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:
Al-base and Fe-base powders have been amorphized by a high energy milling process inan Attritor miller. Microstructural evolution in powder particles has been analyzed by XRD, DSC,SEM and TEM. The conventional route of cold pressing and sintering applied to these powdersdoes not result adequate to preserve their amorphous or nanometric character. An additionaldisadvantage of this route appears during the cold pressing stage, as a consequence of theinsufficient green strength of the compacts, due to the high hardness of the milled powders. In orderto avoid these difficulties a new consolidation technique, electrical resistance sintering (ERS), hasbeen successfully employed. ERS consolidated compacts have been microstructurally characterizedby optical microscopy and XRD, showing that compacts preserve their amorphous and/ornanometric character
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/19/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.587-588.375.pdf
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