Nanocrystallization of Al-rare earth amorphous alloys studied in-situ by real-time X-ray diffraction.

• Autorzy: Antonowicz J.
• Konferencja: International Conference on Fabrication and Properties of Metallic Nanomaterials, Warsaw, 17-19 June, 2004.
• Języki publikacji: EN

Abstrakty

EN

Nanocrystallization of five binary Al-RE (RE = rare earth) amorphous alloys was investigated in-situ using the real-time X-ray diffraction technique. Crystalline volume friction and mean grain size time evolutions during isothermal annealing were calculated. The average nanocrystal size was found to be nearly constant during the transformation progress in all investigated systems. The results indicate that the nanocrystallization process is controlled by the nucleation rate and the diffusion controlled growth plays minor role in overall transformation kinetics.

Słowa kluczowe

EN

nanocrystalization; amorphous alloy; X-ray diffraction

PL

nanokrystalizacja; stop amorficzny; dyfrakcja promieniowania rentgenowskiego

• Wydawca: Komitet Nauki o Materiałach PAN
• Czasopismo: Archives of Materials Science
• Rocznik: 2004
• Tom: Vol. 25, nr 4
• Strony: 351--356

Twórcy

autor

Antonowicz J.

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

• Faculty of Physics, Warsaw University of Technology, Koszykowa 75, 00-662 Warsaw, Poland

Bibliografia

• [1] A. Inoue, Prog. Mater. Sci., 43, 365 (1998).
• [2] D. R. Allen, J. C. Foley, J. H. Perepezko, Acta Mater., 46, 431 (1998).
• [3] M. Calin, U. Köster, Proc. ISMANAN-97 (Barcelona 1997), Mat. Sci. Forum 269-272, 749 (1998).
• [4] P. Jaśkiewicz, K. Pękała, J. Latuch, NanoStructured Materials 11, 733 (1999).
• [5] http://www.esrf.frAJsersAndScience/Experiments/MaterialsScience/IDll/.
• [6] J. Antonowicz, A. R. Yavari, G. Vaughan, Nanotechnology 15, 1038 (2004).
• [7] A. R. Yavari, Phys. Lett. A, 95, 165 (1983).
• [8] http://www.esrf.fr/computing/scientific/dabax/.
• [9] M. J. Berger, J. H. Hubbell, S. M. Seltzer, J. S. Coursey, D. S. Zucker, 1999 XCOM: Photon Cross Section Database (Version 1.2) (Gaithersburg, MD: National Institute of Standards and Technology) Available: http://physics.nist.gov/xcom.