| A new viscometer suitable for measuring the viscosities of relatively fluid silicates,
in limited ranges, has been devised. The method is based on the study of forced vertical
oscillations of a solid platinum sphere in the melt. The viscometer has been used to
measure the viscosity of Na20.Si02-K20.Si02 eutectic melt, over the temperature
range, 1000°C to 1200°C. The results compare satisfactorily with those reported in the
literature. |