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Appl Opt. 2011 May 1;50(13):1941-4. doi: 10.1364/AO.50.001941.

Sample preparation method for glass welding by ultrashort laser pulses yields higher seam strength.

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1
Bayerisches Laserzentrum GmbH, Konrad-Zuse-Strasse 2-6, 91052 Erlangen, Germany. k.cvecek@blz.org

Abstract

Glass welding by ultrashort laser pulses allows joining without the need of an absorber or a preheating and postheating process. However, cracks generated during the welding process substantially impair the joining strength of the welding seams. In this paper a sample preparation method is described that prevents the formation of cracks. The measured joining strength of samples prepared by this method is substantially higher than previously reported values.

PMID:
21532677
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