Acoustic and elastic properties of silicone oil under high pressure

Abstract

Brillouin scattering spectra of three silicone oils with different viscosity, including two polydimethylsiloxanes (PDMS) and one polyphenylmethylsiloxane (PPMS), have been studied under high pressure.

Brillouin Biosensing of Viscoelasticity Across Phase Transitions in Ovine Cornea

“…The Brillouin spectra collected at room temperature for corneal tissue and silicone oil, as shown in Figure 1, exhibit similar peak shifts that are reflective of the intrinsic mechanical properties of each material. The corneal tissue presents peaks approximately at ±8.0 GHz, consistent with its known biomechanical properties, while silicone oil demonstrates a distinct linewidth pattern which is consistent with [38], evidencing its unique viscous characteristics. During the thermal treatment, the sample was set on a temperature-controlled plate, which was thermally linked to a Peltier device via silver paste (Linkam PE120, Linkam Scientific Instruments, UK).…”

Insights into Polymorphism of Lithium Manganese Oxide, Li0.95Mn2.05O4: A Comprehensive Survey of the High-Pressure Properties

“…Such an anomalous elastic behavior has been observed in many materials, and it has been widely explained by hardening of the pressure-transmitting medium after solidification and high shear stress . Moreover, in silicone oil (PTM), interactions between the long-chain molecules introduce the nontrivial elastic properties and fluctuations in the pressure transmittance . The elastic behavior and the structural evolution of lithium manganese oxide compressed in the pressure-transmitting fluid are drastically affected by the potential crystal–fluid interaction in response to the applied pressure.…”

“…35 Moreover, in silicone oil (PTM), interactions between the long-chain molecules introduce the nontrivial elastic properties and fluctuations in the pressure transmittance. 36 The elastic behavior and the structural evolution of lithium manganese oxide compressed in the pressure-transmitting fluid are drastically affected by the potential crystal−fluid interaction in response to the applied pressure.…”

In situ determination of mechanical properties for poly(ether ether ketone) film under extreme conditions

“…Silicon oil was utilized as the pressure transmission medium in DAC to minimize the pressure gradient. [21][22][23] A small annealed ruby chip was loaded into the chamber for the pressure calibration. Brillouin scattering experiments were performed in symmetric platelet scattering geometry.…”