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- Title
MECHANISM AND MICROSTRUCTURE TRANSFORMATION OF 3D-Si/LG5 COMPOSITES BY HIGH TEMPERATURE DIFFUSION TREATMENT.
- Authors
ZIYANG XIU; ZONGQUAN DENG; XIAOFENG WANG; GAOHUI WU
- Abstract
A dense and uniform Sip/LG5 composite were fabricated by squeeze casting technology, and high temperature diffusion treatment was adapted to the composite. Microstructure observation indicated that Si transformed from irregular particles to 3D-structure. Fine dispersive precipitates Si were also observed on Si-Al interface and within Al matrix, smoothing and improving the interface. Based on the microstructure observation, three transformation stages were designated: melting, dissolution and precipitation, solidification. Thermodynamics and kinetics of the transformation can be explained by Gibbs-Thomson effect.
- Subjects
MICROSTRUCTURE; PROPERTIES of matter; MICROMECHANICS; CHEMICAL molding; THERMOELECTRICITY
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2009, Vol 23, Issue 6/7, p1473
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S0217979209061123