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Radiation degradation in the mechanical properties of Polyetheretherketone–alumina composites
Authors:Falix Lawrence  C Mallika  U Kamachi Mudali  R Natarajan  D Ponraju  SK Seshadri  TS Sampath Kumar
Affiliation:1. Reprocessing Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India;2. Safety Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India;3. Department of Metallurgy and Materials Engineering, Indian Institute of Technology Madras, Chennai 600 036, India;1. College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, 24 Yihuan Road, Nanyiduan, Chengdu, Sichuan 610065, People’s Republic of China;2. Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, Ontario M5S 3G8, Canada;1. Department of Applied Radiation and Isotopes, Faculty of Science, Kasetsart University, Bangkok, Thailand;2. Polymer Processing and Flow (P-PROF) Research Group, Division of Materials Technology, School of Energy, Environment and Materials, King Mongkut''s University of Technology Thonburi, Bangkok, Thailand;3. Specialized Center of Rubber and Polymer Materials in Agriculture and Industry (RPM), Faculty of Science, Kasetsart University, Bangkok, Thailand;1. Microcellular Plastic Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, Ontario M5S 3G8, Canada;2. Smart and Adaptive Polymers & Composites Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, Ontario M5S 3G8, Canada
Abstract:Polyetheretherketone (PEEK) is extensively employed in corrosive and radiation environments. To improve the radiation tolerance of PEEK in the presence of high energetic radiation, PEEK was reinforced with micron sized alumina powder (5–25% by weight) and PEEK–alumina composite sheets fabricated were irradiated to 10 MGy. Mechanical properties of the irradiated composites revealed significant reduction in the degradation of PEEK with addition of alumina as the polymer reinforced with ceramic additives is expected to increase the interface area of the constituents in the system resulting in an improvement in the performance of the reinforced material.
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