Microstructural study of high coercivity Sm(Co, Cu)5 alloy

E. Estévez-Rams; J. Fidler; A. Penton; A. Valor-Reed; J. C. Téllez-Blanco; R. Sato Turtelli; R. Grössinger

doi:10.1016/S0304-8853(99)00228-0

Microstructural study of high coercivity Sm(Co, Cu)₅ alloy

E. Estévez-Rams, J. Fidler, A. Penton, A. Valor-Reed, J. C. Téllez-Blanco, R. Sato Turtelli, R. Grössinger

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Magnetic measurements, X-ray and microstructural studies are carried out in as-cast and in annealed Sm(Co_0.5, Cu_0.5)₅ showing high coercive field. In the as-cast state three regions with different (Sm, Co, Cu)-content were found. The annealed samples showed a more homogenised composition but still with a two region microstructure. One of the regions has a higher (Sm, Cu)-content. X-ray diffraction patterns show only a CaCu₅-type structure while microprobe analysis shows a higher Sm content than the Sm(Co, Cu)₅ composition for all regions in the as-cast and the annealed sample. Optical micrographs and Kerr microscopy show for the annealed sample grains with heavy faulting. The evolution of the microstructure upon annealing is discussed in relation with the Sm excess and Cu incorporation into the CaCu₅-type structure. The relation between the observed microstructure and the magnetic behaviour is also discussed.

Original language	English
Pages (from-to)	595-600
Number of pages	6
Journal	Journal of Magnetism and Magnetic Materials
Volume	195
Issue number	3
DOIs	https://doi.org/10.1016/S0304-8853(99)00228-0
State	Published - Jun 1999
Externally published	Yes

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title = "Microstructural study of high coercivity Sm(Co, Cu)5 alloy",

abstract = "Magnetic measurements, X-ray and microstructural studies are carried out in as-cast and in annealed Sm(Co0.5, Cu0.5)5 showing high coercive field. In the as-cast state three regions with different (Sm, Co, Cu)-content were found. The annealed samples showed a more homogenised composition but still with a two region microstructure. One of the regions has a higher (Sm, Cu)-content. X-ray diffraction patterns show only a CaCu5-type structure while microprobe analysis shows a higher Sm content than the Sm(Co, Cu)5 composition for all regions in the as-cast and the annealed sample. Optical micrographs and Kerr microscopy show for the annealed sample grains with heavy faulting. The evolution of the microstructure upon annealing is discussed in relation with the Sm excess and Cu incorporation into the CaCu5-type structure. The relation between the observed microstructure and the magnetic behaviour is also discussed.",

author = "E. Est{\'e}vez-Rams and J. Fidler and A. Penton and A. Valor-Reed and T{\'e}llez-Blanco, {J. C.} and {Sato Turtelli}, R. and R. Gr{\"o}ssinger",

year = "1999",

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doi = "10.1016/S0304-8853(99)00228-0",

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volume = "195",

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TY - JOUR

T1 - Microstructural study of high coercivity Sm(Co, Cu)5 alloy

AU - Estévez-Rams, E.

AU - Fidler, J.

AU - Penton, A.

AU - Valor-Reed, A.

AU - Téllez-Blanco, J. C.

AU - Sato Turtelli, R.

AU - Grössinger, R.

PY - 1999/6

Y1 - 1999/6

N2 - Magnetic measurements, X-ray and microstructural studies are carried out in as-cast and in annealed Sm(Co0.5, Cu0.5)5 showing high coercive field. In the as-cast state three regions with different (Sm, Co, Cu)-content were found. The annealed samples showed a more homogenised composition but still with a two region microstructure. One of the regions has a higher (Sm, Cu)-content. X-ray diffraction patterns show only a CaCu5-type structure while microprobe analysis shows a higher Sm content than the Sm(Co, Cu)5 composition for all regions in the as-cast and the annealed sample. Optical micrographs and Kerr microscopy show for the annealed sample grains with heavy faulting. The evolution of the microstructure upon annealing is discussed in relation with the Sm excess and Cu incorporation into the CaCu5-type structure. The relation between the observed microstructure and the magnetic behaviour is also discussed.

AB - Magnetic measurements, X-ray and microstructural studies are carried out in as-cast and in annealed Sm(Co0.5, Cu0.5)5 showing high coercive field. In the as-cast state three regions with different (Sm, Co, Cu)-content were found. The annealed samples showed a more homogenised composition but still with a two region microstructure. One of the regions has a higher (Sm, Cu)-content. X-ray diffraction patterns show only a CaCu5-type structure while microprobe analysis shows a higher Sm content than the Sm(Co, Cu)5 composition for all regions in the as-cast and the annealed sample. Optical micrographs and Kerr microscopy show for the annealed sample grains with heavy faulting. The evolution of the microstructure upon annealing is discussed in relation with the Sm excess and Cu incorporation into the CaCu5-type structure. The relation between the observed microstructure and the magnetic behaviour is also discussed.

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U2 - 10.1016/S0304-8853(99)00228-0

DO - 10.1016/S0304-8853(99)00228-0

M3 - Artículo

AN - SCOPUS:0345201708

SN - 0304-8853

VL - 195

SP - 595

EP - 600

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 3

ER -

Microstructural study of high coercivity Sm(Co, Cu)₅ alloy

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