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pro vyhledávání: '"Alan Savan"'
Publikováno v:
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Within the search for new catalysts for the oxygen reduction reaction in polymer electrolyte membrane fuel cells, alloys of Pt with other transition metals are of great interest due to their increased specific and especially mass activity. However, t
Publikováno v:
Intermetallics. 26:98-109
The shape memory properties of the complete Ti–Ni–Cu thin film system were investigated using combinatorial methods, i.e. fabrication and high-throughput characterization of thin film materials libraries. Thin film composition spreads were deposi
Autor:
Alfred Ludwig, Markus E. Gruner, I. Kock, Peter Entel, S. Hamann, Sigurd Thienhaus, Eckhard Quandt, Stephan Irsen, Christoph Bechtold, Alan Savan, Sebastian Fähler, Stefan G. Mayr, Jörg Buschbeck
Publikováno v:
Acta Materialia. 58:5949-5961
A new ferromagnetic shape memory thin film system, Fe–Pd–Cu, was developed using ab initio calculations, combinatorial fabrication and high-throughput experimentation methods. Reversible martensitic transformations are found in extended compositi
Autor:
Richard D. James, Hayo Brunken, Yong S. Chu, Yasubumi Furuya, Alfred Ludwig, Mustafa Rahim, Marcus L. Young, Jan Frenzel, Gunther Eggeler, Robert Zarnetta, Burkhard Maaß, Vijay Srivastava, Sigurd Thienhaus, Ryota Takahashi, Ichiro Takeuchi, Alan Savan
Publikováno v:
Advanced Functional Materials. 20:1917-1923
Improving the functional stability of shape memory alloys (SMAs), which undergo a reversible martensitic transformation, is critical for their applications and remains a central research theme driving advances in shape memory technology. By using a t
Publikováno v:
Applied Surface Science. 255:1850-1859
Thin metallic Mn–Co films (0.3 μm thickness) were produced by RF-magnetron co-sputtering on SiO 2 /Si and on ZMG232L steel substrates. The deposition was followed by a heat treatment in order to convert the metallic coatings to (Mn,Co) 3 O 4 spine
Publikováno v:
Surface and Coatings Technology. 201:4099-4104
MoSx-based films were deposited using magnetron sputtering from a pure MoS2 target. Alloying was accomplished by “co-deposition” from separate targets onto substrates having a two-fold rotation. An additional experiment had also a Cr+-ion etch fo
Publikováno v:
Surface and Coatings Technology. 200:83-86
We have shown in an earlier work that in wood machining the degree of blunting of steel knives due to electrochemical corrosion is small as compared to their abrasive wear. However, the corrosion of steel knives may occur during the cut-offs of the m
Publikováno v:
Surface and Coatings Technology. 126:159-165
An ideal solid lubricant would have a very low friction coefficient coupled with high wear resistance. It has thus been imagined to include clusters of a lubricating material dispersed within a hard matrix. Such a composite coating might provide both
Publikováno v:
Scopus-Elsevier
An important and growing field of lubrication lies in the use of solid films, although they are in general more expensive than oils or greases, and require specialist attention both in mechanical design and in coating application techniques. In this
Autor:
H. Van Swygenhoven, Alan Savan, M. C. Simmonds, E. Pflüger, Roland Hauert, L. Knoblauch, S. Mikhailov
Publikováno v:
Surface and Coatings Technology. 105:175-183
Multilayer coatings of metallic (Au, Ni, Pb or PbO) and MoS 2 nanometer-scale layers were deposited by r.f. magnetron sputtering on 440C steel with a Cr adhesion layer. The structure, composition and thickness of the multilayers were studied by Ruthe