A new hybrid approach consists to use the advantages of both systems namely the high geometric aspects of the electrodes of the ultracapacitor and the high dielectric strength of polymer materials used in dielectric capacitors. The surface roughness of the electrodes of the ultracapacitor is manufactured with nano-porous materials; activated carbon and carbon nanotubes (CNTs). Many compositions...

We propose a type of thermal interface materials incorporating insulating nanowires with partially metallic coating in polymer matrix. Large conductivity can be obtained due to percolation while the electrical insulation is maintained by controlling CM?<?ce and ?>?cth, where ? volume fraction fillers, CM fraction, ?ce ?cth are thresholds, respectively. The such composite further r...

Abstract Compact sensing methods are desirable for ionic polymer–metal composite (IPMC) actuators in microrobotic and biomedical applications. In this paper a novel sensing scheme for IPMC actuators is proposed by bonding an IPMC and a PVDF (polyvinylidene fluoride) thin film with an insulating layer in between. The insulating layer thickness is properly designed to minimize the stiffness of th...

This review covers a spectrum of optoelectronic properties of and uses for semi-insulating semiconductor heterostructures and thin films, including epilayers and quantum wells. Compensation by doping, implantation, and nonstoichiometric growth are described in terms of the properties of point defects and Fermi level stabilization and pinning. The principal optical and optoelectronic properties ...

The flexural strength comparasion of epoxy matrix composite with diferent reinforcement . Composite is a combination two or more materials that have good physical properties and mechanical properties. Reinforcement commonly used in polymer composites are fibers strips material, bamboo fiber,carbon, PALF malva fiber as resin matrix. research phase began finding the journal which explain about us...