The impossibility of a universal relativistic temperature transformation

2004 ◽  
Vol 340 (1-3) ◽  
pp. 92-94 ◽  
Author(s):  
P.T. Landsberg ◽  
G.E.A. Matsas
Keyword(s):  
Relativistic Temperature ◽  
Temperature Transformation

scholarly journals Laying the ghost of the relativistic temperature transformation

1996 ◽  
Vol 223 (6) ◽  
pp. 401-403 ◽  
Author(s):  
Peter T. Landsberg ◽  
George E.A. Matsas
Keyword(s):  
Relativistic Temperature ◽  
Temperature Transformation

THERE EXIST DIFFERENT PROPOSALS FOR RELATIVISTIC TEMPERATURE TRANSFORMATION: THE WHYS AND WHEREFORES

2009 ◽  
Vol 24 (01) ◽  
pp. 73-80 ◽  
Author(s):  
D. MI ◽  
HAI YANG ZHONG ◽  
D. M. TONG
Keyword(s):  
Fundamental Equation ◽  
Thermodynamic System ◽  
Blackbody Radiation ◽  
Entropy Function ◽  
Relativistic Temperature ◽  
Temperature Transformation

In this letter, by using the properties of the entropy function and the fundamental equation of thermodynamics, we discuss the reasons that there exist different proposals for relativistic temperature transformation. Further, we illustrate this point by studying a concrete thermodynamic system-blackbody radiation.

Evidence for ordered Fe3Ni

1987 ◽  
Vol 45 ◽  
pp. 216-217
Author(s):  
K.B. Reuter ◽  
D.B. Williams ◽  
J.I. Goldstein
Keyword(s):  
Experimental Data ◽  
Martensitic Transformation ◽  
Electron Diffraction ◽  
Room Temperature ◽  
Direct Evidence ◽  
Transformation Product ◽  
Iron Meteorites ◽  
X Ray ◽  
Ni Content ◽  
Temperature Transformation

In the Fe-Ni system, although ordered FeNi and ordered Ni3Fe are experimentally well established, direct evidence for ordered Fe3Ni is unconvincing. Little experimental data for Fe3Ni exists because diffusion is sluggish at temperatures below 400°C and because alloys containing less than 29 wt% Ni undergo a martensitic transformation at room temperature. Fe-Ni phases in iron meteorites were examined in this study because iron meteorites have cooled at slow rates of about 10°C/106 years, allowing phase transformations below 400°C to occur. One low temperature transformation product, called clear taenite 2 (CT2), was of particular interest because it contains less than 30 wtZ Ni and is not martensitic. Because CT2 is only a few microns in size, the structure and Ni content were determined through electron diffraction and x-ray microanalysis. A Philips EM400T operated at 120 kV, equipped with a Tracor Northern 2000 multichannel analyzer, was used.

Time-temperature-transformation (TTT) diagram of caustic calcined magnesia

CIM Journal ◽  
2015 ◽  
Vol 6 (1) ◽  
pp. 42-50 ◽  
Author(s):  
K. Ebrahimi-Nasrabadi ◽  
M. Barati ◽  
P. W. Scott
Keyword(s):  
Ttt Diagram ◽  
Temperature Transformation

Induction period of the crystallization of silver nitrate solutions in ethylene glycol

1991 ◽  
Vol 56 (10) ◽  
pp. 2142-2147
Author(s):  
Ivo Sláma
Keyword(s):  
Ethylene Glycol ◽  
Silver Nitrate ◽  
Induction Period ◽  
Glass Forming Ability ◽  
Transformation Theory ◽  
Concentration Region ◽  
Glass Forming ◽  
Temperature Transformation ◽  
Silver Nitrate Solutions ◽  
Nitrate Solutions

The dependence of the induction period of crystallization on supercooling was examined for the silver nitrate-ethylene glycol system over the concentration region of silver nitrate lome fraction of 0 to 0.12. Addition of AgNO3 to ethylene glycol was found to increase considerably the critical induction period of crystallization, although to a lesser extent than Ca(NO3)2, CaCl2, ZnCl2, LiCl and LiNO3 do. The effect of these salts on the critical induction period of crystallization in dimethylsulfoxide, dimethylformamide, dimethylacetamide and methanol was compared in terms of the solvent-rich composition limit of the glass-forming ability. By using the TTT(Time-Temperature-Transformation) theory, it has been deduced that the effect of the salts on the critical induction period of crystallization of ethylene glycol is probably due to the different dependences of viscosity on their concentration in ethylene glyco in the supercooling region.

The supercooling ability of calcium nitrate solutions in ethylene glycol

1989 ◽  
Vol 54 (10) ◽  
pp. 2711-2714
Author(s):  
Ivo Sláma ◽  
Jarmila Malá
Keyword(s):  
Thermal Stability ◽  
Ethylene Glycol ◽  
Induction Period ◽  
Calcium Nitrate ◽  
Transformation Diagram ◽  
Temperature Transformation ◽  
Thermal Stability Of ◽  
Nitrate Solutions

The dependence of the induction period of crystallization on the supercooling was determined for the Ca(NO3)2-ethylene glycol system at mole fractions of the former from 0 to 0.049, and treated in terms of the TTT (Time-Temperature-Transformation) diagram. Addition of Ca(NO3)2 to ethylene glycol brings about a substantial increase in the critical induction period of crystallization. The thermal stability of glasses is discussed in terms of the shape and position of the TTT curves.

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