Arrowhead-like diamond crystals formed by hot-filament chemical vapor deposition |
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| Affiliation: | 1. School of Materials Science and Engineering, East China JiaoTong University, Nanchang 330013, People''s Republic of China;2. Research Center of Material and Chemical Engineering, School of Material and Chemical Engineering, Tongren University, Tongren 554300, People''s Republic of China;3. Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, People''s Republic of China;4. College of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, People''s Republic of China;1. Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, PR China;2. Corrosion and Protection Center, Key Laboratory for Environmental Fracture (MOE), University of Science and Technology Beijing, Beijing 100083, PR China;3. Center for Advancing Materials Performance from the Nanoscale (CAMP-Nano), State Key Laboratory for Mechanical Behavior of Materials, Xi''an Jiaotong University, Xi''an, Shaanxi 710049, PR China;4. Department of Mechanical Engineering, University of South Florida, Tampa 33620, USA;5. National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan, ROC |
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| Abstract: | Arrowhead-like diamond crystals have been formed by using a simple method of hot-filament-assisted chemical vapor deposition. These are contact twins with {111} as the twin plane, of which each individual is composed of {100}, {110} and {111} faces. These twins flatten along {110} face and elongate parallel to {111} contact plane. The flattened {110} face consists of many {110} terraces sided by 〈110〉 and 〈112〉 steps. So the twinned crystal looks like an arrowhead. These twins are formed just underneath the uppermost substrate temperature for diamond growth. |
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