ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Lightweight B4C/Al composites were produced from powders of boron carbide andaluminum by self-propagating high-temperature synthesis (SHS). The effects of postdensificationheat treatment at different temperatures and environmental conditions on phase transformations andproperties evolution were studied. Heat treatment processing that followed the synthesis was appliedusing low heating rate in temperature range from 400°C up to 1500°C. An interconnectedmultiphase (B4C, Al3BC, and c-BN) microstructure was produced in composite as a result of heattreatment at temperatures below 1080°C. The formation of hard and brittle reaction products (AlN,AlB2, Al4C3, and Al8B4C7) at temperatures above 1150°C causes decrease in bending strength andincrease in resistance to unlubricated sliding wear
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.138.175.pdf
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