Transcript Prezentacja programu PowerPoint

Gold-iron System
investigated by means of the Mössbauer Spectroscopy
and X-ray Diffraction
Artur Błachowski 1, Krzysztof Ruebenbauer 1, Jan Żukrowski 2, Janusz Przewoźnik 2
1
Mössbauer Spectroscopy Division,
Institute of Physics, Pedagogical University, Kraków, Poland
2
Solid State Physics Department, Faculty of Physics and Applied Computer Science,
AGH University of Science and Technology, Kraków, Poland
Fe-Au Phase Diagram
T.B. Massalski, Binary Alloy Phase Diagrams, 1990
Mössbauer Spectroscopy
as-cast
Fe100-cAuc annealed 500oC / 48h
X-ray Diffraction
Fe100-cAuc
SEM Fe70Au30
Fe50Au50
Fe
Au
Fe30Au70
Fe
Au
Conclusions
1) Ferromagnetic order at room temperature of FCC–Au(Fe) phase,
disappears after annealing at 500ºC / 48h.
2) Nanoparticles of FCC-Au(Fe) and BCC-Fe(Au) phases
with diameter about 50 nm.