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Metallurgical Processes in Multi-Component Rare Earth-Transition Metal Permanent Magnet Alloys

1990
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Release : 1990
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Book Synopsis Metallurgical Processes in Multi-Component Rare Earth-Transition Metal Permanent Magnet Alloys by : Alden E. Ray

Download or read book Metallurgical Processes in Multi-Component Rare Earth-Transition Metal Permanent Magnet Alloys written by Alden E. Ray. This book was released on 1990. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of this research has been to improve and extend the technology of 2:17 type permanent magnets. The research has proceeded by employing a model for the complex metallurgical behavior of these alloys. During the three year period of this research, we have succeeded in establishing a record value (BH)max=34 MGOe for energy product in uncompensated Sm(CouFevCuxZry)z magnets. This was achieved by increasing the Fe content to v=0.31-0.33 (28-30 at.%) while developing heat treatments to maintain the coercivity at high levels. Keywords: Permanent magnets; Rare earth-transition metal permanent magnets; R2:TM17 type rare earth magnets; Sm(Gd), Co, Fe, Cu, Zr alloys, Model for metallurgical behavior. (jes).

Rare Earth Permanent-Magnet Alloys’ High Temperature Phase Transformation

2014-12-01 Science
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Release : 2014-12-01
Genre : Science
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Book Rating : 881/5 ( reviews)

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Book Synopsis Rare Earth Permanent-Magnet Alloys’ High Temperature Phase Transformation by : Shuming Pan

Download or read book Rare Earth Permanent-Magnet Alloys’ High Temperature Phase Transformation written by Shuming Pan. This book was released on 2014-12-01. Available in PDF, EPUB and Kindle. Book excerpt: The process of high temperature phase transition of rare earth permanent-magnet alloys is revealed by photographs taken by high voltage TEM. The relationship between the formation of nanocrystal and magnetic properties is discussed in detail, which effects alloys composition and preparation process. The experiment results verified some presumptions, and were valuable for subsequent scientific research and creating new permanent-magnet alloys. The publication is intended for researchers, engineers and managers in the field of material science, metallurgy, and physics. Prof. Shuming Pan is senior engineer of Beijing General Research Institute of Non-ferrous Metal.

Research and Development of Rare Earth-Transition Metal Alloys as Permanent-Magnet Materials

1971
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Release : 1971
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Book Synopsis Research and Development of Rare Earth-Transition Metal Alloys as Permanent-Magnet Materials by : Alden E. Ray

Download or read book Research and Development of Rare Earth-Transition Metal Alloys as Permanent-Magnet Materials written by Alden E. Ray. This book was released on 1971. Available in PDF, EPUB and Kindle. Book excerpt: Intermetallic phases with the formulas R2Co17, R2Fe17, and R2(Co1-xFex)17 are of potential interest as permanent magnets. Procedures for the preparation of these intermetallic phases are described. Descriptions are given of the design and operation of differential thermal analysis equipment and of a high temperature-high vacuum furnace for the metallurgical and magnetic evaluation of rare earth-transition metal intermetallic phases. (Author).

Research in Progress

1988 Military research
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Release : 1988
Genre : Military research
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Download or read book Research in Progress written by . This book was released on 1988. Available in PDF, EPUB and Kindle. Book excerpt:

Research in Progress

1984 Military research
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Release : 1984
Genre : Military research
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Book Synopsis Research in Progress by : United States. Army Research Office

Download or read book Research in Progress written by United States. Army Research Office. This book was released on 1984. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 1977- consist of two parts: Chemistry, biological sciences, engineering sciences, metallurgy and materials science (issued in the spring); and Physics, electronics, mathematics, geosciences (issued in the fall).

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