Results 231 to 240 of about 16,419 (283)

Density of Liquid Manganese Measured Using the Maximum Bubble Pressure Method

Metallurgical and Materials Transactions B, 2021
Manganese is an important metal for steelmaking. Data on the density of the metal are scarce and show considerable scatter. Present work reports the density of the liquid manganese in the range of 1535 K to 1836 K estimated for the first time with the use of the maximum bubble pressure technique.
Iurii Korobeinikov   +3 more
openaire   +2 more sources

A test of the maximum bubble pressure method for electrocapillary measurements

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1987
Abstract The reliability of the maximum bubble pressure method for electrocapillary measurements has been tested in aqueous and non-aqueous solutions. The results suggest that, although contact angle problems are actually eliminated by using this method, serious systematic errors may be observed.
Panagiotis Nikitas, Adriani Pappa-Louisi
openaire   +2 more sources

The measurement of dynamic surface tension by the maximum bubble pressure method

Colloid & Polymer Science, 1994
The principle of maximum pressure in a bubble for measurements of dynamic surface tension is realized in a fully automatically operating apparatus. The set-up yields data in the time interval from 1 ms up to several seconds and can be temperature controlled from 5° to 80°C.
P. Joos   +2 more
openaire   +2 more sources

Unusual Characteristics of the Maximum Bubble Pressure Method Using a Teflon Capillary

Journal of Colloid and Interface Science, 1994
Abstract The maximum bubble pressure method has been used recently in a continuous-bubbling mode to measure the dynamic surface tension of surfactant solutions at varying bubble frequencies. A modification of this method, which utilizes a syringe pump supplying gas at controlled rates, has been developed to examine bubble growth by providing an ...
Douglas E. Hirt, Cheryl P. Hallowell
openaire   +2 more sources

Dynamic surface tension of micellar solutions studied by the maximum bubble pressure method [PDF]

open access: possibleColloid & Polymer Science, 1994
A theoretical model for the dynamic surface tension of an air bubble expanding in surfactant solution is proposed. The model accounts for the effect of convection on the surfactant diffusion and the effect of expansion of the bubble surface during the adsorption of surfactant molecules.
Tz. H. Iliev, Ceco D. Dushkin
openaire   +1 more source

Surface tension measurement of oil/refrigerant mixture by maximum bubble pressure method

International Journal of Refrigeration, 2017
Abstract Lubrication oil used in refrigerant compressors forms oil mist in the compressor shell. Some of the oil mist is discharged into a refrigeration cycle with refrigerant and causes degradation of heat transfer in heat exchangers. Since the generation of the oil mist is related to the Weber number, it is necessary to measure the surface tension ...
Mitsuhiro Fukuta   +3 more
openaire   +2 more sources

The measurement of dynamic surface tensions of highly viscous liquids by the maximum bubble pressure method

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1993
Abstract A newly designed apparatus based on the principle of maximum bubble pressure can be used for measuring the dynamic surface tension in a time interval from 1 ms to 10 s. The surface tension values for pure liquids obtained at small lifetimes are influenced by hydrodynamic effects.
V. B. Fainerman   +2 more
openaire   +2 more sources

Dynamic Surface Tension of Micellar Triton X-100 Solutions by the Maximum-Bubble-Pressure Method

Journal of Colloid and Interface Science, 1994
Abstract The dynamic maximum-bubble-pressure method was used to measure the dynamic surface tension of Triton X-100 solutions (at the CMC and at concentrations above the CMC). Measurements were performed at 30.0, 40.0, 50.0, and 60.0°C. The results at 30.0°C are in excellent agreement with the data obtained through other methods (oscillating jet and ...
Makievski, A.V.   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy