Wetting and interfacial reactions in liquid Au-Ti alloys / ZrO2 system |
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| Affiliation: | 1. Univ. Grenoble Alpes, CEA, Liten, DTCH, 38000 Grenoble, France;2. Univ. Grenoble Alpes, CNRS, Grenoble INP, SIMAP, F-38000 Grenoble, France;3. Univ Paris Est Creteil, CNRS, ICMPE, UMR 7182, 2 rue Henri Dunant, 94320 Thiais, France;1. Laboratory for Computational Physics, Institute for Computational Science and Artificial Intelligence, Van Lang University, Ho Chi Minh City, VietNam;2. Faculty of Mechanical - Electrical and Computer Engineering, School of Technology, Van Lang University, Ho Chi Minh City, VietNam;3. Faculty of Engineering, Vietnamese-German University, Binh Duong, VietNam;4. International Training Institute for Materials Science, Hanoi University of Science and Technology, Ha Noi, VietNam;1. State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology, No.287 Langongping Road, Lanzhou 730050, PR China;2. Key Laboratory of Automobile Materials, Department of Materials Science and Engineering, Jilin University, No. 5988 Renmin Street, Changchun 130025, PR China;3. College of Technology and Engineering, Lanzhou University of Technology, No.287 Langongping Road, Lanzhou 730050, PR China;1. Department of Chemistry & Nano Science, Ewha Womans University, Seoul, 120-750, Republic of Korea;2. National Institute for Nanomaterials Technology (NINT), Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea;3. Wellness Convergence Research Center, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, 711-873, Republic of Korea;4. School of Mechanical and Advanced Materials Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 689-798, Republic of Korea;5. LG Chem Research Park, Daejeon, 305-738, Republic of Korea;1. Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, PR China;2. Beijing Mechanical Equipment Institute, Beijing 100039, PR China;3. College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, No.29 Jiangjun Ave., Nanjing 211106, PR China;4. School of Civil Engineering, Beijing Jiaotong University, Beijing, 100044, China;1. Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 16628 Prague 6, Czech Republic;2. Institute of Ceramics, Refractories and Composite Materials, TU Bergakademie Freiberg, Agricolastr. 17, 09599 Freiberg, Germany;1. College of Materials and Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials, Xiamen University, Xiamen 361005, PR China;2. Xiamen Key Laboratory of High-Performance Metals and Materials, Xiamen University, Xiamen 361005, PR China;3. Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, PR China;4. School of Materials Science and Engineering, and Institute of Materials Genome & Big Data, Harbin Institute of Technology, Shenzhen 518055, PR China |
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| Abstract: | This study investigates wetting of zirconia by Au-Ti alloys containing 0.6–4 wt% Ti in view of brazing zirconia to titanium with pure gold for biomedical applications. Experiments were carried out using sessile and dispensed drop methods under high vacuum at 1040–1250 °C. Bulk drops and Au-Ti / ZrO2 interfaces were characterized by SEM and FEG-SEM with EDXS analysis. While Au does not wet zirconia, the contact angle θ being ～ 120°, the addition of Ti in Au leads to a significant improvement of wetting due to the formation of a wettable oxide layer at Au-Ti / ZrO2 interface. The nature of this oxide was determined by X-ray diffraction of the reaction layer after the detachment of the droplet from the substrate or after the dissolution of the droplet. The mechanism of formation and growth of the oxide layer and its growth kinetics were determined based on fine analysis of the Au-Ti / oxide layer / ZrO2 interfacial system. |
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| Keywords: | Wetting Interfacial reactivity Zirconia Au-Ti alloys Brazing |
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