Propriétés thermodynamiques physiques et structurales des dérivés semi-métalliques PDF Download

Author: André Michel (Professeur de chimie minérale)
Publisher:
ISBN:
Category : Transition metal compounds
Languages : fr
Pages : 544

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Author: T. F. Connolly
Publisher: Springer Science & Business Media
ISBN: 1468413961
Category : Science
Languages : en
Pages : 183

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This referenced compilation of magnetic transition temperatures represents (with the Addendum) papers actually received by the RMIC through May 1972 and consists of two lists (alphabetical by compounds), one for Curie and one for Neel temperatures. Where different values appeared in the literature for a single compound, all are listed with sepa rate references given for each. There is no attempt at critical evaluation, which, except for a few welt-studied and well characterized materials, would hardly be worth the effort. All that one can say for most of the compounds is that for a given material with a certain (or all too often uncertain) history of preparati'on and treatment, stoichiometry, homoge neity, and chemical or structural purity a magnetic transition was indicated at the temperature(s) listed. Only when the reasons for different values are explicitly stated in the literature do they appear as brief comments in the body of the lists. In order to include the most recent data, and to eliminate the delay involved in recomposition of the lists, an addendum is provided. While this requires the perusal of two lists rather than one, it does ensure that the compilation represents the entire RMIC collection at the moment of going to press. The 2478 references are restricted to those papers specifying a Curie or Neel temperature and do not reflect the complete magnetics literature even for the materials listed.

Author: H.P.J. Wijn
Publisher: Springer Science & Business Media
ISBN: 3642582184
Category : Technology & Engineering
Languages : en
Pages : 202

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During the last decades the knowledge of the magnetic properties of the d transition elements and of their metallic alloys and compounds has increased widely. The improvement of preparation techniques for well-defined substances, the development of sophisticated measuring methods and above all the drive to obtain more insight in the origin of magnetic interactions in solids have resulted in the publication of many specific magnetic properties for an abundance of all kinds of metallic materials. The data assembled in this booklet are selected from the comprehensive compilation of magnetic and related properties of metals in the Landolt-Bornstein New Series Group III sub volumes 19a, band c. It has been attempted to include preferentially those properties which are of a basic character and which therefore are most often needed by scientists active in the field of solid state magnetism. In the field of magnetism, there is a gradual transition from the use of cgs/emu units to SI units. It was, however, not intended to represent all data in the units of one system, regardless of how nice this would have been from a systematic point of view. Instead, mostly preference was given to the system of units that was originally used by the authors whose work is quoted. Thus cgs/ emu units occur most frequently. Of colirse the user of the tables and figures is helped in several ways to convert the data to the units which he is most familiar with, see, e. g.

Author: T. F. Connolly
Publisher: Springer Science & Business Media
ISBN: 1468462040
Category : Science
Languages : en
Pages : 219

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responsibility.) To Betty Edwards and Emily Copenhaver my thanks for what must have seemed endless typing, retyping and correcting of these bibliographies over a span of years. Availability of Documents U. S. Government contractor reports, usually identified by an alpha-numeric report number, can be purchased from National Technical Information Service U. S. Department of Commerce Springfield, Virginia 22151 and, often, on request from the issuing installation. USAEC reports are also available from International Atomic Energy Agency Kaerntnerring A 1010 Vienna, Austria National Lending Library Boston Spa England Monographs and reports of the National Bureau of Standards are for sale by Superintendent of Documents U. S. Government Printing Office Washington, D. C. 20402 Theses, listed as Dissertation Abstracts + number, are available in North or South America from University Microfilms Dissertation Copies P. O. Box 1764 Ann Arbor, Michigan 48106 and elsewhere from University Microfilms, Ltd. St. John's Road Tylers Green Penn, Buckinghamshire England Other Information Centers and New Journals New journals Information centers Field and and other sources serials Ultra purification 4, 8, 11, 13, 15, 16,19, 20, 9,11,15, 24, 31, 32 and 21, 28, 30, 32, 33, 42, 58, 59 crystal growth ix Preface Field Information centers New journals and and other -sources serials Characterization Miscellaneous 3,4, 8, 11, 13, 16, 19, 20, 1,3,4,8,11,15,17, 21, 26, 28, 30, 31, 32, 33, 35, 24, 25, 28, 29, 30, 31, 37, 38, 39, 40, 42, 46, 53, 56, 32 58, 60, 61, 62

Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 812

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Author:
Publisher: CRC Press
ISBN: 9780891168492
Category : Technology & Engineering
Languages : en
Pages : 976

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This book contains the most- used methods of powder preparation and manufacture of articles, data on the explosibility, flammability and toxicity of refractory-compound powders. Topics include the properties of borides, carbides, nitrides, silicides, sulphides, selenides, and tellurides.

Author: R. Freer
Publisher: Springer Science & Business Media
ISBN: 9400921012
Category : Technology & Engineering
Languages : en
Pages : 716

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Carbides, nitrides and borides are families of related refractory materials. Traditionally they have been employed in applications associated with engineering ceramics where either high temperature strength or stability is of primary importance. In recent years there has been a growing awareness of the interesting electrical, thermal and optical properties exhibited by these materials, and the fact that many can be prepared as monolithic ceramics, single crystals and thin films. In practical terms carbides, nitrides and borides offer the prospect of a new generation of semiconductor materials, for example, which can function at very high temperatures in severe environmental conditions. However, as yet, we have only a limited understanding of the detailed physics and chemistry of the materials and how the preparation techniques influence the properties. Under the auspices of the NATO Science Committee an Advanced Research Workshop (ARW) was held on the Physics and Chemistry of Carbides, Nitrides and Borides (University of Manchester, 18-22 September, 1989) in order to assess progress to date and identify the most promising themes and materials for future research. An international group of 38 scientists considered developments in 5 main areas: The preparation of powders, monolithic ceramics, single crystals and thin films; Phase transformations, microstructure, defect structure and mass transport; Materials stability; Theoretical studies; Electrical, thermal and optical properties of bulk materials and thin films.

Author: Juan Bartolomé
Publisher: Trans Tech Publications Ltd
ISBN: 3035700613
Category : Technology & Engineering
Languages : en
Pages : 246

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Selected, peer reviewed papers from the XXth International Conference on Solid Compounds of Transition Elements (SCTE2016), April 11-15, 2016, Zaragoza, Spain

Author: N. Hannay
Publisher: Springer Science & Business Media
ISBN: 1468426648
Category : Science
Languages : en
Pages : 788

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The last quarter-century has been marked by the extremely rapid growth of the solid-state sciences. They include what is now the largest subfield of physics, and the materials engineering sciences have likewise flourished. And, playing an active role throughout this vast area of science and engineer ing have been very large numbers of chemists. Yet, even though the role of chemistry in the solid-state sciences has been a vital one and the solid-state sciences have, in turn, made enormous contributions to chemical thought, solid-state chemistry has not been recognized by the general body of chemists as a major subfield of chemistry. Solid-state chemistry is not even well defined as to content. Some, for example, would have it include only the quantum chemistry of solids and would reject thermodynamics and phase equilibria; this is nonsense. Solid-state chemistry has many facets, and one of the purposes of this Treatise is to help define the field. Perhaps the most general characteristic of solid-state chemistry, and one which helps differentiate it from solid-state physics, is its focus on the chemical composition and atomic configuration of real solids and on the relationship of composition and structure to the chemical and physical properties of the solid. Real solids are usually extremely complex and exhibit almost infinite variety in their compositional and structural features.

Author: Grigoriĭ Valentinovich Samsonov
Publisher: Springer
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 576

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Scientific and technical progress in our country depends largely on supplying im portant sections of the national economy with modern materials. This may be done by improving traditional materials, as well as by developing new ones that may be used under severe temperature, stress, and velocity conditions and that have com binations of certain physical and chemical properties. Refractory, superhard, corrosion-resistant, semiconductor, dielectric, and other materials are thus being created that will permit the development of new, highly effective tool materials, the implementation of technological processes in plasmas, and the solution of some materials-related aerospace and nuclear power problems. Refractory compounds play a vital role in the development of new materials and in the improvement of traditional materials. But information available on the properties of refractory compounds needed by scientists and engineers engaged in producing new materials for industry and technology has not yet been properly systematized. A first attempt in 1963 at such systematization (the first edition of this book) played some part in expanding the development and use of refractory compounds, but the information has now become seriously outdated, especially since in the last decade the study of refractory compounds in the USSR and abroad has grown very rapidly. In 1964 the handbook was, with certain additions, translated and published in the USA, but that publication was not readily available to the Soviet reader.