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Talks and Poster Presentations (without Proceedings-Entry):

E. Aschauer, S. Sackl, C.M. Koller, T. Schachinger, M. Arndt, P. Polcik, H. Riedl, P.H. Mayrhofer:
"Atomic scale investigations of thermally treated MoSiB/TiAlN nano-multilayers";
Talk: EMRS Spring Meeting 2017, Straßburg; 2017-05-22 - 2017-05-26.



English abstract:
To face the challenges of modern manufacturing techniques and advanced technologies, material design in the atomic scale range is imperative. 2D-nano composite coatings deposited by PVD are a highly effective way to increase the limited properties of bulk materials, such as thermal stability, oxidation or wear resistance. PVD arises the possibility to combine coating materials with contrary properties such as hardness and toughness, or thermal stability with self-lubrication to gain revolutionary characteristics.
Our newly developed Ti-Al-N/Mo-Si-B multilayer thin films provide the possibilities of outstanding mechanical properties combined with superior oxidation behaviour, especially in the high temperature regime. However, to gain a deeper understanding on the thermo-mechanical properties and the reaction kinetics during thermal exposure, a set of high resolution techniques, including high resolution transmission electron microscopy, electron energy loss and energy-dispersive X-ray spectroscopy, as well as selected area diffraction, compared to atom probe tomography are used for an in-depth analysis.
Therefore, a comprehensive analysis of our nano-laminated coatings in the as deposited state and after thermal treatments in vacuum and air up to 1600 °C was carried out. The correlation between the hardness, morphology, chemical composition, as well as structure allocates a distinct knowledge on the diffusion process and phase transformations at elevated temperatures.


Related Projects:
Project Head Paul Heinz Mayrhofer:
Christian Doppler Labors für anwendungsorientierte Schichtentwicklung


Created from the Publication Database of the Vienna University of Technology.