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Applied Physics A

, 122:131 | Cite as

Fracture toughness of ultrashort pulse-bonded fused silica

  • S. RichterEmail author
  • F. Naumann
  • F. Zimmermann
  • A. Tünnermann
  • S. Nolte
Invited Paper
  • 226 Downloads
Part of the following topical collections:
  1. Emerging trends in photo-excitations and promising new laser ablation technologies

Abstract

We determined the bond interface strength of ultrashort pulse laser-welded fused silica for different processing parameters. To this end, we used a high repetition rate ultrashort pulse laser system to inscribe parallel welding lines with a specific V-shaped design into optically contacted fused silica samples. Afterward, we applied a micro-chevron test to measure the fracture toughness and surface energy of the laser-inscribed welding seams. We analyzed the influence of different processing parameters such as laser repetition rate and line separation on the fracture toughness and fracture surface energy. Welding the entire surface a fracture toughness of \(0.71\,\hbox {MPa}\,\hbox {m}^{1/2}\), about 90 % of the pristine bulk material \(({\approx } 0.8\,\hbox {MPa}\,\hbox {m}^{1/2})\), is obtained.

Keywords

Fracture Toughness Repetition Rate Weibull Distribution Failure Probability Chevron 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

Financial support by the German Federal Ministry for Economic Affairs and Energy (BMWi) within the framework of the IGF Project 18630 BR is gratefully acknowledged.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • S. Richter
    • 1
    • 2
    Email author
  • F. Naumann
    • 3
  • F. Zimmermann
    • 1
  • A. Tünnermann
    • 1
    • 4
  • S. Nolte
    • 1
    • 4
  1. 1.Institute of Applied Physics, Abbe Center of PhotonicsFriedrich-Schiller-Universität JenaJenaGermany
  2. 2.TRUMPF Lasertechnik GmbHDitzingenGermany
  3. 3.Fraunhofer Institute for Microstructure and Systems IMWSHalle (Saale)Germany
  4. 4.Fraunhofer Institute for Applied Optics and Precision EngineeringJenaGermany

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