Assembly process and optical performances for a golden laser spark-plug device
| Autor: | Axel Bodemann, Catalina-Alice Brandus, Christoph Damm, Ramona Eberhardt, Nicolae-Tiberius Vasile, Erik Beckert, Oana Valeria Grigore, Andreas Tünnermann, Nicolaie Pavel, Pol Ribes-Pleguezuelo, Gabriela Croitoru |
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| Přispěvatelé: | Publica |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry Laser ignition General Engineering Laser beam welding 02 engineering and technology Laser 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Ignition system 020210 optoelectronics & photonics law Soldering 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Sapphire Optoelectronics Bumping Spark plug business |
| Popis: | The low-stress Solderjet Bumping technique was employed to assemble the optical components of an increased-robustness laser spark-plug ignition device using the low melting alloys 96.5Sn3Ag0.5Cu and 80Au20Sn. A finite-element-method analysis, optical simulations, and a soldering parametrization test were performed to prove that different optical materials (sapphire, ECO-550, D-ZLaF52LA, TAC4, and N-SF11 glasses) could be fastened to the stainless steel body. The assembled spark-plug device featured a passively Q-switched Nd : YAG/Cr4 + : YAG composite ceramic medium and delivered laser pulses with energy variable between 2.40 and 4.70 mJ, with 0.8 ns duration, suitable for inducing air breakdown phenomenon and engine combustion. |
| Databáze: | OpenAIRE |
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