Recent progress in the development of nanophase rare earth magnets

• Autorzy: Davies H. A. , Harland C. L. , Betacourt J. I. , Wang Z. C.
• Języki publikacji: EN

Abstrakty

EN

Nanocrystalline melt-spun rare earth - iron - boron alloys based on Pr and on Nd-Pr mixtures have been studied. Their magnetic properties are compared with those of corresponding alloy ribbons based on Nd. The Pr containing alloys have gener-ally higher coercivity than their Nd counterparts because of the higher anisotropy constant of the Pr2Fe14B phase. Co substitution for Fe increases the Curie tem-perature for both the Pr and Nd-Pr nanophase alloys. excellent magnetic property combinations were achieved for single phase Pr12(Fe100-xCox)82B6 (x = 0 - 20) alloys, processed by overquenching and devitrification annealing. Addition of 1 at % Zr as a grain refiner resulted in increased coercivity and maximum energy product of NdPrFeB alloys for the whole range of RE contents studied (8 - 12 at %).

Słowa kluczowe

EN

magnetic properties; nanocomposite alloys

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2001
• Tom: Vol. 1, nr 1(1)
• Strony: 7--18
• Opis fizyczny: Bibliogr. 29 poz., 7 rys.

Twórcy

autor

Davies H. A.

• Department of Engineering Materials, University of Sheffield, United Kingdom

autor

Harland C. L.

• Department of Engineering Materials, University of Sheffield, United Kingdom

autor

Betacourt J. I.

• Department of Engineering Materials, University of Sheffield, United Kingdom

autor

Wang Z. C.

• Department of Engineering Materials, University of Sheffield, United Kingdom

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