Structure Peculiarities of Nanocomposite Powder Fe40Al/Al2O3 Produced by MASHS
Structure investigation results for MASHS powder Fe40Al/Al2O3 are presented. The powder structure formation proceeds via two stages. On the first step (mechanical activation) aluminothermal reaction takes plays in the system Fe+Al+Fe2O3, leading to formation of nanocomposite precursor Fe-Al-Al2O3. On the second step (SHS), iron and aluminum reacts, forming intermetallic FeAl. As-synthesized composite powder completely inherits the precursor structural morphology in spite of the phase transformations taking place during the production process. Such a production route provides the formation of intergrowth nanocomposite material structure with improved interfacial strength.
Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim
T. Talaka et al., "Structure Peculiarities of Nanocomposite Powder Fe40Al/Al2O3 Produced by MASHS", Materials Science Forum, Vols. 534-536, pp. 1421-1424, 2007