4. Evolution under thermal annealing of Mn-doped Iron Disilicides obtained by Ball Milling

J. MARTÍNEZ; J. RUNCO; S. M. COTES; M. A. TAYLOR; J. DESIMONI

Foz Iguazú

Simposio; XIV International Conference on Hyperfine Interactions & XVIII International Symposium on Nuclear Quadrupole Interactions.; 2007

Comité Proceedings of the 14th International Conference on Hyperfine Interactions and 18th International Symposium on Nuclear Quadrupole

The  strong and continual interest in the iron disilicides, with a wide spectrum of physical properties, rest on the fundamental issues related to the stability of the phases, growth kinetics, interface structure and on the technological applications to microelectronics, thermoelectric, photovoltaic and optoelectronics. Phases obtained in the Fe-Si system are extremely depending on the experimental conditions of the synthesis. Non-equilibrium processing techniques like mechanical alloying allow the formation of stable and metastable phases at Room Temperature (RT). Phase formation in the Mn doped iron disilicide system Fe1-xMnxSi2 with 0.00 £ x £ 0.24 was study using X-ray diffraction (XRD) and  Mössbauer Spectroscopy.