Phase composition investigations of the Nd-Fe alloys processed by various methods

• Autorzy: Pawlik K. , Wysłocki J. , Olszewski J. , Bodak O. , Pawlik P.
• Konferencja: Proceedings of the All-Polish Seminar on Mössbauer Spectroscopy OSSM'04
• Języki publikacji: EN

Abstrakty

EN

Abstract In the paper, the phase composition changes for the series of Nd10+xFe90 x (x = 0; 0.5; 1; 1.5; 2; 2.5; 3; 3.5; 4) binary alloys, produced by long time annealing and rapid solidification methods were investigated. X-ray diffractometry and Mössbauer spectroscopy were used to determine the phase composition of the alloys. These structural investigations revealed the existence of two crystalline phases in the long time annealed samples: bcc á-Fe and rhombohedral Nd2Fe17 of the Th2Zn17-type structure. Furthermore, the single phase region was observed for the Nd concentration above 12 at.%. For the rapidly solidified ribbon samples, a low volume fraction of the alfa-Fe and the crystalline phase of hexagonal symmetry were detected.

Słowa kluczowe

EN

Nd-Fe binary system; intermetallic compounds; Mössbauer spectroscopy; phase composition

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2004
• Tom: Vol. 49,suppl.3
• Strony: 27--31
• Opis fizyczny: Bibliogr. 8 poz., rys.

Twórcy

autor

Pawlik K.

• Department of Materials Processing Technology and Applied Physics, Institute of Physics, Częstochowa University of Technology, 19 Armii Krajowej Ave., 42-200 Częstochowa, Poland, Tel./Fax: [phone]

autor

Wysłocki J.

• Department of Materials Processing Technology and Applied Physics, Institute of Physics, Częstochowa University of Technology, 19 Armii Krajowej Ave., 42-200 Częstochowa, Poland, Tel./Fax: [phone]

autor

Olszewski J.

• Department of Materials Processing Technology and Applied Physics, Institute of Physics, Częstochowa University of Technology, 19 Armii Krajowej Ave., 42-200 Częstochowa, Poland, Tel./Fax: [phone]

autor

Bodak O.

• Institute of Chemistry and Environment Protection, Pedagogical University of Częstochowa, 13/15 Armii Krajowej Ave., 42-200 Częstochowa, Poland and Department of Inorganic Chemistry, Lviv State University, 290005 Lviv, Ukraine

autor

Pawlik P.

• Department of Materials Processing Technology and Applied Physics, Institute of Physics, Częstochowa University of Technology, 19 Armii Krajowej Ave., 42-200 Częstochowa, Poland, Tel./Fax: [phone]

Bibliografia

• 1. Buschow KHJ (1977) Intermetallic compounds of rare-earth and 3d transition metals. Rep Prog Phys 40:1179−1256
• 2. Herbst JF, Croat JJ, Lee RW, Yelon WB (1982) Neutron diffraction studies of Nd2(CoxFe1−x)17 alloys: preferential site occupation and magnetic structure. J Appl Phys 53;1:250−256
• 3. Long GJ, Pringle OA, Grandjean F, Buschow KHJ (1992) A Mössbauer effect study of the microscopic magnetic properties of Nd2Fe17 and Nd2Fe17N2.6. J Appl Phys 72;10:4845−4854
• 4. Pawlik K, Pawlik P, Wysłocki JJ (2004) The influence of Nd content on the phase structure and magnetic properties of Nd-Fe alloys produced by various methods. In: Proc on 5th Int Conf on New Technologies and Achievements of Metallurgy and Material Science, 20 May 2004, Częstochowa, Poland, pp 736−739
• 5. Ray AE (1966) The crystal structure of CeFe7, PrFe7, NdFe7 and SmFe7. Acta Cryst 21:426−430
• 6. Rupp B, Wiesinger G (1988) Magnetic and structural properties of a novel ternary hydride: Nd2Fe17Hx (0 < x < 5).J Magn Magn Mater 71:269−278
• 7. Schneider G, Henig ET, Petzow G, Stadelmaier HH (1987) The binary system iron-neodymium. Z Metallkd 78;10:694−696
• 8. Teresiak A, Kubis M, Mattern N, Wolf M, Gruner W, Müller K-H (1999) Influence of nitrogenation on structure development and magnetic properties of mechanically alloyed and annealed Sm-Fe powders. J Alloys Compd 292:212−220