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The current rapid development of cathode electronics has led fanned by their widespread use as cathode materials. A whole new section on the thermionic properties of aluminides has to extensive investigations of the emission properties of chemical el ements and their compounds. This expansion of research is aimed at been introduced. The list of pertinent literature has been aug the continual refinement of data already available and the steady widen mented by new contributions published in the years 1963-1965, ing of the circle of materials under investigation. These events have as well as some earlier publications that had escaped notice in the necessitated a whole series of additions and changes in this handbook, Russian edition. even though the original Russian edition was published only in 1964. It is the author's hope that the handbook will prove of great val Every effort has been made to include all available information ue to American readers interested in the emission properties of the on each element or compound. Particular attention has been given to elements and compounds, and that it will contribute to the further bringing the sections on borides and carbides of the transition and rare development of research in this promising and most timely field of metals up to date, since interest in these compounds has recently been electronics.
The current rapid development of cathode electronics has led fanned by their widespread use as cathode materials. A whole new section on the thermionic properties of aluminides has to extensive investigations of the emission properties of chemical el ements and their compounds. This expansion of research is aimed at been introduced. The list of pertinent literature has been aug the continual refinement of data already available and the steady widen mented by new contributions published in the years 1963-1965, ing of the circle of materials under investigation. These events have as well as some earlier publications that had escaped notice in the necessitated a whole series of additions and changes in this handbook, Russian edition. even though the original Russian edition was published only in 1964. It is the author's hope that the handbook will prove of great val Every effort has been made to include all available information ue to American readers interested in the emission properties of the on each element or compound. Particular attention has been given to elements and compounds, and that it will contribute to the further bringing the sections on borides and carbides of the transition and rare development of research in this promising and most timely field of metals up to date, since interest in these compounds has recently been electronics.
"Comprehensive source of materials, property data for practicing physicists, chemists, engineers and designers."--Pref. The introduction contains information on threshold limit values for chemical substances and physical agents in the work environment. Contents include physical, mechanical, chemical, thermal and thermodynamic, electrical and electronic, magnetic, acoustic and optical properties of materials; nuclear radiation and radiation effects; properties of elements, organic compounds, inorganic compounds, alloys, glasses and ceramics, composites, polymers and adhesives, semiconductors, superconductors, environment and miscellaneous materials. Appendix A ia a list of registered trademarks. Appendix B is a table of isotopes. Indexed. Published 1978.
The Alloy Data Center, part of the National Standard Reference Data System, has two primary functions. One is to stimulate cooperation and coordination among the existing data centers in the area of the physical properties of well characterized alloys. The final data generated by these centers for publication should be consistent with one another where correlation or possible overlap exists. The other purpose is the collection (from publications as well as private communications), evaluation, and publication of data in some areas where special competence exists in the Alloy Physics Section. Of interest to the center are metals, semimetals, intermetallic compounds, and alloys. Excluded are those materials which have ill-defined constitutions and heat treatments. An automated system was developed to meet the bibliographic needs of the center. This system will be described as well as the specific properties of interest. The system presently contains a complete annotated file dealing with NMR Knight shift measurements. The soft X-ray spectroscopy compilation is being kept up-to-date with the same system. (Author).
At the time of its establishment in 1966, by the International Council of Scientific Unions (ICSU), the Committee on Data for Science and Technol ogy (CODATA) was given the basic mission of promoting and encouraging, on a worldwide basis, the production and distribution of compendia and of collections of critically selected numerical data on substances other forms of interest and importance to science and technology. To accomplish this aim, the following tasks were assigned to CODATA: (1) To ascertain, on a worldwide basis, what work on compilation of numerical data is being carried on in each country and under each union, and from this information, to prepare and distribute a Directory or Com pendium of the Data-Compiling Projects and Related Publications of the World; (2) To achieve coordination of existing programs and to recommend new programs; (3) To encourage, from all appropriate sources, financial support for work on compilation; (4) To encourage the use of internationally approved symbols, units, constants, terminology, and nomenclature; (5) To encourage and coordinate research on new methods for preparing and disseminating data for science and technology. In its first two years of operation, 1966 to 1968, in Washington, D. c. , U. S. A. , CODATA fortunately had as its Director Dr. GUY WADDINGTON, who was also Director of the Office of Critical Tables of the National Research Council (NRC), U. S. A. Dr.