Mechanical response of novel SiOC glasses to high temperature exposition |
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| Authors: | Martina Halasova Zdenek Chlup Adam Strachota Martin Cerny Ivo Dlouhy |
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| Affiliation: | 1. Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Brno, Czech Republic;2. Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno, Czech Republic;3. CEITEC IPM, Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno, Czech Republic;4. Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Brno, Czech Republic;5. Institute of Structure and Mechanics of Rock, Academy of Sciences of the Czech Republic, Brno, Czech Republic;1. Processes, Materials, and Solar Energy Laboratory (PROMES-CNRS), 7 rue du Four Solaire, Odeillo, 66120 Font-Romeu, France;2. Processes, Materials, and Solar Energy Laboratory (PROMES-CNRS), Tecnosud, Rambla de la Thermodynamique, 66100 Perpignan, France;1. DIEI, Università degli Studi di Cassino e del Lazio Meridionale, via G. Di Biasio 43, 03043 Cassino (FR), Italy;2. Université Paris-Est, LAMA, Laboratoire d''Analyse et de Mathématiques Appliquées, UMR 8050, UPEC, F-94010, Créteil, France;1. Fachbereich Material- Und Geowissenschaften, Technische Universität Darmstadt, Otto-Berndt-Str. 3, D-64287, Darmstadt, Germany;2. Fachbereich Elektrotechnik Und Informationstechnik, Technische Universität Darmstadt, Merckstr. 23, D-64283, Darmstadt, Germany |
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| Abstract: | The presented work describes mechanical properties of materials prepared by the pyrolysis of polysiloxane resins. The polymeric precursors have different chemical composition. Materials under investigation are predetermined for high temperature resistant applications usually in composite form, i.e. accompanied by some reinforcement. Instrumented hardness tests were employed for material characterisation. The Vickers hardness, Martens hardness and indentation elastic modulus were the key parameters, determined either from the standard optical technique or load–indentation depth curves. The influence of mechanical properties on the monomers ratio was established. The exposition to the temperature between 1200 °C and 1500 °C in air was applied to observe damage caused by these severe conditions. |
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