Mechanical and thermal behavior of cellular mullite materials |
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| Affiliation: | 1. Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research (IEK), 52425, Jülich, Germany;2. University of Twente, Faculty of Science and Technology, Inorganic Membranes, P.O. Box 217, 7500 AE, Enschede, the Netherlands;3. RWTH Aachen University, Chair of Energy Engineering Materials, 52056, Aachen, Germany;4. Jülich Aachen Research Alliance, JARA-Energy, 52425, Jülich, Germany;1. Institute of Solid State Physics, University of Latvia, Latvia;2. Center For Quantum Devices, Niels Bohr Institute, University of Copenhagen, Denmark;1. CEA, DES, ISEC, DMRC, Univ Montpellier, Marcoule, France;2. ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Bagnols-sur-Cèze, France;1. School of Materials Science and Engineering, Changwon National University, 20 Changwondaehak-ro, Changwon, Gyeongsangnam-do, 51140, Republic of Korea;2. Advanced 3D Printing Technology Development Division, Korea Atomic Energy Research Institute, 989-111, Daedeok-daero, Yuseong-gu, Daejeon, 34057, Republic of Korea;3. Department of Environmental & IT Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea;4. School of Materials Science and Engineering, Gyeongsang National University, 501 Jinju-daero, Jinju, Gyeongnam-do, 52828, Republic of Korea;1. School of Physics and Electronic Science, Hunan University of Science and Technology, Xiangtan, 411021, China;2. Science and Technology for Nation Defense on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science, National University of Defense Technology, Changsha, 410073, China;3. College of Materials Science and Engineering, Changsha University of Science and Technology, 411104, China |
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| Abstract: | In this paper, the mechanical behavior and thermal properties of cellular mullite bodies obtained by thermal direct-consolidation of foamed aqueous suspensions of mullite-bovine serum albumin (BSA) and mullite-BSA-methylcellulose (MC) were studied. The mechanical behavior of cellular mullite materials sintered at 1600 °C was evaluated by diametral compression at room temperature, 1000 °C and 1300 °C. The variation in the thermal diffusivity and thermal conductivity at temperatures up to 900 °C was determined using the laser-flash method. The results of the mechanical and thermal evaluation were analyzed based on the porosity features of the sintered materials, which was determined in turn by the starting system used for shaping the bodies. |
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| Keywords: | Cellular ceramics Mechanical properties Thermal conductivity Mullite |
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