S
Simo-Pekka Hannula
Researcher at Aalto University
Publications - 229
Citations - 4269
Simo-Pekka Hannula is an academic researcher from Aalto University. The author has contributed to research in topics: Magnetic shape-memory alloy & Martensite. The author has an hindex of 34, co-authored 227 publications receiving 3742 citations. Previous affiliations of Simo-Pekka Hannula include Cornell University & VTT Technical Research Centre of Finland.
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Journal ArticleDOI
Corrosion performance of some titanium-based hard coatings
B. Matthes,Erhard Broszeit,Jari Aromaa,Helena Ronkainen,Simo-Pekka Hannula,Adrian Leyland,Allan Matthews +6 more
TL;DR: In this paper, the authors present corrosion data for titanium-based hard coatings such as TiN, (Ti,Al)N, Ti(B, N) and TiB2 and also for multilayered structures where additional aluminium-based insulating surface layers (AlN and Al2O3) were deposited.
Journal ArticleDOI
Optimization and Characterization of High Velocity Oxy-fuel Sprayed Coatings: Techniques, Materials, and Applications
TL;DR: In this article, the main differences in spray conditions in terms of particle kinetics and thermal energy are rationalized and methods and tools for controlling the spray process are presented as well as their use in optimizing the coating process.
Journal ArticleDOI
Aluminum oxide from trimethylaluminum and water by atomic layer deposition: The temperature dependence of residual stress, elastic modulus, hardness and adhesion
Oili Ylivaara,Xuwen Liu,Lauri Kilpi,Jussi Lyytinen,Dieter Schneider,Mikko Laitinen,Jaakko Julin,Saima Ali,Sakari Sintonen,Maria Berdova,Eero Haimi,Timo Sajavaara,Helena Ronkainen,Harri Lipsanen,Jari Koskinen,Simo-Pekka Hannula,Riikka L. Puurunen +16 more
TL;DR: In this paper, a comprehensive characterization of the stress, elastic modulus, hardness and adhesion of ALD aluminum oxide (Al2O3) films grown at 110-300°C from trimethylaluminum and water is presented.
Journal ArticleDOI
Recent breakthrough development of the magnetic shape memory effect in Ni-Mn-Ga alloys
TL;DR: Magnetic shape memory (MSM) alloys or ferromagnetic shape memory alloy (FSMA) materials discovered by Ullakko et al. as mentioned in this paper have received increasing interest, since they can produce a large strain with rather high frequencies without a change in the external temperature.
Book ChapterDOI
Giant Magnetostrictive Materials
TL;DR: A particular class of magnetostrictive materials is called magnetic shape memory (MSM) alloys or ferromagnetic shape memory alloy (FSMA) materials, which can change their shape remarkably when subjected to magnetic field as discussed by the authors.