Interaction between laser beam and BaTiO3 powders in selective laser sintering treatments |
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| Authors: | Natanaël Basile Maurice Gonon Fabrice Petit Francis Cambier |
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| Affiliation: | 1. UMONS, Faculty of Engineering, Department of Material Science, 20, place du Parc, 7000 Mons, Belgium;2. Belgium Ceramic Research Centre, 4, Avenue du Gouverneur Cornez, 7000 Mons, Belgium;1. School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, PR China;2. Center of Applied Chemistry, University of Electronic Science and Technology of China, Chengdu, 610054, PR China;3. Sichuan Huason Electronics Technology Co., Ltd, Deyang, 618400, PR China;4. Shennan Circuits Co. LTD, Shenzhen, 518023, PR China;1. National Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering, Beijing 100072, China;2. School of Engineering and Technology, China University of Geosciences, Beijing 100083, China;1. College of Information Science and Technology, Dalian Maritime University, Linghai Road 1, Ganjingzi District, Dalian 116026, Liaoning, China;2. Department of Material Science and Engineering, Dalian Maritime University, Dalian 116026, Liaoning, China;1. Laser Industrial Technology Research Group, Korea Institute of Machinery and Materials (KIMM), 48, Mieumsandan 5-ro 41beon-gil, Busan 46744, Republic of Korea;2. Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), 50, UNIST-gil, Ulsan 44919, Republic of Korea;3. School of Materials Science and Engineering, Kyungpook National University (KNU), 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea;4. Busan Center, Korea Basic Science Institute (KBSI), 30, Gwahaksandan 1-ro 60beon-gil, Busan 46742, Republic of Korea;5. UNIST Central Research Facilities (UCRF), Ulsan National Institute of Science and Technology (UNIST), 50, UNIST-gil, Ulsan 44919, Republic of Korea |
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| Abstract: | The research work reported in this paper is an investigation of the behavior of barium titanate powders under selective laser irradiation. Our goal is to determine suitable conditions to sinter the powders and form dense layers usable in some electronic components. On that purpose, compacts of micro/nano BaTiO3 powder mixes are used for a parametric investigation of the laser scans parameters (power, speed, etc.) with a Nd-YVO4 laser (23 W). The microstructures obtained after laser treatments are evaluated by XRD, SEM and EDS and compared to a reference specimen manufactured in a conventional way. From this work it can be concluded that a high laser beam power is required to obtain a consolidation of the powder grains and the use of a high scan speed avoids the melting. The scanning speed also influences the final crystallographic state of BaTiO3. Optimal parameters were founded in order to form a dense and homogeneous tetragonal BaTiO3 surface. |
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