ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
CVD (chemical vapor deposition) SiC continuous fiber is used as reinforcement of metalmatrix composites because of its high strength, high stiffness and elevated temperature stability. Inthis work, anodic oxidation method was used to treat the surface of carbon coated SiC fiber. Then thesurface of treated fiber was compared with untreated one by scan electron microscopy (SEM), energydispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). SiC was detectedon the surface of untreated carbon-rich coating. It is proved by XPS that SiC was transformed intoSiO2 after treatment. About 100~200nm thick oxidation layer was detected on the surface ofcarbon-rich coating and the structure of double coatings formed. Because the surface of fiber becamesmooth and the tensile stress on it was relaxed after treatment, the tensile strength of fiber wasimproved by 8%~20% average and the dispersing ratio of it was reduced
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.1571.pdf
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