Divalent Surfactants. Experimental Results and Theoretical Modeling of Surfactant/Water Phase Equilibria

Langmuir ◽  
1994 ◽  
Vol 10 (7) ◽  
pp. 2177-2187 ◽  
Author(s):  
Haakan Hagslaett ◽  
Olle Soederman ◽  
Bengt Joensson
Keyword(s):  
Phase Equilibria ◽  
Theoretical Modeling ◽  
Experimental Results ◽  
Water Phase

Comparison of phase equilibria between FactSage predictions and experimental results in titanium oxide-containing system

Calphad ◽  
2018 ◽  
Vol 63 ◽  
pp. 77-81 ◽  
Author(s):  
Shuai Wang ◽  
Mao Chen ◽  
Yufeng Guo ◽  
Tao Jiang ◽  
Baojun Zhao
Keyword(s):  
Phase Equilibria ◽  
Titanium Oxide ◽  
Experimental Results

Carbon dioxide-water phase equilibria results from the Wong-Sandler combining rules

1997 ◽  
Vol 130 (1-2) ◽  
pp. 73-85 ◽  
Author(s):  
Guor-Shiarn Shyu ◽  
Nishawn S.M Hanif ◽  
Kenneth R Hall ◽  
Philip T Eubank
Keyword(s):  
Carbon Dioxide ◽  
Phase Equilibria ◽  
Water Phase

Study on adsorption of herbicide onto functionalized cellulose extracted from Juncus acutus L. plant: Experimental results and theoretical modeling

2015 ◽  
Vol 67 ◽  
pp. 169-178 ◽  
Author(s):  
Mohamed Khalfaoui ◽  
Amel El Ghali ◽  
Chadlia Aguir ◽  
Zaineb Mohamed ◽  
Mohamed Hassen V. Baouab ◽  
...  
Keyword(s):  
Theoretical Modeling ◽  
Experimental Results ◽  
Juncus Acutus

The Profile Development of a Twin-Land Oil-Control Ring During Running-In

1998 ◽  
Vol 120 (3) ◽  
pp. 616-621 ◽  
Author(s):  
M. Visscher ◽  
D. Dowson ◽  
C. M. Taylor
Keyword(s):  
Surface Roughness ◽  
Theoretical Model ◽  
Twist Angle ◽  
Theoretical Modeling ◽  
Experimental Results ◽  
Roughness Height ◽  
Profile Development ◽  
Motored Engine

This paper presents experimental results of motored engine tests on the wear and profile development of a twin-land oil-control ring. It is shown that the roughness height of the plateau honed liner decreases during running-in, indicating that the deeper grooves remain unaffected. The piston lands are much smoother, and do not show a significant overall change in surface roughness. The profile development results are compared with computer predictions in order to verify the theoretical modeling. It is indicated that the worn land profiles remain tapered, with an inclination resembling the twist angle of the ring. However, there remains a difference in the experimental and the numerically predicted land inclinations. This is probably due to the piston tilt, which was not included in the theoretical model.

Theoretical Modeling, Analysis, and Experimental Results of a Hydraulic Artificial Muscle Prototype

2019 ◽  
Author(s):  
Jonathon E. Slightam ◽  
Mark L. Nagurka
Keyword(s):  
Muscle Mechanics ◽  
Weight Ratio ◽  
Artificial Muscle ◽  
Theoretical Modeling ◽  
Experimental Results ◽  
Artificial Muscles ◽  
Mobile Manipulation ◽  
Modeling Analysis ◽  
Potential Applications ◽  
High Internal Pressure

Abstract Fluidic braided artificial muscles have been studied for close to seventy years. Their high power-to-weight ratio and force-to-weight ratio make them a desirable actuation technology for compact and lightweight mobile manipulation. Use of hydraulics with fluidic artificial muscles has helped realize high actuation forces with new potential applications. To achieve large actuation forces produced from high internal pressure, artificial muscles operate near the limitations of their mechanical strength. Design improvements and future applications in mechanical systems will benefit from detailed theoretical analysis of the fluidic artificial muscle mechanics. This paper presents the theoretical modeling of a hydraulic artificial muscle, analysis of its mechanics, and experimental results that validate the model. A prototype is analyzed that operates at 14 MPa and can generate up to 6.3 kN of force and a displacement of 21.5 mm. This model promises to be useful for mechanical system design and model-based control.

Titanium-Aluminide Alloys Between the Compositions Ti3 Al and TiAl

1988 ◽  
Vol 133 ◽  
Author(s):  
J. C. Mishurda ◽  
J. C. Lin ◽  
Y. A. Chang ◽  
J. H. Perepezko
Keyword(s):  
Phase Diagram ◽  
High Temperature ◽  
Phase Equilibria ◽  
Titanium Aluminide ◽  
High Temperature Phase ◽  
Experimental Results ◽  
Temperature Phase ◽  
Titanium Aluminum Alloys ◽  
Gibbs Energies ◽  
Schottky Type

ABSTRACTMany questions still remain about the Ti-Al phase diagram, particularly for the compositions between the intermetallic compounds Ti3Al and TiAl. In an experimental study of the phase equilibria, titanium-aluminum alloys with 44, 46, 48, 50 at.% aluminum were produced by drop casting, HIP, and a double forging process method. Differential thermal analysis (DTA), optical metallography, and residual oxygen analysis were performed in order to characterize the low and high temperature phase equilibria of the alloys. The experimental results are compared with the calculated Ti-Al phase diagram which is being modeled concurrently. For the bcc, hcp and liquid phases, the Margules type of equations are used to represent the excess Gibbs energies. A maximum of six parameters are used for each of the phases. For the TiAl (Llo) and Ti3Al (D019 ) phases, the Wagner-Schottky type of equations are used to represent the Gibbs energies. All of the other phases are treated as line compounds. Values of the solution parameters were obtained by optimization using existing thermochemical and phase boundary data reported in the literature. The calculated results show that the high temperature hcp phase field is stable between approximately 34 at% Al, in equilibrium with β and α2 up to about 48 at% Al in equilibrium with γ and L and forms from the liquid by a peritectic reaction β+L-α. The experimental results obtained to date for the four alloys are consistent with the calculated equilibria which is being refined and also allows for an estimate of the metastable equilibria.

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