|Series||Information circular (United States. Bureau of Mines) -- 8082|
Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link) http behaviors of the rare-earth elements, and the formation of intermediate compounds in high-temperature recycling processes. Recommendations for further scientiﬁc research to enable the development of recovery of the rare-earth and magnet recycling are also presented. Keywords Spent magnet recycling High temperature Rare earth Pyrometallurgy The only rare-earth transition-metal binary with this structure is L which is ferromagnetic with a cobalt moment of μ Β and Curie temperature T C = K (Buschow and Velge, ). Among the rare-earth–3d compounds it has the highest 3d-metal content and is of potential interest for :// Abstract. High temperature is an important means for inorganic syntheses of novel compounds, materials, and high-temperature phases. In this chapter, we highlight the various important aspects in high-temperature inorganic synthesis, along with their recent progress, such as preparation of rare earth compounds and materials at high temperature, sol–gel process, and precursors in high
High-purity ( mass%) rare earth compounds (e.g., oxides) are produced from these ores by physical concentration, leaching, solution purification, solvent extraction separation, and individual rare earth compound precipitation. About 40% of all rare earth production is used in metallic form—for making magnets, battery electrodes, and :// A refractory material or refractory is a material that is resistant to decomposition by heat, pressure, or chemical attack, and retains strength and form at high temperatures. Refractories are inorganic, nonmetallic, porous, and heterogeneous. They are typically composed of oxides of the following materials: silicon, aluminum, magnesium, calcium, and :// High-temperature superconductors (abbreviated high-T c or HTS) are operatively defined as materials that behave as superconductors at temperatures above nearly °C ( °F).. This is in fact the lowest temperature reachable by liquid nitrogen, one of the simplest coolants in cryogenics. All superconducting materials known at ordinary pressures currently work far below ambient Handbook on the Physics and Chemistry of Rare Earths: Including Actinides, Vol the latest release in this continuous series that covers all aspects of rare earth science, including chemistry, life sciences, materials science and physics, includes interesting chapters on Forensic applications of rare earth materials, and Rare earths, the seventeen-position :// /handbook-on-the-physics-and-chemistry-of-rare-earths.
Rare Earth Elements A briefing note by the Geological Society of London Introduction The rare earth elements have long been recognised as useful because of their unusual chemical and physical properties. Their natural occurrence is strongly dependent on geological circumstances, and only in a few locations are they found in sufficient quantity and~/media/shared/documents/policy/Rare Earth Elements briefing. RARE EARTH MATERIALS. Rare earth refractory oxide ceramics exhibiting very high thermal stability, wear resistance and strength. Widely used in applications above F (C), nuclear, high performance metal melting, oxygen sensors and semiconductor :// High temperature is an important means for inorganic syntheses of novel compounds, materials, and high-temperature phases. In this chapter, we highlight the various important aspects in high-temperature inorganic synthesis, along with their recent progress, such as preparation of rare earth compounds and materials at high temperature, sol–gel process, and precursors in high-temperature Refractory Transition Metal Compounds: High Temperature Cermets focuses on the properties, reactions, transformations, and characteristics of refractory compounds. The publication also examines the electrical properties of hexaborides of several rare earth metals and the thermionic emission properties of scandium gadolinium borides