c-axis oriented ZnO formed in a rotating magnetic field with various rotation speeds |
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| Authors: | Satoshi Tanaka Atsushi Makiya Zenji Kato Keizo Uematsu |
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| Affiliation: | 1. College of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, People’s Republic of China;2. School of Environmental and Materials Engineering, Yantai University, 32 Qingquan Road, Yantai 264005, People’s Republic of China;3. The State Key Lab. of High Performance Ceramics and Superfinemicrostructure, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, People’s Republic of China;1. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China;2. Instrumental Analysis Center of Xi’an Jiaotong University, Xi’an Jiaotong University, Xi’an 710049, China;3. Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, United States;4. State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China;5. Department of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China;1. Institute of Energy and Climate Research, Materials Synthesis and Processing, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52425 Jülich, Germany;2. Secure Materials Center, Materials and Structures Laboratory, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan;3. Otto Schott Institute of Materials Research (OSIM), Friedrich-Schiller-University of Jena, 07743 Jena, Germany;1. US Air Force Research Laboratory, Aerospace System Directorate, Power and Control Division, Electrical Systems Branch, WPAFB, OH 45433, USA;2. School of Materials Science and Engineering, Oklahoma State University, Tulsa, OK 74137, USA;3. Department of Mechanical and Materials Engineering, Wright State University, Dayton, OH 45435, USA |
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| Abstract: | A rotating magnetic field was used to fabricate c-axis oriented zinc oxide. The influence of rotating speed on orientation structure was also examined. The aligned axes had the largest diamagnetic susceptibility, which axis was difficult to align with a static magnetic field. In c-axis oriented ZnO, the degree of orientation (Lotgering factor) in the green compact ranged from 0.2 to 0.5 along c-axis. The Lotgering factor increased with rotating speed. For all samples with the rotating magnetic field, the degrees of orientation increased up to above 0.9 after sintering at 1573 K. |
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