Nguyen, Huy Dan and Pham, Thi Thanh and Nguyen, Hai Yen (2011) Inducing anisotropyinbulkNd–Fe–Co–Al–Bnanocrystallinealloysby quenching inmagneticfield. Journal of Magnetism and Magnetic Materials . ISSN 1435–1439
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Abstract
We haveobservedmagneticanisotropyinbulkNd55_xCoxFe30Al10B5 (x¼10, 15and20)alloysprepared by coppermoldsuctioncastingmethodwithapresenceofexternalmagneticfield(quenchingfield) m0H¼0.25 T.Bychangingdirectionofthemeasuringfieldfromperpendiculartoparallelonein comparisonwiththatofthequenchingfield,coerciveforceofthealloysslightlydecreaseswhile remanentmagnetizationandsquarenessofhysteresisloopincreasemoreclearly.Itisalsofoundthat the higherCo-concentrationinthealloysthelargermagneticanisotropyisinduced.Thestructure analysesmanifestnanocrystallineparticlesembeddedinresidualamorphousmatrixofthealloys.The size oftheparticlesisinrangeof10–30nmandtheircrystallinephasesconsistofNd2(Fe,Co)14B, Nd3Co, Nd3Al, NdAl2 and Nd.
| Item Type: | Article |
|---|---|
| Subjects: | Material Science > Nanochemistry |
| ID Code: | 11852 |
| Deposited By: | CSMNT |
| Deposited On: | 23 May 2012 15:29 |
| Last Modified: | 23 May 2012 15:29 |
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