Different equations of state (EOS) have been used to study pressure as a function of volume compressions at a given temperature. The critical test of EOS’ for solids under low compressions (<10GPa) by evaluating the pressure-volume derivative properties viz., isothermal bulk modulus and its pressure derivative calculated for BiFeO3. The elastic moduli such as bulk modulus, shear modulus, Young’...

This research describes the effects of shear flow-induced alignment of dispersed single-walled carbon nanotubes in viscous polymer solutions and the application of this alignment strategy to produce epoxy-based composites with superior mechanical properties. Previously, it was shown that the use of an anionic surfactant (i.e. sodium dodecylbenzene sulfonate, NaDDBS) in conjunction with a weakly...

Different software packages are available commercially which can be applied to oscillatory shear data to recover an estimate of the relaxation spectrum of the viscoelastic material tested. The underlying algorithms, based on some form of regularization, are indirect and technically involved. Davies and Anderssen @J. Non-Newtonian Fluid Mech. 73, 163–179 ~1997!# have derived exact sampling local...

Hydrophilic fumed silica (FS) and precipitated silica (PS) powders were suspended in mineral oil; increasing the silica volume fraction (φ in the suspension led to the formation of sol, pre-gel, and gel states. Gelation took place at lower φ values in the FS than the PS suspension because of the lower silanol density on the FS surface. The shear stresses and dynamic moduli of the FS and PS susp...

[1] The single-crystal elastic properties of high-spin (Mg0.94Fe0.06)O ferropericlase were measured by Brillouin spectroscopy on a sample compressed to 20 GPa with diamond anvil cells using methanol-ethanol-water as a pressure-transmitting medium. At room pressure, the adiabatic bulk (K0S) and shear (m0S) moduli are K0S = 163 ± 3 GPa and m0S = 121 ± 2 GPa, in excellent agreement with ultrasonic...

A complete investigation on the free vibration of bilayer graphene nanoribbons (BLGNRs) mod-eled as sandwich beams taking into account tensile-compressive and shear effects of van der Waals (vdWs) interactions between adjacent graphene nanoribbons (GNRs) as well as between GNRs and polymer matrix is performed in this research. In this modeling, nanoribbon layers play role of sandwich beam layer...