounds and so me of them, especially e LaBe, are good thermionic emissive materials or exhibit other interesting physical properties.
Advances in Imaging and Electron Physics
Author: Publisher: Academic Press
ISBN: 0080577768
Category : Science
Languages : en
Pages : 193
Book Description
Advances in Imaging & Electron Physics merges two long-running serials--Advances in Electronics & Electron Physics and Advances in Optical & Electron Microscopy. The series features extended articles on the physics of electron devices (especially semiconductor devices), particle optics at high and low energies, microlithography, image science and digital image processing, electromagnetic wave propagation, electron microscopy, and the computing methods used in all these domains.
Refractory Transition Metal Compounds
Author: G. V. SamsonovPublisher: Elsevier
ISBN: 1483270831
Category : Science
Languages : en
Pages : 229
Book Description
Refractory Transition Metal Compounds: High Temperature Cermets focuses on the properties, reactions, transformations, and characteristics of refractory compounds. The selection first offers information on continuous-discrete character of variation of the type of bonding in refractory compounds of transition metals, principles of classification of refractory compounds, and calculation of the energy of crystal lattices of inorganic compounds. The text also takes a look at the X-ray spectral investigation of chemical bonding forces in hydrides of refractory metals, using titanium and vanadium compounds as examples and comparison of X-ray K absorption spectra in compounds of chromium with elements of subgroup IV. The manuscript elaborates on the X-ray spectra and interatomic bond in solid metallic compounds and behavior of components of metal solid solutions in a field of electrical forces. The publication also examines the electrical properties of hexaborides of several rare earth metals and the thermionic emission properties of scandium gadolinium borides. The book is a dependable reference for readers wanting to study refractory compounds.
Boron and Refractory Borides
Author: G.V. SamsonovPublisher: Springer Science & Business Media
ISBN: 3642666205
Category : Science
Languages : en
Pages : 666
Book Description
V. I. MATKOVICH During the meeting of the International Symposium on Boron held in October, 1972 in Tbilisi, U.S.S.R., the idea was proposed to assemble a review of boron and refractory borides by the specialists present. The advantages of such a work were immediately apparent. Such diverse applications of borides as in protective armor, nuclear reactors, coat ings, reinforcement, etc. can hardly all be presented in sufficient detail by a single author. On the other hand it was also recognized that with so much specialization, some areas of interest may not be covered. Within the last decade or two a number of areas have been developed in which the use of refractory borides is growing and improvements are being actively explored. Thus, a number of borides have considerable potential as reinforcing material for plastics or light metals, though only boron fibers have been firmly established up to the present. Ap plication of flakes and films for two-dimensional reinforcement appears attractive, although the high cost of materials and development repre sents a considerable barrier. A number of borides have been used to manufacture lightweight protec tive armor. In this area relatively fast changes seem to be taking place as improvements in performance and weight are made. Boron carbide has found considerable use in this application and new developments exploit the light weight of beryllium borides.