Abstract
Carbon fiber reinforced silicon carbide matrix (C/SiC) braking materials were prepared by a reactive melt infiltration method. The microstructure characteristics of SiC were studied by means of optical microscope, scanning electron microscope and transmission electron microscope in combination with component analysis by X-ray diffraction. Results show that β-SiC zone usually forms inside the short-cut fabric, around the needling fibers, and among the fiber bundles in the non-woven web. Residual Si locates among SiC grains. In C/SiC composites, there exist two different areas of SiC, one is coarser β-SiC grains between 5-15μm at the SiC-Si interface, and the other is a zone of a fine grained β-SiC layer with dimension of about 100 nm at the SiC-C interface.
Original language | English |
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Pages (from-to) | 233-237 |
Number of pages | 5 |
Journal | Wuji Cailiao Xuebao/Journal of Inorganic Materials |
Volume | 23 |
Issue number | 2 |
DOIs | |
State | Published - Mar 2008 |
Keywords
- Braking material
- Carbon/silicon carbide
- Microstructure