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:
The bimodal-structured materials composed of Al-5wt%Mg alloy and its compositesreinforced with SiC and Al2O3 particles were prepared by ball-milling and subsequent compactionunder the pressure of 350MPa and sintering at temperatures ranging from 973K to 1173K for 1h, 3hand 5h. The macro-interface between Al-Mg and Al-Mg/ Al2O3 composite was macroscopicallywell-bonded compared to that between Al-Mg and Al-Mg/SiC composite under same sinteringconditions. The bonding of macro-interface became better as the sintering time and temperatureincreased, resulting in that the bimodal-structured materials sintered at 1173K for 5h showed therelative density of nearly 100%. In addition, the higher sintering temperature was, the moreirregular macro-interface was. The microhardness of macro-interface area was in between the Al-Mg and composites, which was independent of the sintering temperature
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.534-536.821.pdf
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