New processing method for the preparation of interstitially modified Sm-Fe intermetallics.

• Autorzy: Jakubowicz J. , Jurczyk M.
• Konferencja: XV Physical Metallurgy and Materials Science Conference on Advanced Materials & Technologies AMT'98, Kraków-Krynica, Poland, 17-21 May, 1998
• Języki publikacji: EN

Abstrakty

EN

Sm2Fe17-nitrides and Sm2Fe-17-carbonitrides, which have the rhombohedral Th2Zn17 type structure have been synthesized and studied by XRD, SEM and magnetometry. A coercivity of 2.1 MA m -1 has been obtained for Sm2Fe17N-3 powder prepared by HEBM, and a simple one-step mechanical grinding of Sm2Fe17, with organic ring compounds has been used to produce an anisotropic powder. This study demonstrates that formation of an anisotropic Sm2Fe17(C,N)x powders by mechanochemical reaction between Sm2Fe17 and organic ring compounds has a significant potential for the synthesis of powders in an economic method. These materials show intrinsic coercivities, JHc up to 0.55 MA m-1 at room temperature.

Słowa kluczowe

EN

rare earth; nitrides; carbonitrides; samarium; iron; coercivity; anisotropy; magnetic properties

PL

pierwiastki ziem rzadkich; azotek; węglikoazotek; samar; żelazo; koercyjność; anizotropia; własności magnetyczne

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 1998
• Tom: R. XIX, nr 4
• Strony: 827--831

Twórcy

autor

Jakubowicz J.

autor

Jurczyk M.

• Poznań University of Technology, Institute of Materials Science Engineering