RT Journal Article
T1 Self-propagating combustion synthesis of intermetallic matrix composites in the ISS
A1 Orrù, Roberto
A1 Licheri, Roberta
A1 Locci, Antonio Mario
A1 Cao, Giacomo
A1 Wilde, Jimmy De
A1 Lemoisson, Fabienne
A1 Froyen, Ludo
A1 Beloki, Inigo A.
A1 Sytschev, Alexander E.
A1 Rogachev, Alexander S.
A1 Jarvis, David J.
AB Combustion Synthesis experiments have been performed on the ISS (International Space Station) during the Belgian taxi-flight mission ODISSEA in November 2002, in the framework of the ESA-coordinated project COSMIC (Combustion Synthesis under Microgravity Conditions). The main objective of the experiments was to investigate the general physico-chemical mechanisms of combustion synthesis processes and the formation of products microstructure. Within the combustion zone, a number of gravity-dependent phenomena occur, while other phenomena are masked by gravity. Under certain conditions, gravity-dependent secondary processes may also occur in the heat-affected zone after combustion. To study the influence of gravity, a specially dedicated reactor ensemble was designed and used in the Microgravity Science Glovebox (MSG) onboard the ISS. In this work, the experiment design is first discussed in terms of the experimental functionality and reactor ensemble integration in the MSG. To investigate microstructure formation, a sample constituted by a cylindrical portion followed by a conical one, the latter being inserted inside a massive copper block, is used. The experiment focused on the synthesis of intermetallic matrix composites (IMCs) based on the Al-Ti-B system. Depending on the composition, different intermetallic compounds (TiAl and TiAl3) can be formed as matrix phase while TiB2 represents the reinforcing particulate phase. During the ISS mission, six samples with a relatively high green density of 65%TD have successfully been processed. The influence of the composition on the combustion process will be examined.
SN 0938-0108
YR 2007
FD 2007-09
LK https://hdl.handle.net/11556/3598
UL https://hdl.handle.net/11556/3598
LA eng
NO Orrù , R , Licheri , R , Locci , A M , Cao , G , Wilde , J D , Lemoisson , F , Froyen , L , Beloki , I A , Sytschev , A E , Rogachev , A S & Jarvis , D J 2007 , ' Self-propagating combustion synthesis of intermetallic matrix composites in the ISS ' , Microgravity Science and Technology , vol. 19 , no. 5-6 , pp. 85-89 . https://doi.org/10.1007/BF02919459
NO The authors would like to thank the European Space Agency ESA for financial support.
DS TECNALIA Publications
RD 2 sept 2024