ISSN:
1013-9826
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:
The oxidation behavior of ZrB2-20 vol.% SiC (ZS) and ZrB2-20 vol.% SiC containing 20 vol.%short carbon fiber (ZSC) was studied using thermal gravimetric analysis and oxyacetylene torch test. Itwas shown that weight gains changed from 3.71 wt.% for ZS to 4.57 wt.% for ZSC after heating 10°C/min to 1450°C in air. A thin layer of Si-rich glass and then a depletion layer of SiC was found on the crosssection of both materials and carbon fiber of ZSC exposed in air was oxidized. Under oxyacetylene, anaverage mass loss of 0.8 wt.% for ZS and 0.9 wt.% for ZSC was measured after 180 seconds. Afterexposure, an oxidized layer with the formation of ZrO2 and SiO2 was found on the surface of bothmaterials. Meanwhile, fiber in the surface of ZSC appeared oxidized and removed
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.1753.pdf
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