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Novel phenolic impregnated 3-D Fine-woven pierced carbon fabric composites: Microstructure and ablation behavior
Authors:Changqing Hong  Jiecai Han  Xinghong Zhang  Hui David  Weijie Li  Yaxi Chen  Shanyi Du
Affiliation:1. Key Laboratory of Science and Technology for Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150001, PR China;2. Dept. of Mechanical Engineering, University of New Orleans, New Orleans, LA 70124, United States;3. Bejing Institute of Spacecraft System Engineering, China Academy of Space Technology, Beijing 100094, PR China;1. Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, PR China;2. Beijing Institute of Space Long March Vehicle, Beijing 100076, PR China;1. AML, Department of Engineering Mechanics, School of Aerospace Engineering, Tsinghua University, Beijing 100084, PR China;2. Institute of Advanced Structure Technology, Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Beijing Institute of Technology, Beijing 100081, PR China;3. Science and Technology on Advanced Composites in Special Environment Laboratory, Harbin Institute of Technology, Harbin 150001, PR China;4. College of Engineering, Peking University, Beijing 100871, PR China;5. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, PR China;1. School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, 151-742, South Korea;2. Department of Mechanical Engineering, Gachon University, Seongnam-si, Gyeonggi-do, 461-701, South Korea;1. Composite Research Center, Department of Materials Science and Engineering, Institute of Space Technology, Islamabad, Pakistan;2. Center of Excellence, National Engineering and Scientific Commission, Islamabad, Pakistan;1. von Karman Institute for Fluid Dynamics, 1640 Rhode-St-Genese, Belgium;2. Thermo and Fluid dynamics (FLOW) Faculty of Engineering, Vrije Universiteit Brussel (VUB), 1050 Brussels, Belgium;3. Science and Technology Corporation (STC) at NASA Ames Research Center, Moffett Field, CA 94035, USA;4. University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA;5. Combustion and robust optimization (BURN), Vrije Universiteit Brussel (VUB) and Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium;6. University of Bordeaux, 33405 Talence, France;7. Analytical Mechanics Associates (AMA) at NASA Ames Research Center, CA 94035 Moffett Field, USA;8. NASA Ames Research Center, Moffett Field, CA 94035, USA
Abstract:The processing, microstructure and ablative properties of novel phenolic impregnated 3-D Fine-woven pierced carbon fabric ablator (PICA) with different bulk density were investigated. The density of PICA material ranges from 0.352 to 0.701 g/cm3 that having uniform resin distribution within the fibrous substrate. An oxyacetylene torch was used to explore the ablative characteristics in terms of linear/mass ablation rate and microscopic pattern of ablation. Surface and in-depth temperatures during ablation were measured by using optical pyrometers and thermocouples. The experimental results showed that the linear ablation rate varied between 0.019 and 0.036 mm/s and the mass ablation rate increased from 0.045 to 0.061 g/s for the tested PICA composites. It suggests that the PICA composites with lower density may significantly contribute to improving the thermal insulation and ablative properties.
Keywords:
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