Volume Fraction Determination of Discretely Oriented Disc-Shaped Precipitates in Transmission Mode

2017 ◽  
Vol 54 (12) ◽  
pp. 816-837 ◽  
Author(s):  
I. Häusler
Keyword(s):  
Volume Fraction ◽  
Transmission Mode ◽  
Fraction Determination

scholarly journals Volume Fraction Determination of Binary Liquid Mixtures by Measurement of the Equalization Wavelength

Sensors ◽  
2010 ◽  
Vol 10 (8) ◽  
pp. 7082-7088 ◽  
Author(s):  
Ivan Martincek ◽  
Dusan Pudis ◽  
Daniel Kacik ◽  
Kay Schuster
Keyword(s):  
Volume Fraction ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Binary Liquid ◽  
Fraction Determination

Volume fraction determination of Kevlar 49/epoxy composites

1979 ◽  
Vol 19 (13) ◽  
pp. 907-909 ◽  
Author(s):  
Ronald E. Allred ◽  
Nancy H. Hall
Keyword(s):  
Volume Fraction ◽  
Epoxy Composites ◽  
Fraction Determination

Effect and Detection of Loose Chain Ends in Crosslinked Polyurethane Elastomers

1971 ◽  
Vol 44 (1) ◽  
pp. 152-165 ◽  
Author(s):  
A. E. Oberth
Keyword(s):  
Crosslink Density ◽  
Volume Fraction ◽  
Present Theory ◽  
Swelling Ratio ◽  
Polyurethane Elastomers ◽  
Equilibrium Volume ◽  
Equilibrium Swelling ◽  
Volume Swelling

Abstract The effect of loose chain ends on tensile properties and equilibrium swelling of crosslinked polyurethane rubbers is studied. As in plasticized elastomers, tensile strength and elastic modulus are reduced approximately by a factor (1−νE,P)2, where νE,P is the volume fraction of loose chain ends, plasticizer, or both. This effect is much larger than predicted by present theory. Also the equilibrium volume swelling ratio, V0/V, of rubbers having terminal chains or an equal volume of plasticizer is the same, provided they do not differ in crosslink density. However, the volume fraction of “network rubber” in the equilibrium swollen specimen, ν2, differs owing to the non-extractability of terminal chains. On this basis a method is proposed which allows experimental determination of the volume fraction of loose ends. Elastomers abounding in loose chain ends show markedly less long term stress relaxation. This effect is not clearly understood but is useful to detect the presence of non load-bearing network.

scholarly journals Evaluation of the suitability of synthetic polymer fuels in self-ignition engines

2019 ◽  
Vol 178 (3) ◽  
pp. 129-134
Author(s):  
Oleh KLYUS ◽  
Paweł KRAUSE ◽  
Vladimir MARKOV ◽  
Anna SKARBEK-ŻABKIN ◽  
Bowen SA
Keyword(s):  
Volume Fraction ◽  
Synthetic Polymer ◽  
Polymer Materials ◽  
Physical Parameters ◽  
Sauter Mean Diameter ◽  
Synthetic Fuels ◽  
Limit Values ◽  
Experimental Part

The article presents a method for determining the quality of spraying a mixture of oil and synthetic fuels obtained from the pro-cessing of polymer materials. Laboratory tests of physical parameters of such a mixture were carried out, which made it possible to determine the limit values for the volume fraction of synthetic fuels. The method of determining the suitability of this type of fuel takes into account the criterion numbers Re and Oh, which include physical parameters such as viscosity, density, and surface tension. The experimental part concerning the distribution of droplets of injected fuel and determination of Sauter Mean Diameter using laser diffrac-tion confirmed the usefulness of the developed method for the assessment of the possibility of using a mixture of petroleum-based and synthetic fuels in self-ignition engines.

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