Absorption energy by ceramic-elastomer composites working under compression load
Łukasz Wasilewski, Katarzyna Konopka, Anna Boczkowska, Kamil Babski, Mikołaj Szafran 1-4 Politechnika Warszawska, Wydział Inżynierii Materiałowej, ul. Wołoska 141, 02-507 Warszawa, Poland 5 Politechnika Warszawska, Wydział Chemiczny, ul. Noakowskiego 3, 00-664 Warszawa, Poland
Quarterly No. 4, 2007 pages 190-194
DOI:
keywords: composites, porous ceramics, elastomer, infiltration
abstract In the present paper the ceramic-elastomer composites obtained via infiltration of porous SiO2 ceramics by urea-urethane elastomer were studied. Such composites have potential for being new class of construction and functional materials. As a result of process of infiltration microstructure with percolation of ceramic and polymeric phase is obtained. Due to joining ceramic with elastomer the composites with increased toughness are achieved. Such composites are distinguish by the high compression strength and high value of absorption energy and ability to achieve large deformation. These abilities of composites give them possibility to work as a shock absorber. Due to the presence of the elastomer the composites do not undergo sudden failure and the composites are able to work under third cycle of compression loading, however, the value of absorption energy is lower and the σ-ε cure is similar as for elastomer. For higher value of deformation speed the higher value of energy absorption was noticed.