Anodic oxidation of pitch-precursor carbon fibres in ammonium sulphate solutions: the effect of fibre surface treatment on composite mechanical properties |
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| Affiliation: | 1. Department of Mechanical Engineering, University of Wyoming, Laramie, WY, USA;2. Department of Chemistry at the Composites Materials Research Group, University of Wyoming, Laramie, WY, USA;1. Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran;2. Department of Environmental Health Engineering, School of Public Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran;3. Division of Food Safety, Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran;1. Department of Industrial Engineering, DIIn, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy;2. Department of Information Engineering, Electrical Engineering and Applied Mathematics, DIEM, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy;3. CIRA Italian Aerospace Research Centre, Advanced Materials and Technologies Lab, Via Maiorise, 81043 Capua, CE, Italy;4. ALENIA Aeronautica SpA, Viale dell''Aeronautica, 80038 Pomigliano D''Arco, NA, Italy;1. Department of Chemical and Materials Engineering, National Central University, No.300, Zhongda Road, Zhongli District, Taoyuan 32001, Taiwan;2. Department of Electrical Engineering, National University of Tainan, No.33, Sec. 2, Shulin St., West Central District, Tainan 700, Taiwan;1. State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China;2. College of Resources and Environmental Science, South-central University for Nationalities, Wuhan 430074, PR China |
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| Abstract: | Tonen HM pitch-based carbon fibres were electrochemically treated in solutions of ammonium sulphate using a pilot plant surface treatment apparatus. Embedded single fibre and short beam shear specimens prepared with these treated fibres exhibited strengths over 300% greater than those made with untreated fibres. The surface treatment did not, however, result in improvements in the longitudinal compressive strength. This suggests that the compressive strength is not limited by the shear strength of the fibre/matrix interface. |
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