Al2O2 Nanoparticle Reinforced Fe-based Alloys Synthesized by Thermite Reaction
2012 (English)In: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 47, no 8, 3585-3591 p.Article in journal (Refereed) Published
It is very difficult to manufacture oxide nanoparticle strengthened alloys through the conventional casting in the gravity field or even in the space microgravity environment. A thermite reaction process was used to produce molten metal that was then solidified in a graphite mold in super gravity field caused by centrifugal force; we were able to obtain Al2O3 nanoparticle reinforced Fe-based alloys. The formation of Al2O3 nanoparticles was related to the addition of TiO2 xerogel to the thermite mixture, and their uniform distribution in the alloy can be explained by their assembly in (Ni, Fe)Al intermetallics during solidification owing to the low interfacial energy between them.
Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2012. Vol. 47, no 8, 3585-3591 p.
Engineering and Technology Materials Engineering
IdentifiersURN: urn:nbn:se:liu:diva-74566DOI: 10.1007/s10853-011-6204-2ISI: 000299524400012OAI: oai:DiVA.org:liu-74566DiVA: diva2:488179
funding agencies|National Natural Science Foundation of China (NSFC)|