Properties of Molten Ceramics

Abstract

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Density and viscosity of liquid ZrO2 measured by aerodynamic levitation technique

“…(6) (solid red line) in comparison with viscosity data determined from MD simulations by Kim et al. [17] (dashed green line).…”

“…Fig. 7 shows the result of the viscosity measurement for Al 2 O 3 with the reference value measured by Langstaff (ADL) [7], Paradis (ESL) [15], Elyutin and Bates (oscillating cup method) [16, 17], Urbain (rotating cup method) [18], and Grishchenko (gas-film levitation, GFL) [19]. Viscosity was measured three times at each temperature, and the standard errors are shown as the error bars in Fig.…”

The thermal properties of porous andesite

“…depth. An increase in temperature has been shown to influence the thermal properties of rocks and rock-forming minerals (e.g., Guéguen and Palciauskas, 1994;Nabelek et al, 2010;Guo et al, 2017;Vosteen and Schellschmidt, 2017;Harlé et al, 2019), including volcanic rocks (e.g., Bates et al, 1970;Horai et al, 1970;Petrunin et al, 1971;Fuji and Osako, 1972;Büttner et al, 1998;Romaine et al, 2012;Hofmeister, 2019). Compiled thermal diffusivity data for volcanic materials show that the largest differences in thermal diffusivity occur at temperatures below ~300 °C (Figure 9).…”

Study of the Partial Charge Transport Properties in the Molten Alumina via Molecular Dynamics

“…As for the density, strong discrepancies are observed between various experimental data sets. In particular, the data from Bates et al 52 clearly differ a lot from those of others. We observe that above the melting point, the EMD-2 gives values that lie within the other experimental data, showing that this model predicts correctly the fluidity of the melt.…”

“…The top (a) represents the viscosity of both stable and supercooled molten Al 2 O 3 at a temperature up to 350 K below melting, whereas the bottom (b) represents the viscosity of stable molten Al 2 O 3 only, i.e., above the melting temperature. Experimental data are referenced as follows: Glorieux et al, 50 Elyutin et al., 51 Langstaff et al, 46 Bates et al, 52 and Blomquist et al 53 The melting temperature of alumina is indicated by a vertical dashed line. The statistical error of EMD simulation is found to be negligible and not reported in the figure.…”