Refractory interphase and its role on the mechanical properties of boron containing nacre-like ceramic |
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| Affiliation: | 1. Universidade Federal de São Carlos, São Paulo, Brazil;2. ETH Zürich, Zürich, Switzerland;3. BASF Construction Solutions GmbH, Trostberg, Germany;4. Center for Advanced Structural Ceramics, Department of Materials, Imperial College London, Royal School of Mines, Exhibition Road, SW7 2AZ London, UK;1. The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China;2. National-provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology, Wuhan 430081, China;3. Chair of Ceramics, Montanuniversitaet, Peter-Tunner Strasse 5, 8700 Leoben, Austria;1. Department of Materials Science & Engineering, University of California, Berkeley, CA 94720, USA;2. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA;3. School of Mechanical and Manufacturing Engineering, UNSW, Sydney NSW 2052, Australia;4. Department of Materials Science & Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USA;1. Department of Civil Engineering, University of Calabria, Rende, Italy;2. Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI, USA |
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| Abstract: | Bioinspired ceramics based on the nacreous part of the mother-of-pearl microstructure have been developed in recent years to produce materials with high mechanical performance. Although significant advances in terms of simplicity and scalability of the synthesis process have been achieved, the reasons behind the improvement of the mechanical properties remains to be pinpointed. Recently, the development of boron containing nacre-like refractories have offered new insights into the relationship between the interphase composition and the performance increase of nacre-like materials. Based on those achievements, this paper presents a multiscale analysis to evaluate the role of the refractory interphase on the mechanical properties of the nacre-like refractories. The results demonstrate the presence of increased residual stresses and adhesion between the alumina platelets induced by the aluminium borate second phase when compared to composition without secondary phase. These new findings provide additional information towards a better design and fabrication of high-performance nacre-like refractories. |
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| Keywords: | Bio-inspired Nacre-like refractories Mechanical properties Multiscale analysis Toughness |
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