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Improvement of interface between Al and short carbon fibers by α-Al2O3 coatings deposited by sol–gel technology
- Source :
-
Ceramics International . Sep2008, Vol. 34 Issue 7, p1787-1790. 4p. - Publication Year :
- 2008
-
Abstract
- Abstract: This paper describes an investigation on an improvement of the interface between Al and short carbon fibers (SCFs) with α-Al2O3 coating by sol–gel technology. The composites of Al/uncoated SCFs and Al/α-Al2O3-**coated SCFs were fabricated successfully by vacuum press infiltration. The formation of α-Al2O3 coating during calcination was analysed by Fourier transform infrared (FTIR) and X-ray diffraction (XRD). Scanning electron microscopy (SEM), energy-dispersive analysis of X-ray (EDAX) and transmission electron microscope (TEM) were used to observe the coated SCFs and the interface of composites. The results showed that the average thickness of the α-Al2O3 coating was about 200–250nm and the formation of Al4C3 at the interface between Al matrix and SCFs was controlled by the α-Al2O3 coatings. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 34
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 33631983
- Full Text :
- https://doi.org/10.1016/j.ceramint.2007.05.008