Magnetic studies of novel mixed rare earth-iron rich R₂T₁₇ intermetallics
Magnetic studies of novel mixed rare earth iron rich R₂T₁₇ intermetallics
Keywords and Phrases
2:17 systems; 2:17 rhombohedral; 2:17 hexagonal; 2:17 disordered rhombohedral
"The modern families of high performance permanent magnets are based on combinations of transition metals (Fe and Co) and rare earths. In general, the transition metal provides high Curie temperature and saturation moment, while the rare earth is responsible for a large uniaxial anisotropy resulting in good coercivity in the final magnet. R₂TM₁₇ (R = rare earth, TM = transition metal) crystallize either in the hexagonal Th₂Ni₁₇-type structure with heavy rare earth elements or in the rhombohedral Th₂Zn₁₇-type structure with light rare earth elements. The hexagonal structure supports appreciable deviation from the ideal 2:17 stoichiometry and in practice is realized only in disordered (DH) phase. In this thesis we present our results on the mixed rare earth 2:17 systems that reveal the existence of a disorder in the rhombohedral phase (DR)."--Abstract, page iv.
Ph. D. in Physics
University of Missouri--Rolla
xii, 157 leaves
© 2003 Kishore Kamaraju, All rights reserved.
Dissertation - Citation
Library of Congress Subject Headings
Rare earth metals -- Magnetic properties
Transition metals -- Magnetic properties
Print OCLC #
Link to Catalog Record
Full-text not available: Request this publication directly from Missouri S&T Library or contact your local library.http://laurel.lso.missouri.edu/record=b5118606~S5
Kamaraju, Kishore, "Magnetic studies of novel mixed rare earth-iron rich R₂T₁₇ intermetallics" (2003). Doctoral Dissertations. 1512.