J
Jari Koskinen
Researcher at Aalto University
Publications - 164
Citations - 4164
Jari Koskinen is an academic researcher from Aalto University. The author has contributed to research in topics: Amorphous carbon & Thin film. The author has an hindex of 32, co-authored 161 publications receiving 3587 citations. Previous affiliations of Jari Koskinen include Cornell University & University of Helsinki.
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Journal ArticleDOI
Microlubrication effect by laser-textured steel surfaces
Peter Andersson,Jari Koskinen,Simo Varjus,Yvonne B. Gerbig,Henry Haefke,S. Georgiou,B. Zhmud,W. Buss +7 more
TL;DR: In this article, the effect of microtexturing of sliding surfaces by laser ablation and polishing was investigated, based on two independent experimental approaches with oil-lubricated smooth and laser-textured steel surfaces in oscillating sliding contact with a steel ball.
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Differentiating the tribological performance of hydrogenated and hydrogen-free DLC coatings
TL;DR: In this article, the effect of graphitization on the friction performance of amorphous hydrogenated carbon films (a-C:H) and hydrogen-free tetrahedral ammorphous carbon (ta-C) was investigated.
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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.
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Tribological contact analysis of a rigid ball sliding on a hard coated surface. Part I: Modelling stresses and strains
TL;DR: In this paper, the authors analysed the stress and fracture conditions of a coated surface, that are the origin to wear, by three-dimensional finite element method (FEM) modelling on micro-level, by stress and strain computer simulations and by experimental studies with a scratch tester.
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In vitro erosion of bovine enamel caused by acidic drinks and other foodstuffs.
TL;DR: The erosive effect of some commonly used acidic drinks and milk products on a bovine tooth enamel model system is useful for comparative purposes but cannot be directly extended to the oral cavity under normal use conditions.