Determination of Paleoheat-Flux and Activation Energies Using Multiple Thermal Indicator Tomography

1993 ◽  
pp. 57-67
Author(s):  
Z. HE ◽  
I. LERCHE ◽  
R. Evans ◽  
N. Piggot
Keyword(s):  
Activation Energies ◽  
Thermal Indicator ◽  
Paleoheat Flux

Determination of paleoheat-flux using multiple thermal indicator tomography

1992 ◽  
Vol 24 (7) ◽  
pp. 825-846 ◽  
Author(s):  
Z. He ◽  
I. Lerche
Keyword(s):  
Thermal Indicator ◽  
Paleoheat Flux

scholarly journals Migration of mineral oil in elastomers

2021 ◽  
Author(s):  
Tobias Förster ◽  
Artur Blivernitz
Keyword(s):  
Diffusion Coefficients ◽  
Mineral Oil ◽  
Activation Energies ◽  
Concentration Profiles ◽  
Small Reservoir ◽  
Experimental Procedure ◽  
Mineral Oils ◽  
The Absolute ◽  
Suitable Measure

AbstractThis work describes a newly introduced experimental procedure to quantify the diffusion progress of mineral oils locally resolved in NBR. Diffusion of reference oils IRM 901, IRM 902 and IRM 903 in NBR with various acrylonitrile contents was investigated. Classical sorption experiments were performed as a basic characterization and compared to the newly introduced method. Here, elastomer specimens are only being dipped with the bottom in a relatively small reservoir of mineral oil. This provides a determination of locally resolved concentration profiles of mineral oils, and the calculation of diffusion coefficients. These diffusion coefficients follow the same trends like those determined via sorption experiments. Despite differences in the absolute numbers, activation energies of diffusion can be applied as a suitable measure for the compatibility of elastomers and fluids.

Novel Mg Sensors for Application in Molten Al

2008 ◽  
Vol 368-372 ◽  
pp. 265-267 ◽  
Author(s):  
Hui Zhu Zhou ◽  
Lei Dai ◽  
Yue Hua Li ◽  
Yin Lin Wu ◽  
Ling Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Electrical Properties ◽  
Solid State Reaction ◽  
Electrochemical Sensors ◽  
Activation Energies ◽  
Refining Process ◽  
Molten Aluminium ◽  
On Line ◽  
Mg Content

Mg ion conductors, MgAl2O4 and MgZr4(PO4)6, were prepared by solid state reaction. Their electrical properties were measured and their application in electrochemical sensors for on-line determination of Mg in molten Al in the refining process and alloying process was examined. The activation energies for Mg ion conduction in MgAl2O4 and MgZr4(PO4)6 are 2.08 eV and 1.7 eV, respectively. The sensors have been found to respond rapidly to the change of Mg content in molten aluminium around 1000 K.

Determination of activation energies using field emission fluctuations from semiconductors

1991 ◽  
Vol 246 (1-3) ◽  
pp. 60-63 ◽  
Author(s):  
R.Z. Bakhtizin ◽  
S.S. Ghots
Keyword(s):  
Field Emission ◽  
Activation Energies

Determination of paleoheat flux from vitrinite reflectance data, and from sterane and hopane isomer data

1988 ◽  
Vol 30 (1-3) ◽  
pp. 1-28 ◽  
Author(s):  
C. Armagnac ◽  
C.G.St.C. Kendall ◽  
C. Kuo ◽  
I. Lerche ◽  
J. Pantano
Keyword(s):  
Vitrinite Reflectance ◽  
Paleoheat Flux ◽  
Reflectance Data
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