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Order-disorder phenomena from X-ray diffraction in FeCo alloys annealed and ground at high energy

Published online by Cambridge University Press:  05 March 2012

J. M. Loureiro ,
A. C. Batista ,
V. A. Khomchenko ,
B. F. O. Costa  and
G. Le Caër
J. M. Loureiro
Affiliation:
CEMDRX, Physics Department, University of Coimbra, P-3004-516 Coimbra, Portugal
A. C. Batista
Affiliation:
CEMDRX, Physics Department, University of Coimbra, P-3004-516 Coimbra, Portugal
V. A. Khomchenko
Affiliation:
CEMDRX, Physics Department, University of Coimbra, P-3004-516 Coimbra, Portugal
B. F. O. Costa*
Affiliation:
CEMDRX, Physics Department, University of Coimbra, P-3004-516 Coimbra, Portugal
G. Le Caër
Affiliation:
IPR, UMR URI-CNRS 6251, Université de Rennes I, Campus de Beaulieu, Bat 11A, F-35042 Rennes Cedex, France
*
a)Author to whom correspondence should be addressed. Electronic mail: benilde@ci.uc.pt
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Abstract

Order-disorder transformations were studied in annealed and high-energy ball-milled near-equiatomic FeCo alloys. X-ray diffraction with Co Kα radiation enables to follow disordering with milling time because of anomalous dispersion.

Keywords

order-disorderB2 structureFeCo alloysX-ray diffraction
Type
Technical Articles
Information
Powder Diffraction , Volume 26 , Issue 3 , September 2011 , pp. 267 - 272
Copyright
Copyright © Cambridge University Press 2011

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References

Brüning, R., Samwer, K., Kuhrt, C., and Schultz, L. (1992). “The mixing of iron and cobalt during mechanical alloying,” J. Appl. Phys. 72, 2978–2983. 10.1063/1.351504CrossRefGoogle Scholar
Cahn, R. W. (1999). “Disordering and reordering of mechanically milled superlattice alloys,” Bull. Mater. Sci. 22, 175–180. 10.1007/BF02749916CrossRefGoogle Scholar
Chakka, V. M., Altuncevahir, B., Jin, Z. Q., Li, Y., and Liu, J. P. (2006). “Magnetic nanoparticles produced by surfactant-assisted ball milling,” J. Appl. Phys. 99, 08E912-1–08E912-3. 10.1063/1.2170593CrossRefGoogle Scholar
Collins, G. S. and Meeves, B. H. (1993). “Formation of FeCo by mechanical alloying,” Scr. Metall. Mater. 29, 1319–1323. 10.1016/0956-716X(93)90131-BCrossRefGoogle Scholar
Eymery, J. P. and Moine, P. (1978). “Ordre atomique et spectrométrie Mössbauer dans l’alliage Fe-Co équiatomique,” J. Phys. Lett. 39, L-23–L-28. 10.1051/jphyslet:0197800390202300CrossRefGoogle Scholar
Elkalkouli, R., Grosbras, M., and Dinhut, J. F. (1995). “Mechanical and magnetic properties of nanocrystalline FeCo alloys produced by mechanical alloying,” Nanostruct. Mater. 5, 733–743. 10.1016/0965-9773(95)00283-KCrossRefGoogle Scholar
Fultz, B. (1991). “Kinetics of short-range and long-range B2 ordering in FeCo,” Phys. Rev. B 44, 9805–9811. 10.1103/PhysRevB.44.9805CrossRefGoogle ScholarPubMed
Gaffet, E., Bernard, F., Nièpce, J. C., Charlot, F., Gras, C., Le Caër, G., Guichard, J. L., Delcroix, P., Mocellin, A., and Tillement, O. (1999). “Some recent developments in mechanical activation and mecanosynthesis,” J. Mater. Chem. 9, 305–314. 10.1039/a804645jCrossRefGoogle Scholar
Garroni, S., Delogu, F., Mulas, G., and Cocco, G. (2007). “Mechanistic inferences on the synthesis of Co50Fe50 solid solution by mechanical alloying,” Scr. Mater. 57, 964–967. 10.1016/j.scriptamat.2007.07.010CrossRefGoogle Scholar
Gialanella, S., Amils, X., Baro, M. D., Delcroix, P., Le Caër, G., Lutterotti, L., and Surinach, S. (1998). “Microstructural and kinetic aspects of the transformation induced in a FeAl alloy by ball-milling and thermal treatments,” Acta Mater. 46, 3305–3316. 10.1016/S1359-6454(97)00484-9CrossRefGoogle Scholar
Guinier, A. (1963). X-Ray Diffraction in Crystals, Imperfect Crystals and Amorphous Bodies (W. H. Freeman and Company, San Francisco).Google Scholar
Hamdeh, H. H., Fultz, B., and Pearson, D. H. (1989). “Mössbauer spectrometry study of the hyperfine fields and electronic structure of Fe-Co alloys,” Phys. Rev. B 39, 11233–11240. 10.1103/PhysRevB.39.11233CrossRefGoogle ScholarPubMed
Jang, J. S. C. and Koch, C. C. (1990). “Amorphization and disordering of the Ni3Al ordered intermetallic by mechanical milling,” J. Mater. Res. 5, 498–510. 10.1557/JMR.1990.0498CrossRefGoogle Scholar
Le Caër, G. and Dubois, J. M. (1979). “Evaluation of hyperfine parameter distributions from overlapped Mossbauer spectra of amorphous alloys,” J. Phys. E 12, 1083–1090. 10.1088/0022-3735/12/11/018CrossRefGoogle Scholar
Le Caër, G., Delcroix, P., Malaman, B., Welter, R., Fultz, B., and Ressouche, E. (1997). “Comparison of disorder induced thermally and by ball milling in Ni2MnSn,” Mater. Sci. Forum 235–238, 589–594.Google Scholar
Le Caër, G., Ziller, T., Delcroix, P., and C. Bellouard, C. (2000). “Mixing of iron with various metals by high-energy ball milling of elemental powder mixtures,” Hyperfine Interact. 130, 45–70. 10.1023/A:1011009325097CrossRefGoogle Scholar
Li, H. F. and Ramanujan, R. V. (2004). “Mechanical alloying of FeCo nanocrystalline magnetic powders,” J. Electron. Mater. 33, 1289–129710.1007/s11664-004-0155-1CrossRefGoogle Scholar
Lucas, M. S., Muñoz, J. A., Mauger, L., Li, C. W., Sheets, A. O., Turgut, Z., Horwath, J., Abernathy, D. L., Stone, M. B., Delaire, O., Xiao, Y., and Fultz, B. (2010). “Effects of chemical composition and B2 order on phonons in bcc Fe–Co alloys,” J. Appl. Phys. 108, 023519-1–023519-6.Google Scholar
Moumeni, H., Alleg, S., and Grenèche, J. M. (2005). “Structural properties of Fe50Co50 nanostructured powder prepared by mechanical alloying,” J. Alloys Compd. 386, 12–19. 10.1016/j.jallcom.2004.05.017CrossRefGoogle Scholar
Neumayer, M. and Fähnle, M. (2001). “Atomic defects in FeCo: Stabilization of the B2 structure by magnetism,” Phys. Rev. B 64, 132102-1–132102-4. 10.1103/PhysRevB.64.132102CrossRefGoogle Scholar
Nie, Y., He, H. H., Gong, R. Z., and Zhang, X. C. (2007). “The electromagnetic characteristics and design of mechanically alloyed Fe–Co particles for electromagnetic-wave absorber,” J. Magn. Magn. Mater. 310, 13–16. 10.1016/j.jmmm.2006.07.021CrossRefGoogle Scholar
Pochet, P., Tominez, E., Chaffron, L., and Martin, G. (1995). “Order-disorder transformation in Fe-Al under ball milling,” Phys. Rev. B 52, 4006–4016. 10.1103/PhysRevB.52.4006CrossRefGoogle ScholarPubMed
International Tables for Crystallography, Vol. C: Mathematical, Physical and Chemical Table, Edited by Prince, E., (2006) (Kluwer, Dordecht, Netherlands).CrossRefGoogle Scholar
Rodriguez-Carvajal, J. (1998). FULLPROF (Computer Software), Laboratoire Léon Brillouin CEA-CNRS, Grenoble, France.Google Scholar
Sarkar, S. and Bansal, C. (2001). “Kinetic paths for B2 order in nanocrystalline FeCo–Mo: A Mössbauer spectroscopy study,” Acta Mater. 49, 1789–1792. 10.1016/S1359-6454(01)00081-7CrossRefGoogle Scholar
Schaf, J., Le Dang, K., Veillet, P., and Campbell, I. A. (1983). “Extended and local effects of cold work in Heusler alloys,” J. Phys. F: Met. Phys. 13, 1311–1316. 10.1088/0305-4608/13/6/028CrossRefGoogle Scholar
Sellmyer, D. J. (2002). “Strong magnets by self-assembly,” Nature 420, 374–375. 10.1038/420374aCrossRefGoogle ScholarPubMed
Shinohara, T., Sasaki, K., Yamauchi, H., Watanabe, H., Sekizawa, H. and Okada, T. (1981). “On the reduction in magnetization by cold working on the ferromagnetic Heusler alloy Pd2MnSn,” J. Phys. Soc. Jpn. 50, 2904–2908. 10.1143/JPSJ.50.2904CrossRefGoogle Scholar
Skomski, R. and Coey, J. M. D. (1993). “Giant energy product in nanostructured two-phase magnets,” Phys. Rev. B 48, 15812–15816. 10.1103/PhysRevB.48.15812CrossRefGoogle ScholarPubMed
Sorescu, M. and Grabias, A. (2002). “Structural and magnetic properties of Fe50Co50 system,” Intermetallics 10, 317–321. 10.1016/S0966-9795(02)00007-9CrossRefGoogle Scholar
Sourmail, T. (2005). “Near equiatomic FeCo alloys: constitution, mechanical and magnetic properties,” Prog. Mater. Sci. 50, 816–880. 10.1016/j.pmatsci.2005.04.001CrossRefGoogle Scholar
Suryanarayana, C. (2001). “Mechanical alloying and milling,” Prog. Mater. Sci. 46, 1–184. 10.1016/S0079-6425(99)00010-9CrossRefGoogle Scholar
Williamson, G. K. and Hall, W. H. (1953). “X-ray line broadening from filed aluminium and wolfram,” Acta Metall. 1, 22–31. 10.1016/0001-6160(53)90006-6CrossRefGoogle Scholar
Zelenakova, A., Oleksakova, D., Degmova, J., Kovac, J., Kollar, P., Kusy, M. and Sovak, P. (2007). “Structural and magnetic properties of mechanically alloyed FeCo powders,” J. Magn. Magn. Mater. 316, e519–e522. 10.1016/j.jmmm.2007.03.005CrossRefGoogle Scholar