The elastic stiffness coefficients related to the ferroelastic phase transition of hexagonal crystals

2014 ◽  
Author(s):  
Ya-hui Gao ◽  
Guo-xiang Zhou ◽  
Mei-ling Guo ◽  
Jia Li
Keyword(s):  
Phase Transition ◽  
Elastic Stiffness ◽  
Stiffness Coefficients ◽  
Ferroelastic Phase Transition ◽  
Hexagonal Crystals

Ultrasonic Investigation of the Ni40Ti50Cu10 Alloy

2006 ◽  
Vol 115 ◽  
pp. 63-66
Author(s):  
U. Straube ◽  
Giovanni Mazzolai ◽  
A. Biscarini ◽  
B. Coluzzi ◽  
Fabio M. Mazzolai ◽  
...  
Keyword(s):  
Phase Transition ◽  
Ultrasonic Attenuation ◽  
Shear Stiffness ◽  
Elastic Stiffness ◽  
Elastic Behavior ◽  
Strong Increase ◽  
Propagation Mode ◽  
Stiffness Coefficients ◽  
The One ◽  
Overlap Method

The ultrasound pulse echo overlap method has been used to determine the elastic stiffness coefficients and the corresponding ultrasonic attenuation for a single crystal of the Ni40Ti50Cu10 alloy as a function of temperature. The elastic stiffness coefficients exhibit anomalies near the martensitic phase transition. In the shear stiffness coefficient, corresponding to C44 propagation mode in austenite, a large jump occurs from 36 GPa, above the transition, down to 15 GPa, below the transition. This jump is accompanied by a strong increase in the ultrasonic attenuation. The stiffness coefficients corresponding to C11 and C' = (C11 – C12)/2 modes in austenite show an anomaly at the phase transition, however, these are small effects compared to the one associated with C44 mode. The elastic behavior of this crystal has been characterised down to a temperature of 100 K.

Ferroelastic phase transition in univalent mercury halides in vicinity of tricritical point

1992 ◽  
Vol 130 (1) ◽  
pp. 263-283 ◽  
Author(s):  
M. E. Boiko ◽  
Yu. Markov ◽  
V. S. Vikhnin ◽  
A. S. Yurkov ◽  
B. S. Zadokhin
Keyword(s):  
Phase Transition ◽  
Tricritical Point ◽  
Ferroelastic Phase Transition ◽  
Mercury Halides

Determination of ferroelastic phase transition temperature in BiVO4 by Raman spectroscopy

2021 ◽  
Vol 291 ◽  
pp. 129519
Author(s):  
Yuwaraj K. Kshetri ◽  
Bina Chaudhary ◽  
Takashi Kamiyama ◽  
Tae-Ho Kim ◽  
Federico Rosei ◽  
...  
Keyword(s):  
Phase Transition ◽  
Raman Spectroscopy ◽  
Transition Temperature ◽  
Phase Transition Temperature ◽  
Ferroelastic Phase Transition

Ferroelastic Phase Transition and Switchable Dielectric Constant in Heterometallic Niccolite Formate Frameworks

2017 ◽  
Vol 57 (2) ◽  
pp. 537-540 ◽  
Author(s):  
Kai Wang ◽  
Jian-Bo Xiong ◽  
Bin Xia ◽  
Qing-Lun Wang ◽  
Yu-Zhang Tong ◽  
...  
Keyword(s):  
Phase Transition ◽  
Dielectric Constant ◽  
Ferroelastic Phase Transition

Study on Ferroelastic Phase Transition of Hexagonal System by Slowness-Curved-Surface and Polarization

2006 ◽  
Vol 345 (1) ◽  
pp. 103-108
Author(s):  
Wang Aikun ◽  
Zhou Guoxiang ◽  
He Wenchen ◽  
Li Guochang
Keyword(s):  
Phase Transition ◽  
Curved Surface ◽  
Hexagonal System ◽  
Ferroelastic Phase Transition

Superprotonic and ferroelastic phase transition in K3H(SO4)2

2004 ◽  
Vol 130 (3-4) ◽  
pp. 269-274 ◽  
Author(s):  
Yasumitsu Matsuo ◽  
Junko Hatori ◽  
Yoshihiro Nakashima ◽  
Seiichiro Ikehata
Keyword(s):  
Phase Transition ◽  
Ferroelastic Phase Transition
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