D. Lussana
University of Turin
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Publication
Featured researches published by D. Lussana.
Metals and Materials International | 2016
Emanuele Francesco Marano; D. Lussana; Alberto Castellero; M. Baricco
Nanoporous microtubes of a nickel-copper alloy were obtained from a Cu-44Ni-1Mn (wt%) commercial wire (200 μm diameter). A new synthesis method was established through three steps: 1) partial oxidation of the wire at 1173 K in air, 2) removal of the inner unoxidized core by chemical etching, 3) reduction in 10 bar hydrogen atmosphere. During oxidation, the segregation of Cu and Ni occurred because of their different diffusion coefficients in the corresponding oxides. As a consequence, pores were formed by Kirkendall effect and due to selective chemical etching of the different oxides. Additional porosity formed because of volume contraction during reduction with hydrogen. After reduction, the microtube shows a composition gradient from the inner wall (almost pure nickel) to the outer wall (almost pure copper). The process allowed to obtain microtubes with tuneable wall thickness and inner pores around 180 ± 80 nm. The morphological features developed suggest improved capillarity properties for applications in MEMS.
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing | 2008
P. Mengucci; G. Barucca; G. Riontino; D. Lussana; M. Massazza; R. Ferragut; E. Hassan Aly
Acta Materialia | 2011
G. Barucca; R. Ferragut; F. Fiori; D. Lussana; P. Mengucci; F. Moia; G. Riontino
Journal of Thermal Analysis and Calorimetry | 2006
G. Riontino; D. Lussana; M. Massazza
Acta Materialia | 2009
G. Barucca; R. Ferragut; D. Lussana; P. Mengucci; F. Moia; G. Riontino
Oxidation of Metals | 2014
D. Lussana; D. Baldissin; M. Massazza; M. Baricco
Journal of Thermal Analysis and Calorimetry | 2008
D. Lussana; M. Massazza; G. Riontino
Journal of Alloys and Compounds | 2008
G. Riontino; D. Lussana; M. Massazza; G. Barucca; P. Mengucci; R. Ferragut
Journal of Alloys and Compounds | 2010
R. Ferragut; F. Moia; F. Fiori; D. Lussana; G. Riontino
Journal of Materials Science | 2006
G. Riontino; D. Lussana; M. Massazza; A. Zanada