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Author: robert berg

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41. Quantitative characterization of the viscosity of a microemulsion
Published: 9/15/1987
Authors: Robert F Berg, Michael R Moldover, John S. Huang
Abstract: We have measured the viscosity of the three-component microemulsion water/decane/ AOT as a function of temperature and droplet volume fraction. At temperatures well below the phaseseparation temperature the viscosity is described by treating the drop ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915283

42. Viscosity and density of two alkali metal mixtures
Published: 9/1/1987
Authors: Robert F Berg, Michael R Moldover, Savely Rabinovich, Alexander Voronel
Abstract: We have measured the density and viscosity of a K-Cs binary mixture and a Na-K-Cs ternary mixture from their crystallisation points (234 K and 199 K respectively) to 300 K. Extrapolations of the fluidity data indicate that the effective glass tempera ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915281

43. Viscometer for low frequency, low shear rate measurements
Published: 8/1/1986
Authors: Robert F Berg, Michael R Moldover
Abstract: We describe a torsion-oscillator viscometer whose low frequency ( 0.5 Hz) and very low shear rate (0.05 s-1) are required for measurements of shear sensitive fluids such as microemulsions, polymer melts and solutions gels, and liquid mixtures near cr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914158

44. Viscosity measurements near a critical point using a novel torsion oscillator
Published: 5/1/1986
Authors: Robert F Berg, Michael R Moldover
Abstract: A torsion-oscillator viscometer has been constructed for the measurement of the viscosity of fluids near both liquid-vapor and liquid-liquid critical points. This viscometer has a resolution of ±0.2% and operates at a low frequency (0.6 Hz) and a ver ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914563



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