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Micro fibres containing laminates prepared by EPD: microstructure and fracture behaviour
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SYSNO ASEP 0450363 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Micro fibres containing laminates prepared by EPD: microstructure and fracture behaviour Author(s) Chlup, Zdeněk (UFM-A) RID, ORCID
Hadraba, Hynek (UFM-A) RID, ORCID
Drdlík, D. (CZ)
Dlouhý, Ivo (UFM-A) RID, ORCIDNumber of authors 4 Source Title Electrophoretic Deposition: Fundamentals and Applications V. - Zürich : Trans Tech Publications, 2015 / Boccaccini A.R. ; Dickerson J.H. ; Ferrari B. ; Biest O. ; Uchikoshi T. - ISSN 1013-9826 - ISBN 978-3-03835-497-0 Pages s. 53-57 Number of pages 5 s. Publication form Print - P Action EPD 2014 - International Conference on Electrophoretic Deposition: Fundamentals and Applications /5./ Event date 05.10.2014-10.10.2014 VEvent location Schloss Hernstein Hernstein Country AT - Austria Event type WRD Language eng - English Country CH - Switzerland Keywords EPD ; mechanical properties ; composite ; micro-fibres Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GAP108/11/1644 GA ČR - Czech Science Foundation (CSF) ED1.1.00/02.0068 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFM-A - RVO:68081723 EID SCOPUS 84944340039 DOI 10.4028/www.scientific.net/KEM.654.53 Annotation Recently it was possible to prepare tailored laminates with perfect and strong interface of layers with precise thickness management. Tailoring of ceramic laminates to obtain optimal mechanical properties with enhanced fracture resistance is possible when predictions based on numerical calculations are employed. Extraordinary mechanical properties were achieved via high internal stresses development during material processing. The aim of this investigation can be seen in two directions. The enhanced crack free green bodies through incorporating small volume fraction of micro-fibres to the powders were prepared. Additionally, control of the crack propagation by incorporated directionally oriented micro-fibres both in the volume and in individual layers. In this contribution both alumina and zirconia micro-fibres were used to help eliminate drying defects in the green body stage before sintering. The co-deposition of ceramic micro-fibres and powder led to the preparation of microstructures having unique orthogonal fracture properties. Developed laminate with thin layers created by zirconia micro-fibres in the alumina matrix seems to be the most promising. This type of material exhibited potential of the crack trapping and deflection even when very small amount of micro-fibres was used. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2016
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