The primary performance and reliability metrics considered are the actuation voltage, speed of actuation, stroke (or displacement), actuation force, stored energy, electrical resistivity, mechanical quality factor, and resistance to fracture, fatigue, shock, and stiction.
Previous researches around the world postulated that concrete from geopolymer binder exhibited superior engineering, thermal and durability properties than ordinary Portland cement (OPC) concrete, such as higher mechanical strengths, higher resistivity to sulphate and acid attacks and higher thermal resistivity.
The volume resistivity, mechanical and thermal properties of the irradiated EVA composites are also evidently improved at appropriate irradiation dose as compared with those of un-irradiated ones.
Film properties such as mechanical stability, surface resistivity, surface conductivity, surface morphology, thickness and the metal content were correlated to the composition of the films.
A model accounting for both changes in the interface structure between dispersed ZnO particles and the Au matrix captures the changes in mechanical and electrical resistivity.
During the mechanical stress, the resistivity decreases by a very small value (±0.1%).
Ferrites are preferred for their high permeability in the radio frequency region, high electrical resistivity, mechanical hardness, chemical stability, etc. (Zheng et al. 1998).
The relationship of the composite strip between piezo-resistivity and mechanical strain is investigated by a universal strain stress tensiometer through resistivity monitoring.
The advantages of alumina include high resistivity, good mechanical and dielectric strength, excellent thermal and corrosion stability, and the ability to provide hermetic seals.
