کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1464911 | 989674 | 2008 | 4 صفحه PDF | دانلود رایگان |
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 200–250 nm and the formation of Al4C3 at the interface between Al matrix and SCFs was controlled by the α-Al2O3 coatings.
Journal: Ceramics International - Volume 34, Issue 7, September 2008, Pages 1787–1790