Realization of a high-temperature reference point of the temperature scale on the phase transition of the metal-carbon compound MoC–C

2018 ◽  
pp. 22-26
Author(s):  
B.B. Khlevnoy ◽  
◽  
I.A. Grigoryeva ◽  
E.A. Ivashin ◽  
S.A. Ogarev ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Reference Point ◽  
Temperature Scale ◽  
Carbon Compound ◽  
Temperature Reference

Realization of High-Temperature Reference Point of the Temperature Scale for the Phase Transition of a δMoC–C Metal-Carbon Compound

2019 ◽  
Vol 61 (12) ◽  
pp. 1159-1165
Author(s):  
B. B. Khlevnoy ◽  
I. A. Grigor’eva ◽  
E. A. Ivashin ◽  
S. A. Ogarev ◽  
V. I. Sapritsky
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Reference Point ◽  
Temperature Scale ◽  
Carbon Compound ◽  
Temperature Reference

scholarly journals Cooper Pair-Like Systems at High Temperature and their Role on Fluctuations Near the Critical Temperature

1998 ◽  
Vol 12 (29n31) ◽  
pp. 3216-3219 ◽  
Author(s):  
M. Ausloos ◽  
S. Dorbolo
Keyword(s):  
Phase Transition ◽  
Electrical Resistivity ◽  
High Temperature ◽  
Critical Temperature ◽  
Oxygen Diffusion ◽  
Cooper Pair ◽  
Anomalous Behavior ◽  
Anomalous Effect ◽  
Linear Temperature ◽  
Ybco Sample

A logarithmic behavior is hidden in the linear temperature regime of the electrical resistivity R(T) of some YBCO sample below 2T c where "pairs" break apart, fluctuations occur and "a gap is opening". An anomalous effect also occurs near 200 K in the normal state Hall coefficient. In a simulation of oxygen diffusion in planar 123 YBCO, an anomalous behavior is found in the oxygen-vacancy motion near such a temperature. We claim that the behavior of the specific heat above and near the critical temperature should be reexamined in order to show the influence and implications of fluctuations and dimensionality on the nature of the phase transition and on the true onset temperature.

scholarly journals High-temperature phase transition of SrRuO3and SrHfO5: X-ray diffraction and PAC spectroscopy

1996 ◽  
Vol 52 (a1) ◽  
pp. C364-C364
Author(s):  
J. A. Guevara ◽  
S. L. Cuffini ◽  
Y. P. Mascarenhas ◽  
P. de la Presa ◽  
A. Ayala ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
Pac Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Temperature Phase Transition

Second-order phase transition of high isotactic polypropylene at high temperature

Polymer ◽  
2002 ◽  
Vol 43 (4) ◽  
pp. 1473-1481 ◽  
Author(s):  
Fangming Gu ◽  
Masamichi Hikosaka ◽  
Akihiko Toda ◽  
Swapan Kumar Ghosh ◽  
Shinichi Yamazaki ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Isotactic Polypropylene ◽  
Order Phase Transition ◽  
Second Order ◽  
Second Order Phase Transition

Photoelectron diffraction and photoelectron holography study of a Ge(111) high-temperature surface phase transition

1993 ◽  
Vol 281 (3) ◽  
pp. 178-179
Author(s):  
T.T. Tran ◽  
S. Thevuthasan ◽  
Y.J. Kim ◽  
D.J. Friedman ◽  
A.P. Kaduwela ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Surface Phase ◽  
Surface Phase Transition ◽  
Photoelectron Diffraction ◽  
Temperature Surface

Mössbauer Studies of Fe2+ in Iron Langbeinites and other Crystals with Langbeinite Structure

1998 ◽  
Vol 53 (1-2) ◽  
pp. 27-37 ◽  
Author(s):  
M. Windhaus ◽  
B. D. Mosel ◽  
W. Müller-Warmuth
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
High Temperature ◽  
Low Temperature ◽  
High Spin State ◽  
Cubic Phases ◽  
Debye Temperatures ◽  
Phase Transition Temperatures ◽  
Abrupt Changes ◽  
Temperature Dependences

Abstract 57 Fe Mössbauer spectra have been measured at various temperatures between 4.2 K and 300 K for iron langbeinites A 2 Fe 2^04)3 with A = K, NH 4 , Rb, T1 and magnesium, manganese and cadmium lang-beinites doped with Fe" + . The spectra revealed several contributions whose isomer shifts and quadru-pole splittings have been obtained by fitting program routines. For the high-temperature cubic phases two crystallographically non-equivalent iron sites have been identified, characteristic of Fe2+ in the high-spin state. Abrupt changes of the quadrupole couplings indicated phase transitions; in some cases, the spectra have also revealed several sites for Fe2+ in low temperature phases. From the temperature dependences, phase transition temperatures, crystal field splittings and Debye temperatures have been derived.

High-Temperature Raman Investigation on Phase Transition of LBO Crystal

2009 ◽  
Vol 26 (11) ◽  
pp. 113301 ◽  
Author(s):  
Zhang Xia ◽  
Wan Song-Ming ◽  
Yin Shao-Tang ◽  
You Jing-Lin
Keyword(s):  
Phase Transition ◽  
High Temperature ◽  
Lbo Crystal
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