ISSN:
1662-8985
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:
Alumina-iron nanocomposite powders containing 5vol.% of iron were fabricated byhigh-energy ball milling with different ball-to-powder weight ratios (BPRs) as part of the study ofceramic-metal nanocomposite magnetic materials. The microstructure and morphology of thecomposite powders were characterized using the X-ray diffraction, optical microscopy and scanningelectron microscopy. XRD analysis and SEM examination in combination with energy dispersiveX-ray spectrometry confirmed that the nanocomposite structure of the powder particles formed onlyafter 8 hours milling for both BPRs used. With a higher BPR of 16:1, Fe-Cr alloy material wasbroken from the stainless steel balls and incorporated into the nanocomposite powder. However,such a problem did not occur with a lower BPR of 5:1. The mechanism for formation of the aluminamatrix nanocomposite powder is found to be dependent on BPR and milling time
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.29-30.131.pdf
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