Niobium Alloys and Compounds


Book Description

A novel of the Southwest in the 1870's and 1880's. The chief scene of action is at a U.S. Army outpost in Arizona during the Apache Indian Wars.




Niobium Alloys and Compounds


Book Description

This report was prepared by Hughes Aircraft Company, Culver City, California under Contract No. F33615-70-C-1348. The work was administered under the direction of the Air Force Materials Laboratory, Air Force Systems Cornrnand, Wright-Patterson Air Force Base, Ohio, with Mr. B. Emrich, Project Engineer. The Electronic Properties Information Center (EPIC) is a designated inforrnation Analysis Center of the Departrnent of Defense, authorized to provide inforrnation to the entire DoD cornrnunity. The purpose of the Center is to provide a highly competent source of inforrnation and data on the electronic, optical and magnetic properties of materials of value to the Department of Defense. Its major function is to evaluate, compile and publish the experimental data from the world's unclassified literature concerned with the properties of materials. All materials relevant to the field of electronics are within the scope of EPIC: insulators, semiconductors, metals, superconductors, ferrites, ferroelectrics, ferromagnetics, electro luminescents, therrnionic emitters and optical materials. The Center's scope includes inforrnation on over 100 basic properties of materials; information generally regarded as being in the area of devices and/or circuitry is excluded. Grateful acknowledgement is made for the review and comments of Dr. G. D. Cody of RCA Laboratories and Dr. B. W. Roberts of General Electric Co. V CONTENTS Introduction •. . ••••. . . ••••. . . . . . •• 1 Superconductivity Applications •••• 3 Niobium-Hydrogen •. . ••. •. ••. ••. . •• 15 Niobium-Antimony. • . . . • . • • • • . • • . • • .




Niobium Alloys and Compounds


Book Description

This report was prepared by Hughes Aircraft Company, Culver City, California under Contract No. F33615-70-C-1348. The work was administered under the direction of the Air Force Materials Laboratory, Air Force Systems Cornrnand, Wright-Patterson Air Force Base, Ohio, with Mr. B. Emrich, Project Engineer. The Electronic Properties Information Center (EPIC) is a designated inforrnation Analysis Center of the Departrnent of Defense, authorized to provide inforrnation to the entire DoD cornrnunity. The purpose of the Center is to provide a highly competent source of inforrnation and data on the electronic, optical and magnetic properties of materials of value to the Department of Defense. Its major function is to evaluate, compile and publish the experimental data from the world's unclassified literature concerned with the properties of materials. All materials relevant to the field of electronics are within the scope of EPIC: insulators, semiconductors, metals, superconductors, ferrites, ferroelectrics, ferromagnetics, electro luminescents, therrnionic emitters and optical materials. The Center's scope includes inforrnation on over 100 basic properties of materials; information generally regarded as being in the area of devices and/or circuitry is excluded. Grateful acknowledgement is made for the review and comments of Dr. G. D. Cody of RCA Laboratories and Dr. B. W. Roberts of General Electric Co. V CONTENTS Introduction •. . ••••. . . ••••. . . . . . •• 1 Superconductivity Applications •••• 3 Niobium-Hydrogen •. . ••. •. ••. ••. . •• 15 Niobium-Antimony. • . . . • . • • • • . • • . • • .










Preparation of Ingots of Uranium-niobium Alloys


Book Description

A study was made of the preparation of a uranium - 10 w/O niobium alloy by the bomb reduction of a suitable form of niobium and uranium tetrafluoride with calcium. A compound with a probable formula of Na2NbOF5 proved to be most satisfactory as the source of niobium. High yields and good metal-slag separations were obtained. Chemical analysis and density determinations showed the composition to be 10 ℗± 0.5 w/o niobium. Fifteen pounds of alloy were melted in BeO and cast into a graphite mold.




Chemistry of Tantalum and Niobium Fluoride Compounds


Book Description

Electronic, optical, mechanical and medical appliances are just a few examples of modern applications that use tantalum and niobium. In Chemistry of Tantalum and Niobium Fluoride Compounds, the author draws on thirty years' experience to produce the first ever monograph to systemize and summarize the data available on tantalum and niobium fluoride compounds. This comprehensive reference source offers a rich variety of study methodology and is invaluable to researchers examining the chemistry of fluorides, as well as teachers and students in chemistry and metallurgy. * Collects the latest research on the chemistry of complex fluorides and oxyfluorides of Tantalum and Niobium. * Covers both theory and application of Tantalum and Niobium Fluoride Chemistry * Is suitable for tantalum and niobium producers, researchers studying the chemistry of fluorides, as well as teachers and students in chemistry and metallurgy




The Chemistry of Vanadium, Niobium and Tantalum


Book Description

The Chemistry of Vanadium, Niobium and Tantalum gives a comprehensive discussion on the discovery, origin, and metallurgical aspects of vanadium, niobium, and tantalum. A section is also focused on the nuclear properties, as well as the physical and chemical properties of each compound. The history and distribution of vanadium, niobium, and tantalum are explored, along with the purification and extraction procedures of the said elements. The book also explores the derivative compounds such as the alloys, hydride, halides, and oxides. Another section of the book is focused on the physical and chemical modifications of the elements that generate such by-products as the cyanides, hydroxides, and sulfides. Different complexes of the elements such as halogeno- and oxyhalogeno-complexes are discussed in detail. The organometallic chemistry of niobium, tantalum, and vanadium are also identified. The book will be a useful tool for chemical engineers, chemical scientists, and students in the field of chemistry.




Niobium Alloys and Compounds


Book Description

These data sheets on niobium alloys and compounds present a compilation of electronic properties for superconducting properties including transition temperature, critical field, critical current, electrical resistivity, and magnetic hysteresis. Electrical properties include conductivity, dielectric constant, Hall coefficient, mobility, and thermoelectric effects. Emission data have been broken down into the varied electron and photon emissions. Work functions, absorption, magnetic susceptibility, specific heat, Debye temperature and thermal conductivity data are also given. Each property is compiled over the widest possible range of parameters including bulk and film form, from references obtained in a thorough literature search. (Author).