Recent studies indicate that China accounts for about 96 percent of
the world's supply of rare earth materials (REMs). With REMs
becoming increasingly important for a growing number of high-tech
applications, appropriate action must be taken to mitigate the
effects of a shortage of critical REMs in defense systems and
components. Bringing together information previously available only
from disparate journal articles and databases, Rare Earth
Materials: Properties and Applications describes the unique
characteristics and applications of 17 REMs. It defines their
chemical, electrical, thermal, and optical characteristics.
Maintaining a focus on physical and chemical properties, it
addresses the history and critical issues pertaining to mining and
processing of REMs. In this book, Dr. A.R. Jha continues his
distinguished track record of distilling complex theoretical
physical concepts into an understandable technical framework that
can be extended to practical applications across commercial and
industrial frameworks. He summarizes the chemical, optical,
electrical, thermal, magnetic, and spectroscopic properties of REMs
best suited for next-generation commercial and military systems or
equipment. Coverage includes extraction, recycling, refinement,
visual inspection, identification of spectroscopic parameters,
quality control, element separation based on specific application,
pricing control, and environmental / geo-political considerations.
Potential applications are identified with an emphasis on
scientific instruments, nuclear resonance imaging equipment, MRI
systems, magnetic couplers for uranium enrichment equipment,
battery-electrodes, electric motors, electric generators,
underwater sensors, and commercial and military sensors. The book
describes unique applications of rare earth magnets in all-electric
and hybrid electric cars and microwave components. It also
considers the use of rare earth magnets in commercial and military
systems where weight and size are the critical design requirements.
Suitable for both students and design engineers involved in the
development of high-technology components or systems, the book
concludes by summarizing future applications in electro-optic
systems and components, including infrared lasers, diode-pumped
solid-state lasers operating at room temperatures, and other
sophisticated military and commercial test equipment
General
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