Author/Authors :
Lei، نويسنده , , J.P. and Dong، نويسنده , , X.L. and Zhu، نويسنده , , X.G. and Lei، نويسنده , , M.K. and Huang، نويسنده , , H. and Zhang، نويسنده , , X.F. and Lu، نويسنده , , B. and Park، نويسنده , , W.J. and Chung، نويسنده , , H.S.، نويسنده ,
Abstract :
Intermetallic Fe–Sn nanoparticles were prepared by a DC arc discharge method and investigated using X-ray diffraction, high-resolution transmission electron microscopy (HRTEM) and differential scanning calorimetry (DSC) analysis. The synthesized nanoparticles have a shell/core structure with an SnO2 shell of 5–10 nm in thickness and a core of polycrystalline intermetallic compounds. It was found that the intermetallic compounds FeSn2 and Fe3Sn2 were generated and coexist with the Sn phase as a single nanoparticle. The DSC analysis showed that Fe–Sn nanoparticles have high oxidation resistance in air. A mechanism of the nanoparticle formation was also interpreted on the basis of experimental results and thermodynamic principles.
Keywords :
A. Nanostructured intermetallics , D. Microstructure , prediction , E. Phase stability , B. Oxidation
