Identyfikatory
Warianty tytułu
Energia aktywacji krystalizacji pierwotnej szkła metalicznego Fe95Si5
Języki publikacji
Abstrakty
The primary crystallization process of Fe95Si5 metallic glass was investigated by DSC and X-ray diffraction methods. The crystalline phase α-Fe(Si) was identified during the primary crystallization process. The activation energy of crystallization Ea has been calculated in the frame of two models: Kissinger and Ozawa. The activation energy for primary crystallization of amorphous Fe95Si5 alloy are determined as 235.2 and 247.3 kJ mol-1 by means of the Kissinger and Ozawa equations, respectively.
Proces krystalizacji pierwotnej szkła metalicznego Fe95Si5 badano metodą różnicowej kalorymetrii skaningowej (DSC) oraz dyfraktometrii rentgenowskiej. Zidentyfikowano fazę powstającą podczas pierwszego etapu krystalizacji jako α-Fe(Si). Obliczono energię aktywacji przemiany krystalicznej na podstawie dwóch modeli: Kissingera oraz Ozawy. Energia aktywacji obliczona z równań Kissingera i Ozawy wyniosła odpowiednio 235,2 oraz 247,3 kJ mol-1.
Rocznik
Tom
Strony
93--100
Opis fizyczny
Bibliogr. 15 poz., tab., wykr.
Twórcy
autor
- Chair of Functional Materials and Nanotechnology, University of Warmia and Mazury in Olsztyn, adam.fraczyk@uwm.edu.pl
Bibliografia
- BHATTACHARYA S., LASS E.A., POON S.J., SHIFLET G.J. 2009. High thermal stability of soft magnetic (Fe,Co)-Mo-B-C-P-Si metallic glasses. Journal of Alloys and Compounds, 488: 79-83.
- JAKUBCZYK E., KRAJCZYK A., JAKUBCZYK M. 2007. Crystallization of amorphous Fe78Si9B13 alloy. Journal of Physics: Conference Series, 79.
- KISSINGER H. E. 1957. Reaction kinetics in differential thermal analysis. Analytical Chemistry, 29: 1702-1706.
- LI H.X., JUNG H.Y., YI S. 2008. Glass forming ability and magnetic properties of bulk metallic glasses Fe68.7-xC7.0Si3.3B5.5P8.7Cr2.3Mo2.5Al2.0Cox (x = 0-10). Journal of Magnetism and Magnetic Materials, 320: 241-245.
- LIU D.Y., SUN W.S., WANG A.M., ZHANG H.F., HU Z.Q. 2004. Preparation, thermal stability, and magnetic properties of Fe-Co-Zr-Mo-W-B bulk metallic glass. Journal of Alloys and Compounds, 370: 249-253.
- MA´LEK J. 2000. Kinetic analysis of crystallization processes in amorphous materials. Thermochimica Acta, 355: 239-253.
- MINIĆ D.M., GAVRILOVIĆ A., ANGERERB P., MINIĆ D.G., MARICˇIĆ A. 2009. Thermal stability and crystallization of Fe89.8Ni1.5Si5.2B3C0.5 amorphous alloy. Journal of Alloys and Compounds, 482: 502-507.
- NOBUYUKI N., KENJI A., AKIHISA I. 2007. Novel applications of bulk metallic glass for industrial products. Journal of Non-Crystalline Solids, 353: 3615-3621.
- OZAWA T. 1970. Kinetic analysis of derivative curves in thermal analysis. Journal of Thermal Analysis, 2: 301-324.
- RIBEIRO R. M., SANTOS D. S., BIASI R. S. 2004. Crystallization kinetics of the (Fe50Co50)73.5Ag1Nb3Si13.5B9 amorphous alloy. Journal of Alloys and Compounds, 363: 232-235.
- RIBEIRO R.M., BIASI R.S., SANTOS D.R., SANTOS D.S. 2009. Nanocrystallization of Fe-based amorphous metallic alloys studied by non-isothermal and isothermal techniques. Journal of Alloys and Compounds, 483: 495-498.
- SAHINGOZA R., EROLA M., GIBBS M.R.J. 2004. Observation of changing of magnetic properties and microstructure of metallic glass Fe78Si9B13 with annealing. Journal of Magnetism and Magnetic Materials, 271: 74-78.
- SANTOS D.R., SANTOS D.S. 2001. Crystallization Kinetics of Fe-B Based Amorphous Alloys Studied in-situ using X-rays Diffraction and Differential Scanning Calorimetry, Materials Research, 4(1): 47-51.
- SOLIMAN A.A., AL-HENITI S., AL-HAJRY A., AL-ASSIRI M., AL-BARAKATI G. 2004. Crystallization kinetics of melt-spun Fe83B17 metallic glass. Thermochimica Acta, 413: 57-62.
- WANG H.R, GAO Y.L., YE Y. F., MIN G.H., CHEN Y., TENG X.Y. 2003. Crystallization kinetics of an amorphous Zr-Cu-Ni alloy: calculation of the activation energy. Journal of Alloys and Compounds, 353: 200-206.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BAR0-0060-0008