Statistics – Applications
Scientific paper
Feb 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..699.1060d&link_type=abstract
SPACE TECHNOLOGY AND APPLICATIONS INTERNAT.FORUM-STAIF 2004: Conf.on Thermophys.in Microgravity; Commercial/Civil Next Gen.Space
Statistics
Applications
Spaceborne And Space Research Instruments, Apparatus, And Components, Features, Landmarks, Mineralogy, And Petrology, Chemical Exchanges
Scientific paper
The interaction between water and reduced ilmenite samples as produced in a hydrothermal reduction process has been investigated at temperature of 1070 and 1223 K utilizing a Ugine-Setaram Thermobalance coupled with a mass-spectrometer. The experimental data show that the process of oxidation of reduced ilmenite is feasible at high temperature giving rise to the formation of FeO and Fe2O3 at different stages of oxidation. The process occurs according to the reactions: Fe(s), TiO2(s) (reduced ilmenite)+H2O(g)=FeO(s)+TiO2(s)+H2(g) and 2 FeO(s), 2 TiO2(s)+H2O(g)=Fe2O3(s)+2 TiO2(s)+H2(g). The oxidative process has been investigated as a function of water partial pressure in an argon carrier and as a function of the granulometry of the powder. An analysis of the residue before and after the oxidation process shows some peculiarities in the morphology of the condensed phase that will be discussed in the paper.
Brunetti Bruno
de Maria Giovanni
Ferro Daniela
Trionfetti Giuseppe
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