Viscosity measurements in pulsed magnetic fields by using a quartz-crystal microbalance

Abstract

Viscosity measurements in combination with pulsed magnetic fields are developed by use of a quartz-crystal microbalance (QCM). When the QCM is immersed in liquid, the resonant frequency, $f_0$, and the quality factor, $Q$, of the QCM change depending on $(\rho \eta {)}^{0.5}$, where $\rho$ is the mass density and $\eta$ the viscosity. During the magnetic-field pulse, $f_0$ and $Q$ of the QCM are simultaneously measured by a ringdown technique. The typical resolution of $(\rho \eta {)}^{0.5}$ is 0.5 %. As a benchmark, the viscosity of liquid oxygen is measured up to 55 T.

5 pages, 5 figures

References in corpus (1)

• $\alpha$-$\beta$ and $\beta$-$\gamma$ phase boundaries of solid oxygen observed by adiabatic magnetocaloric effect