Effects of heat treatment on the mechanical properties at elevated temperatures of plain-woven SiC/SiC composites |
| |
| Affiliation: | 1. Key Laboratory of Aero-Engine Thermal Environment and Structure, Ministry of Industry and Information Technology, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, PR China;2. College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, PR China;3. Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, PR China;4. State Key Laboratory of Mechanics and Control Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, PR China;5. State Key Laboratory of High Performance Ceramics & Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China;1. Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;2. Nanjing Forestry University, College of Chemical Engineering, Nanjing 210016, PR China;3. Key Laboratory of Aero-engine Thermal Environment and Structure, Ministry of Industry and Information Technology, Nanjing 210016, PR China;4. State Key Laboratory of Mechanics and Control Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China;1. Structural Analytics, Inc, Carlsbad, CA, United States;2. Raytheon Technologies Research Center, East Hartford, CT, United States;3. Cornell University, Ithaca, NY, United States;1. School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;2. Department of Civil and Structural Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, United Kingdom;3. Aero Engine Corporation of China Commercial Aircraft Engine Co Ltd, Shanghai 201180, China;4. Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an 710072, China;1. Key Laboratory of Aeroengine Thermal Environment and Structure, Ministry of Industry and Information Technology, Nanjing, 210016, PR China;2. Nanjing Forestry University, College of Chemical Engineering, Nanjing, 210016, PR China;3. Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, PR China;4. State Key Laboratory of Mechanics and Control Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, PR China;5. AECC Sichuan Gas Turbine Establishment, Chengdu, 610500, People''s Republic of China;6. Representative Office of No. 420 Factory, The Chinese People''s Liberation Army, Chengdu, 610503, PR China |
| |
| Abstract: | The effects of heat treatment on the mechanical properties of plain-woven SiC/SiC composites at 927 °C and 1200 °C in argon were evaluated through tensile tests at room temperature and at elevated temperature on the as-received and heat-treated plain-woven SiC/SiC composites, respectively. Heat treatment can improve the mechanical properties of composites at room temperature due to the release of thermal residual stress. Although heat treatment can damage the fiber, the effect of this damage on the mechanical properties of composites is generally less than the effect of thermal residual stress. Heat treatment will graphitize the pyrolytic carbon interface and reduce its shear strength. Testing temperature will affect the expansion or contraction of the components in the composites, thereby changing the stress state of the components. This study can provide guidance for the optimization of processing of ceramic matrix composites and the structural design in high-temperature environments. |
| |
| Keywords: | Ceramic matrix composites (CMCs) Heat treatment Elevated temperature Mechanical behavior |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
