Anomalous and Instable Ultrasonic Evidence for a Structural Phase Transition at the Critical Value V<sub>c</sub> in Electrorheological Suspensions

Zhang Yue

doi:doi:10.11648/j.ajmp.20190803.11

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Anomalous and Instable Ultrasonic Evidence for a Structural Phase Transition at the Critical Value V_c in Electrorheological Suspensions

Zhang Yue

Published in American Journal of Modern Physics (Volume 8, Issue 3)

Received: 15 June 2019 Accepted: 26 July 2019 Published: 23 August 2019

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Abstract

Using the sample cell designed by ourselves and the electrorheological (ER) samples, one of them is imported from USA (sample 1), the other one is made from tsinghua university (sample2), we perform a series experiments with these two ER samples, and observe some curious phenomena; such as the ultrasonic study on the longitudinal sound velocity in electrorheological (ER) suspensions reveals the existence of a serious shear instability at the critical value of applied voltages, the evidence retains the time of about a few milliseconds; moreover, the experiments on ER samples demonstrate that there is a saturation value for the ultrasonic attenuation when the applied voltages arrive a critical value V_c, which resemble to the cases of a lot of superconductors at the critical value of temperature T_c; In the experiments on the I-V characteristic of the two ER samples, we observe that an abrupt change in the I-V characteristics occurs at the critical value V_c of the applied voltages, furthermore, the I-V characteristic of either of the two ER samples is linear after the applied voltages overpass the critical value V_c, just as same as the I-V characteristic of metal conductors. Therefore, it is reasonable to suggest that this anomalous ultrasonic evidence we observed in the experiments corresponds to a structural phase transition from liquidlike phase to metal-solidlike phase in the electrorheological suspensions.

Published in	American Journal of Modern Physics (Volume 8, Issue 3)
DOI	10.11648/j.ajmp.20190803.11
Page(s)	37-39
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Electrorheological Suspension, Anomalous Ultrasonic Evidence, Attenuation, I-V Characteristics, Phase Transition

References

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[2]	Block H and Kelly J P. Electronheological Fluids: U. S. 4687589 [P]. 1987- 08-18.
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[5]	Halsey T C and Toor W. Structure of Electrorheological Fluids [J]. Phys. Rev. Lett., 1990, 65 (22): 2820 -2823.
[6]	Klingenberg D J, Swol F V and Zukoski C F J. Dynamic Simulation of Electrorheological Suspensions [J]. J. Chem. Phys. 1989, 91 (12): 7888 -7894.
[7]	Gonon P and Foulc J-N. Temperature Dependence of Particle-Particle Interactions in Electrorheological Fluids [J]. J. of Appl. Phys., 2000, 87 (7): 3563-3566.
[8]	Wu C W and Conrad H. Multi-Coated Spheres: Recommended Electrorheological Particles [J]. J. Phys. D: Appl. Phys, 1998, 31: 3312 -3315.
[9]	Tang X, Wu C, and Conrad H. On the Conductivity Model for the Electrorheological Response of Dielectric Particles with a Conducting Film [J]. J. Appl. Phys, 1995, 78 (6): 4183- 4188.
[10]	Kolobko E V, Zhurauski M A, and Novikova Z A. Viscoelestic Properties of Composite Electrorheological Suspensions [J]. Current Smart Materials, 2017, 2 (1): 12-19.
[11]	Agafonov A V, Kraev A S, Ivanova O S, et al. Comparative Study of the Electrorheological Effect in Suspensions of Needlelike and Isotropic Cerium Dioxide Nanoparticles [J]. Rheologica Acta, 2018, 57 (4): 307-315.
[12]	Choi S B. Selected Papers from the 15^th International Conference on Electrorheological Fluids and Magnetorheological Suspensions (ERME 2016) [J]. Smart Materials and Structures, 2017, 26 (5): 050201.
[13]	Mvlik M, LLcokova M, Osicka J, and Kutalkova E. Electrorheology of Si-ATRP-Modified Graphene Oxide Particles and Compatibility with Silicone Oil [J]. RSC Advances, 2019, 9 (3): 1187-1198.
[14]	Roy R A and Richardson J. Ultrasonic Propagation in Electrorheological Suspensions [J]. J. Acoust. Soc. Amer., 1990, 87: S85.
[15]	Toulouse J, Wang X M and Hong D J L. Ultrasonic Evidence for a structural Phase Transition at 220K in YBa2Cu3O7−δ [J]. Phys. Rev. B, 1988, 38 (10): 7077-7079.

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Zhang Yue. (2019). Anomalous and Instable Ultrasonic Evidence for a Structural Phase Transition at the Critical Value Vc in Electrorheological Suspensions. American Journal of Modern Physics, 8(3), 37-39. https://doi.org/10.11648/j.ajmp.20190803.11

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ACS Style

Zhang Yue. Anomalous and Instable Ultrasonic Evidence for a Structural Phase Transition at the Critical Value Vc in Electrorheological Suspensions. Am. J. Mod. Phys. 2019, 8(3), 37-39. doi: 10.11648/j.ajmp.20190803.11

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AMA Style

Zhang Yue. Anomalous and Instable Ultrasonic Evidence for a Structural Phase Transition at the Critical Value Vc in Electrorheological Suspensions. Am J Mod Phys. 2019;8(3):37-39. doi: 10.11648/j.ajmp.20190803.11

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@article{10.11648/j.ajmp.20190803.11,
  author = {Zhang Yue},
  title = {Anomalous and Instable Ultrasonic Evidence for a Structural Phase Transition at the Critical Value Vc in Electrorheological Suspensions},
  journal = {American Journal of Modern Physics},
  volume = {8},
  number = {3},
  pages = {37-39},
  doi = {10.11648/j.ajmp.20190803.11},
  url = {https://doi.org/10.11648/j.ajmp.20190803.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmp.20190803.11},
  abstract = {Using the sample cell designed by ourselves and the electrorheological (ER) samples, one of them is imported from USA (sample 1), the other one is made from tsinghua university (sample2), we perform a series experiments with these two ER samples, and observe some curious phenomena; such as the ultrasonic study on the longitudinal sound velocity in electrorheological (ER) suspensions reveals the existence of a serious shear instability at the critical value of applied voltages, the evidence retains the time of about a few milliseconds; moreover, the experiments on ER samples demonstrate that there is a saturation value for the ultrasonic attenuation when the applied voltages arrive a critical value Vc, which resemble to the cases of a lot of superconductors at the critical value of temperature Tc; In the experiments on the I-V characteristic of the two ER samples, we observe that an abrupt change in the I-V characteristics occurs at the critical value Vc of the applied voltages, furthermore, the I-V characteristic of either of the two ER samples is linear after the applied voltages overpass the critical value Vc, just as same as the I-V characteristic of metal conductors. Therefore, it is reasonable to suggest that this anomalous ultrasonic evidence we observed in the experiments corresponds to a structural phase transition from liquidlike phase to metal-solidlike phase in the electrorheological suspensions.},
 year = {2019}
}

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TY  - JOUR
T1  - Anomalous and Instable Ultrasonic Evidence for a Structural Phase Transition at the Critical Value Vc in Electrorheological Suspensions
AU  - Zhang Yue
Y1  - 2019/08/23
PY  - 2019
N1  - https://doi.org/10.11648/j.ajmp.20190803.11
DO  - 10.11648/j.ajmp.20190803.11
T2  - American Journal of Modern Physics
JF  - American Journal of Modern Physics
JO  - American Journal of Modern Physics
SP  - 37
EP  - 39
PB  - Science Publishing Group
SN  - 2326-8891
UR  - https://doi.org/10.11648/j.ajmp.20190803.11
AB  - Using the sample cell designed by ourselves and the electrorheological (ER) samples, one of them is imported from USA (sample 1), the other one is made from tsinghua university (sample2), we perform a series experiments with these two ER samples, and observe some curious phenomena; such as the ultrasonic study on the longitudinal sound velocity in electrorheological (ER) suspensions reveals the existence of a serious shear instability at the critical value of applied voltages, the evidence retains the time of about a few milliseconds; moreover, the experiments on ER samples demonstrate that there is a saturation value for the ultrasonic attenuation when the applied voltages arrive a critical value Vc, which resemble to the cases of a lot of superconductors at the critical value of temperature Tc; In the experiments on the I-V characteristic of the two ER samples, we observe that an abrupt change in the I-V characteristics occurs at the critical value Vc of the applied voltages, furthermore, the I-V characteristic of either of the two ER samples is linear after the applied voltages overpass the critical value Vc, just as same as the I-V characteristic of metal conductors. Therefore, it is reasonable to suggest that this anomalous ultrasonic evidence we observed in the experiments corresponds to a structural phase transition from liquidlike phase to metal-solidlike phase in the electrorheological suspensions.
VL  - 8
IS  - 3
ER  -

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Author Information

Zhang Yue

Department of Physics, Hunan Normal University, Changsha, China

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APA Style

Zhang Yue. (2019). Anomalous and Instable Ultrasonic Evidence for a Structural Phase Transition at the Critical Value Vc in Electrorheological Suspensions. American Journal of Modern Physics, 8(3), 37-39. https://doi.org/10.11648/j.ajmp.20190803.11

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ACS Style

Zhang Yue. Anomalous and Instable Ultrasonic Evidence for a Structural Phase Transition at the Critical Value Vc in Electrorheological Suspensions. Am. J. Mod. Phys. 2019, 8(3), 37-39. doi: 10.11648/j.ajmp.20190803.11

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AMA Style

Zhang Yue. Anomalous and Instable Ultrasonic Evidence for a Structural Phase Transition at the Critical Value Vc in Electrorheological Suspensions. Am J Mod Phys. 2019;8(3):37-39. doi: 10.11648/j.ajmp.20190803.11

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@article{10.11648/j.ajmp.20190803.11,
  author = {Zhang Yue},
  title = {Anomalous and Instable Ultrasonic Evidence for a Structural Phase Transition at the Critical Value Vc in Electrorheological Suspensions},
  journal = {American Journal of Modern Physics},
  volume = {8},
  number = {3},
  pages = {37-39},
  doi = {10.11648/j.ajmp.20190803.11},
  url = {https://doi.org/10.11648/j.ajmp.20190803.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmp.20190803.11},
  abstract = {Using the sample cell designed by ourselves and the electrorheological (ER) samples, one of them is imported from USA (sample 1), the other one is made from tsinghua university (sample2), we perform a series experiments with these two ER samples, and observe some curious phenomena; such as the ultrasonic study on the longitudinal sound velocity in electrorheological (ER) suspensions reveals the existence of a serious shear instability at the critical value of applied voltages, the evidence retains the time of about a few milliseconds; moreover, the experiments on ER samples demonstrate that there is a saturation value for the ultrasonic attenuation when the applied voltages arrive a critical value Vc, which resemble to the cases of a lot of superconductors at the critical value of temperature Tc; In the experiments on the I-V characteristic of the two ER samples, we observe that an abrupt change in the I-V characteristics occurs at the critical value Vc of the applied voltages, furthermore, the I-V characteristic of either of the two ER samples is linear after the applied voltages overpass the critical value Vc, just as same as the I-V characteristic of metal conductors. Therefore, it is reasonable to suggest that this anomalous ultrasonic evidence we observed in the experiments corresponds to a structural phase transition from liquidlike phase to metal-solidlike phase in the electrorheological suspensions.},
 year = {2019}
}

Copy | Download

TY  - JOUR
T1  - Anomalous and Instable Ultrasonic Evidence for a Structural Phase Transition at the Critical Value Vc in Electrorheological Suspensions
AU  - Zhang Yue
Y1  - 2019/08/23
PY  - 2019
N1  - https://doi.org/10.11648/j.ajmp.20190803.11
DO  - 10.11648/j.ajmp.20190803.11
T2  - American Journal of Modern Physics
JF  - American Journal of Modern Physics
JO  - American Journal of Modern Physics
SP  - 37
EP  - 39
PB  - Science Publishing Group
SN  - 2326-8891
UR  - https://doi.org/10.11648/j.ajmp.20190803.11
AB  - Using the sample cell designed by ourselves and the electrorheological (ER) samples, one of them is imported from USA (sample 1), the other one is made from tsinghua university (sample2), we perform a series experiments with these two ER samples, and observe some curious phenomena; such as the ultrasonic study on the longitudinal sound velocity in electrorheological (ER) suspensions reveals the existence of a serious shear instability at the critical value of applied voltages, the evidence retains the time of about a few milliseconds; moreover, the experiments on ER samples demonstrate that there is a saturation value for the ultrasonic attenuation when the applied voltages arrive a critical value Vc, which resemble to the cases of a lot of superconductors at the critical value of temperature Tc; In the experiments on the I-V characteristic of the two ER samples, we observe that an abrupt change in the I-V characteristics occurs at the critical value Vc of the applied voltages, furthermore, the I-V characteristic of either of the two ER samples is linear after the applied voltages overpass the critical value Vc, just as same as the I-V characteristic of metal conductors. Therefore, it is reasonable to suggest that this anomalous ultrasonic evidence we observed in the experiments corresponds to a structural phase transition from liquidlike phase to metal-solidlike phase in the electrorheological suspensions.
VL  - 8
IS  - 3
ER  -

Copy | Download