Mechanical Behavior of Alumina based Reticulated
Foams Encapsulated and Infiltrated with Polymer
under Quasistatic and Dynamic Conditions |
Kanike Rajesh,1 Vattaparambil Shipin,2 Papiya Biswas,2, * Asit Kumar Khanra1 and Roy Johnson2
Pages : 8-11
DOI : 10.1080/0371750X.2018.1428117 |
Abstract |
Cellular ceramic structures, due to their unique combination of thermal, structural
and mechanical properties, are widely explored for the wide range of thermostructural
applications. However, the ceramic based structures have not been
well explored for energy absorption properties due to their inherent brittleness.
In the present study, alumina based ceramic foams were fabricated by polymeric
sponge replication process and further these foams were encapsulated and
infiltrated respectively in epoxy resin. All the three foams – bare, encapsulated
and infiltrated were evaluated comparatively under quasistatic compression and
dynamic impact conditions. The study revealed that the energy absorption
properties can be significantly enhanced through encapsulation and infiltration
of bare foam with epoxy resin. Extent of enhancement in energy absorption in
case of infiltration was superior in comparison to encapsulation in both static
and dynamic test conditions. The study demonstrated the possibility of exploring
the potential of encapsulated and infiltrated ceramic foams in various shock
attenuating applications.
[Keywords: Alumina foams, Infiltration, Encapsulation, Mechanical properties,
Quasistatic compression, Charpy impact test] |
Full text : Subscribe to Download Full Text |
[Go Back] |
|