Pure Thermal Diffusion. I. Time‐Dependent Phenomenological Theory for Binary Liquids

1970 ◽  
Vol 53 (6) ◽  
pp. 2321-2332 ◽  
Author(s):  
Frederick H. Horne ◽  
Terry G. Anderson
Keyword(s):  
Thermal Diffusion ◽  
Phenomenological Theory ◽  
Time Dependent ◽  
Binary Liquids

An Interpretation on Kinetics of Martensitic Transformation

2011 ◽  
Vol 172-174 ◽  
pp. 90-98 ◽  
Author(s):  
Tomoyuki Kakeshita ◽  
Takashi Fukuda ◽  
Yong-Hee Lee
Keyword(s):  
Magnetic Field ◽  
Hydrostatic Pressure ◽  
Martensitic Transformation ◽  
Magnetic Fields ◽  
Martensitic Transformations ◽  
Phenomenological Theory ◽  
Time Dependent ◽  
Isothermal Process ◽  
Kinetics Of ◽  
Transformation Processes

We have investigated athermal and isothermal martensitic transformations (typical displacive transformations) in Fe–Ni, Fe–Ni–Cr, and Ni-Co-Mn-In alloys under magnetic fields and hydrostatic pressures in order to understand the time-dependent nature of martensitic transformation, that is, the kinetics of martensitic transformation. We have confirmed that the two transformation processes are closely related to each other, that is, the athermal process changes to the isothermal process and the isothermal process changes to the athermal one under a hydrostatic pressure or a magnetic field. These findings can be explained by the phenomenological theory, which gives a unified explanation for the two transformation processes previously proposed by our group.

Quantitative Isotopenanreicherung im Thermodiffusionstrennrohr / Quantitative Isotope Enrichment in Thermal Diffusion Separation Column

1978 ◽  
Vol 33 (3) ◽  
pp. 353-357
Author(s):  
R. Kretner ◽  
G. Dickel
Keyword(s):  
Thermal Diffusion ◽  
Iteration Method ◽  
Experimental Results ◽  
Time Dependent ◽  
Isotope Enrichment ◽  
Effective Volume ◽  
Separation Column ◽  
Characteristic Values ◽  
Diffusion Separation ◽  
Limits Of Error

AbstractIn applying the theory of the thermal diffusion separation column with containers at both ends to quantitative isotope enrichment, the volume of the column has not yet been exactly accounted for. A formula is derived which describes the effective volume as a function of the characteristic values of the enrichment apparatus. An iteration method for calculation of the effective volume is presented. The theoretical values are compared with experimental results in the case of time dependent enrichment of two isotopes (13CH4, 14CH4) and three different ways of enrichment. Agreement within the experimental limits of error of ± 6% was found.

A phenomenological theory of time dependent fluctuations above Tc

1971 ◽  
Vol 9 (14) ◽  
pp. vii
Author(s):  
PeterL. Young ◽  
Arthur Bienenstock
Keyword(s):  
Phenomenological Theory ◽  
Time Dependent
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