Elastic moduli and step-like elastic anomalies in Ce-substituted Tl0.9Bi0.1Sr2−xCexCa0.9Y0.1Cu1.99Fe0.01O7−δ(x= 0–0.20) superconductors

Ismail, Saidatul Akmar; Ibrahim, Abdel Baset Mohamed El Nabwi Abdel Hamid; Yahya, A. K.

doi:10.1080/01411594.2015.1021349

Cited by 2 publications

(1 citation statement)

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“…The scanning acoustic microscopy developed by Quate et al [3,4] is the one among the non-destructive characterization techniques widely used for determining both the elastic proprieties of a material and their different propagation speed such as longitudinal (V L ), transversal (V T ), and Rayleigh velocities (V R ). Since this technique has been used for characterizing various superconductor compounds [5][6][7][8][9][10], therefore, our study was devoted to carry out the modelling of the acoustic signature V(z) and the reflection coefficient R(θ), in case of porous and non-porous superconductor compound type Bi2212, in order to determine the evolution of the velocity of wave surfaces (Rayleigh velocity) as a function of temperature.…”

Section: Introductionmentioning

confidence: 99%

A Study of Temperature Effect on the Rayleigh Velocity of Superconductor Material Type Bi2212 Using Acoustic Techniques

Sayoud¹,

Chouf²,

Boudour³

2018

Metallofiz. Noveishie Tekhnol.

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In the present work, the effect of the temperature on Rayleigh velocity V R of superconductor material type Bi2212 is studied, focusing on the modelling of both the reflection coefficient R(θ) and the acoustic signature V(z). Consequently, the study allows us to deduct the velocities of the acoustic waves of surface and volume, following their evolution as functions of temperature. The study is carried out in case of porous and non-porous superconductor material type Bi2212 in a temperature range from 10 to 295 K and with work frequency of 600 MHz. This modelling study is based on experimental results obtained on porous and non-porous Bi2212 superconducting materials in the temperature range of 10 to 295 K at a frequency of 600 MHz.

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