Elasticity studies of RE-Ba-Cu-O high-Tc superconductors

  title={Elasticity studies of RE-Ba-Cu-O high-Tc superconductors},
  author={Paduru Venugopal Reddy and S. Shekar and Karnati Somaiah},
  journal={Materials Letters},

Chapter 13 – Mechanical properties

Porosity behaviour of ultrasonic velocities in polycrystalline Y - B - C - O

Longitudinal and shear velocities are measured for five polycrystalline Y - B - C - O samples presenting different porosities. The experimental data are compared with the velocity versus porosity

Ion Beam Analysis and Electric Properties of GdBa 2 Cu 3 O 7 − δ Added with Nanosized Ferrites ZnFe 2 O 4 and CoFe 2 O 4

In this study, superconducting samples of type GdBa2Cu3O7−δ added with x wt% (0 ≤ x ≤ 0.4) nanoferrites ZnFe2O4 and CoFe2O4 were prepared by the conventional solid-state reaction technique. The

Investigation of the Mechanical Properties of GdBa2Cu3O7−δ Added with Nanosized Ferrites ZnFe2O4 and CoFe2O4 Using Ultrasonic Measurement

Recently, there is much interest in studying the effect of nanosized ferrites addition on high- Tc superconductors. However, little information is available on the mechanical properties. We have

Superconductivity and mechanical properties of SmBa2Cu3O7−δ added with nano-crystalline ZnFe2O4

The effect of nanosized ZnFe2O4 addition on the physical properties of polycrystalline SmBa2Cu3O7–δ superconductor was studied. Superconducting samples of the type (ZnFe2O4)xSmBa2Cu3O7−δ, x = 0.00,

Study of the Irreversibility Line of GdBa 2Cu 3O7−δ Added with Nanosized Ferrite CoFe 2O4

Abstract(CoFe 2O4) xGdBa 2Cu 3O7−δ superconducting samples were synthesized using a conventional solid-state reaction technique with 0≤x≤0.1 wt%. Characterization of the prepared samples was carried

Ion Beam Analysis and Electric Properties of GdBa2Cu3O7-δ Added with Nanosized Ferrites ZnFe2O4 and CoFe2O4

In this study, superconducting samples of type GdBa2Cu3O7-δ added with x wt% (0 ≤ x ≤ 0.4) nanoferrites ZnFe2O4 and CoFe2O4 were prepared by the conventional solid-state reaction technique. The




Longitudinal and shear wave velocities of lead-substituted Bi-Sr-Ca-Cu-O (2223) super-conducting materials prepared by the three-step matrix solid state reaction method have been measured by the

Elastic behaviour under pressure of high-T c superconductors RBa2Cu3O7-x (R = Y, Gd and Eu)

Abstract The effects of hydrostatic pressure on the velocities of longitudinal and shear ultrasonic waves have been measured in YBa2Cu3O7-x, GdBa2Cu3O7-x and EuBa2Cu7O7-x. Measurements have been made

Elastic constants of single-phase Bi2Sr2CaCu2O8+y superconductor

The elastic constants of Bi2Sr2CaCu2O8+y ceramic have been determined for the first time from ultrasonic velocity measurements. Near 200 K both longitudinal and transverse wave velocities show

Elastic constants and Debye temperature of polycrystalline Y 1 Ba 2 Cu 3 O 7− x

Using ultrasonic methods, the quasi-isotropic elastic stiffnesses of void-containing Y1Ba2Cu3O7−x were determined By a composite-material model, these were corrected to the void-free state. From

Possible highTc superconductivity in the Ba−La−Cu−O system

Metallic, oxygen-deficient compounds in the Ba−La−Cu−O system, with the composition BaxLa5−xCu5O5(3−y) have been prepared in polycrystalline form. Samples withx=1 and 0.75,y>0, annealed below 900°C

Physical properties and atomic arrangements in crystals

A survey is given of the relation between four physical properties of crystals and their structural characters. The properties discussed are the magnetic, optical, piezoelectric and elastic. The

Flux motion, proximity effect, and critical current density in YBa2Cu3O7- delta /silver composites.

It is suggested that the proximity junctions superconductor--normal-metal--superconductor built up by intergranular silver, and not flux pinning, are responsible for the increase of {ital J}{sub CT}.

High-Temperature Elastic Behaviour of Mn-Mg Mixed Ferrites

The temperature dependence of the Young modulus and the modulus of rigidity for polycrystalline mixed Mn-Mg ferrites having different compositions is studied by the composite piezoelectric oscillator

Velocity of compressional waves in various minerals at pressures to 10 kilobars

The velocity of compressional waves in several minerals, as a function of pressure to 10 kb, has been measured. Data for single-crystal microcline suggest that measurements of elastic constants