A new capability at HPCAT for viscosity measurement at high pressures

White x-ray radiography measurement combined with Paris-Edinburgh cell at the HPCAT beamline 16BM-B provides a capability of investigating viscosity of liquid at high pressure and high temperature conoditions using falling sphere viscometer technique.  A preliminary experiment was carried out for a silicate melt at 3.5 GPa and 1600 °C.  Pt sphere smoothly fell in the silicate melt. Viscosity can be obtained by deriving the falling velocity of the Pt sphere. Video