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:
Fe-Al intermetallic/TiC-Al2O3 ceramic composites were fabricated by in-situ carbothermicand aluminothermic reduction from natural ilmenite. Synthesis and sintering of the composites wereaccomplished unanimously in the vacuum hot pressure furnace. The thermodynamic process, thecomposition, the microstructure as well as the properties of the FeTiO3-Al-C system were studied indetail through theoretical analysis and experimental research. It was shown that the synthesis processstarted from the melting aluminium, followed by the deoxidation of ilmenite step by step via a series ofdifferent valent titanium oxides to form TiC, Al2O3 and Fe-Al as the ultimate productions. The particlesizes are mostly 3-5μm, and their distributions are uniform. Meanwhile, the addition of additives canimprove the wettability of alloy to ceramic phases and the combination of the interfaces, giving rise to theproperties of the composites as a whole
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.1501.pdf
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