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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Dymshits, Olga
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Publications (5/5 displayed)
- 2023Local and high‐strength joining of transparent glass and glass‐ceramics by femtosecond Bessel beamcitations
- 2022Transparent materials based on semiconducting ZnO: glass-ceramics and optical ceramics doped with rare-earth and transition-metal ionscitations
- 2022ZnO – Yb$_2$O$_3$ composite optical ceramics: Synthesis, structure and spectral-luminescent propertiescitations
- 2020Microstructure, doping and optical properties of Co2+:ZnAl2O4 transparent ceramics for saturable absorbers: Effect of the ZnF2 sintering additivecitations
- 2019Structural transformations and spectroscopic properties of Ni-doped magnesium aluminosilicate glass-ceramics nucleated by a mixture of TiO2 and ZrO2 for broadband near-IR light emissioncitations
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article
Local and high‐strength joining of transparent glass and glass‐ceramics by femtosecond Bessel beam
Abstract
<jats:title>Abstract</jats:title><jats:p>The creation of robust joint between different materials with notably different coefficients of thermal expansion (CTE) is an urgent task for the development of the engineering, laser technology and aerospace industry. In this regard, femtosecond laser welding is a promising technique for efficient adhesion‐free bonding of transparent materials. This paper reports on the laser welding of laser phosphate glass (CTE = 110·10<jats:sup>−7</jats:sup> K<jats:sup>−1</jats:sup>) and spinel‐based glass‐ceramic (CTE = 50·10<jats:sup>−7</jats:sup> K<jats:sup>−1</jats:sup>) by the Bessel beam. Dependencies of weld geometric parameters on the pulse energy and scanning speed were investigated and the laser exposure conditions were optimized for durable welding. The weld joints were tested on shear strength, which was shown to be as record high as up to 147 MPa. Atomic force microscopy, Raman spectroscopy and elemental analysis were used to investigate the structure and morphology of the weld after its fracture, which revealed the laser‐induced amorphization of glass‐ceramics and the formation of strong interconnection by laser‐driven mutual diffusion of two glassy phases. The results demonstrate the prospects for using femtosecond lasers for efficient industrial welding of a wide range of materials.</jats:p><jats:p>This article is protected by copyright. All rights reserved</jats:p>