Processing HIP-zirconia with ultra-short laser pulses

Kristian Werelius; Paul Weigl; Holger Lubatschowski

doi:10.1117/12.540505

18 November 2003 Processing HIP-zirconia with ultra-short laser pulses

Kristian Werelius, Paul Weigl, Holger Lubatschowski

Proceedings Volume 5063, Fourth International Symposium on Laser Precision Microfabrication; (2003) https://doi.org/10.1117/12.540505
Event: Fourth International Symposium on Laser Precision Microfabrication, 2003, Munich, Germany

Abstract

Creating individual complex three dimensional structures in HIP-zirconia by conventional mechanical machining, e.g. milling, is time consuming and subject to significant loss in bending strength due to microcracking during the milling process. Utilizing ultra-short laser pulses, individual complex three dimensional microstructures can be created very precisely without significant damage to the structure. This advantage is used to process HIP-zirconia in order to create dental restorations. To evaluate efficiency and quality, different laser parameters such as pulse duration, pulse energy and ablation strategies were studied. The maximum ablation rate was found at 400 fs.

Citation Download Citation

Kristian Werelius, Paul Weigl, and Holger Lubatschowski "Processing HIP-zirconia with ultra-short laser pulses", Proc. SPIE 5063, Fourth International Symposium on Laser Precision Microfabrication, (18 November 2003); https://doi.org/10.1117/12.540505

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