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Millan, M.
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Publications (6/6 displayed)
- 2019Phenanthrene catalytic cracking in Supercritical Water: effect of the reaction medium on NiMo/SiO2 catalystscitations
- 2017Stability and performance of robust dual-phase (ZrO2)0.89(Y2O3)0.01(Sc2O3)0.10-Al0.02Zn0.98O1.01 oxygen transport membranescitations
- 2016Preferential Co partitioning to alpha-Fe in nanocrystalline CoFeNbB alloys by Mn additioncitations
- 2009Supersaturated solid solution obtained by mechanical alloying of 75% Fe, 20% Ge and 5% Nb mixture at different milling intensitiescitations
- 2008An equivalent time approach for scaling the mechanical alloying processescitations
- 2005Pillared clays as catalysts for hydrocracking of heavy liquid fuelscitations
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article
Supersaturated solid solution obtained by mechanical alloying of 75% Fe, 20% Ge and 5% Nb mixture at different milling intensities
Abstract
<p>Mechanical alloying process of Fe<sub>75</sub>Ge<sub>20</sub>Nb<sub>5</sub>composition has been studied at different milling frequencies from initial pure powder mixture to the development of a single bcc phase (supersaturated solid solution). As an intermediate state, an intermetallic phase is formed, which disappears after further milling or after thermal treatment (ascribed to an endothermic process at 700-800 K). A preferential partition of Nb and Ge to the boundaries between nanocrystals of bcc Fe-Ge-Nb supersaturated solid solution is observed from X-ray diffraction (XRD) and Mössbauer results. © 2008 Elsevier B.V. All rights reserved.</p>