High pressure rolling‐ball viscometer of a corrosion‐resistant type

1990 ◽  
Vol 61 (2) ◽  
pp. 871-873 ◽  
Author(s):  
Seiji Sawamura ◽  
Nobuo Takeuchi ◽  
Kiyoshi Kitamura ◽  
Yoshihiro Taniguchi
Keyword(s):  
High Pressure ◽  
Corrosion Resistant ◽  
Rolling Ball ◽  
Rolling Ball Viscometer

A High Pressure Rolling-Ball Viscometer up to 1 GPa

1986 ◽  
Vol 25 (Part 1, No. 7) ◽  
pp. 1091-1096 ◽  
Author(s):  
Masaya Izuchi ◽  
Ken Nishibata
Keyword(s):  
High Pressure ◽  
Rolling Ball ◽  
Rolling Ball Viscometer

A rolling ball viscometer for high pressure use

Physica B+C ◽  
1986 ◽  
Vol 139-140 ◽  
pp. 903-906 ◽  
Author(s):  
K. Nishibata ◽  
M. Izuchi
Keyword(s):  
High Pressure ◽  
Rolling Ball ◽  
Rolling Ball Viscometer

scholarly journals Effects of Pressure, Temperature, and Concentration on the Viscosity of Aqueous Ammonium Bromide Solution

1995 ◽  
Vol 50 (2-3) ◽  
pp. 316-322 ◽  
Author(s):  
Yukihiro Yoshimura ◽  
Seiji Sawamura ◽  
Yoshihiro Taniguchi
Keyword(s):  
Activation Energy ◽  
High Pressure ◽  
Water Structure ◽  
Ammonium Bromide ◽  
Concentration Effects ◽  
Rolling Ball ◽  
Bromide Solution ◽  
Rolling Ball Viscometer ◽  
Temperature And Concentration Effects ◽  
Bromide Solutions

Abstract The viscosity of aqueous ammonium bromide solutions is measured at 0.1-1.0 mol kg-1, 278.2-323.2 K, and 0.1-375 MPa, using a high-pressure rolling-ball viscometer. The activation energy (Ev) for viscous flow and Jones-Dole's B coefficient are estimated. Ev against pressure yields a concave curve with a minimum and B yields a convex one with a maximum. These phenomena are attributed to pressure, temperature, and concentration effects on the water-structure.

Rolling Ball Viscometer

1943 ◽  
Vol 15 (3) ◽  
pp. 212-218 ◽  
Author(s):  
Robert Hubbard ◽  
George Brown
Keyword(s):  
Rolling Ball ◽  
Rolling Ball Viscometer
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