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| Abstract No.: |
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Scheduled at:
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Wednesday, March 28, 2012, SuperC, Hall Ford 3:15 PM
Innovations in EBW
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| Title: |
Electron beam structurisation in mikro range - potential for improved bone ingrowths behavior
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| Authors: |
Christian Otten* / Institut für Schweißtechnik und Fügetechnik der RWTH Aachen, Deutschland
Uwe Reisgen / RWTH Aachen University, ISF Welding and Joining Institute, Germany
Horst Fischer/ RWTH Aachen University, Lehr- und Forschungsgebiets Zahnärztliche Werkstoffkunde und Biomaterialforschung (ZWBF), Germany
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| Abstract: |
Within the scope of a path finder project which is carried out by the RWTH Aachen University it is aimed for the development of novel structures for improved cell growth on titanium alloy surfaces in interdisciplinary cooperation between the Welding and Joining Institute (Institut für Schweißtechnik und Fügetechnik) and the Department of Dental Materials and Biomaterials Research (Lehr- und Forschungsgebiet Zahnärztliche Werkstoffkunde und Biomaterialforschung). The texturisation of the titanium platelets which have a diameter of Ø10 mm has been carried out via a scanning electron microscope (SEM) which had been modified for welding purposes. Preliminary tests have shown that the increased formation of adhesive proteins occurs when the structure increases by 20 µm. The optimum setting parameters have been identified via parameter studies and their influence on the structure formation has been shown. Topography measurements with a confocal microscope (topography surface measurement system) allowed to verify the height. Improved visualisation provided further the representation of the material transport which is typical of this method. Hardness measurements showed that the structures have the same Vickers hardness values as the unmolten base material
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