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Title: Investigation of the Mechanical Properties of GdBa{sub 2}Cu{sub 3}O{sub 7−δ} Added with Nanosized Ferrites ZnFe{sub 2}O{sub 4} and CoFe{sub 2}O{sub 4} Using Ultrasonic Measurement

Abstract

Recently, there is much interest in studying the effect of nanosized ferrites addition on high- T{sub c} superconductors. However, little information is available on the mechanical properties. We have investigated the effect of (CoFe{sub 2}O{sub 4}){sub x} and (ZnFe{sub 2}O{sub 4}){sub x} nanosized ferrites with 0.01 ≤ x ≤ 0.40 on the mechanical properties of the high- T{sub c} superconducting compound GdBa{sub 2}Cu{sub 3}O{sub 7−δ} (Gd-123) prepared by the conventional solid-state reaction technique. Elastic parameters including shear modulus (G), bulk modulus (B), and Young’s modulus (E) of all samples were inspected using ultrasonic measurements and compared with Vickers microhardness results. Furthermore, the porosity of the samples was investigated and correlated to Young’s modulus, which was corrected to zero porosity using different models. The corrected values were correlated with Vickers microhardness. Moreover, the Debye temperature (θ{sub D}) and the electron-phonon coupling factor (λ) were also determined as a function of x. We observed that the different nanoparticles addition has influenced the Gd-123 compound differently. For (ZnFe{sub 2}O{sub 4}){sub x} added samples, the mechanical properties and Debye temperature improved up to x = 0.06, then deteriorated with further addition. However, (CoFe{sub 2}O{sub 4}){sub x} addition improved the mechanical properties for all samplesmore » with x up to 0.40. We found that the proportionality constant between the corrected values of E and H{sub v} and G and H{sub v} are strongly dependent on the porosity corrections and the kind of superconducting material. This indicates that the widely used formula E = 81.96 H{sub v} may not be valid for all types of superconducting materials.« less

Authors:
;  [1];  [2];  [1]
  1. Beirut Arab University (BAU), Physics Department, Faculty of Science (Lebanon)
  2. Alexandria University, Physics Department, Faculty of Science (Egypt)
Publication Date:
OSTI Identifier:
22771761
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 30; Journal Issue: 12; Other Information: Copyright (c) 2017 Springer Science+Business Media, LLC, part of Springer Nature; Article Copyright (c) 2016 Springer Science+Business Media New York; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1557-1939
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COBALT OXIDES; DEBYE TEMPERATURE; ELECTRON-PHONON COUPLING; FERRITES; MICROHARDNESS; NANOPARTICLES; NANOSTRUCTURES; POROSITY; SHEAR; SUPERCONDUCTORS; ULTRASONIC WAVES; YOUNG MODULUS

Citation Formats

Malaeb, Walid, Basma, Hadi, Barakat, M. ME., and Awad, Ramadan. Investigation of the Mechanical Properties of GdBa{sub 2}Cu{sub 3}O{sub 7−δ} Added with Nanosized Ferrites ZnFe{sub 2}O{sub 4} and CoFe{sub 2}O{sub 4} Using Ultrasonic Measurement. United States: N. p., 2017. Web. doi:10.1007/S10948-016-3863-X.
Malaeb, Walid, Basma, Hadi, Barakat, M. ME., & Awad, Ramadan. Investigation of the Mechanical Properties of GdBa{sub 2}Cu{sub 3}O{sub 7−δ} Added with Nanosized Ferrites ZnFe{sub 2}O{sub 4} and CoFe{sub 2}O{sub 4} Using Ultrasonic Measurement. United States. https://doi.org/10.1007/S10948-016-3863-X
Malaeb, Walid, Basma, Hadi, Barakat, M. ME., and Awad, Ramadan. Fri . "Investigation of the Mechanical Properties of GdBa{sub 2}Cu{sub 3}O{sub 7−δ} Added with Nanosized Ferrites ZnFe{sub 2}O{sub 4} and CoFe{sub 2}O{sub 4} Using Ultrasonic Measurement". United States. https://doi.org/10.1007/S10948-016-3863-X.
@article{osti_22771761,
title = {Investigation of the Mechanical Properties of GdBa{sub 2}Cu{sub 3}O{sub 7−δ} Added with Nanosized Ferrites ZnFe{sub 2}O{sub 4} and CoFe{sub 2}O{sub 4} Using Ultrasonic Measurement},
author = {Malaeb, Walid and Basma, Hadi and Barakat, M. ME. and Awad, Ramadan},
abstractNote = {Recently, there is much interest in studying the effect of nanosized ferrites addition on high- T{sub c} superconductors. However, little information is available on the mechanical properties. We have investigated the effect of (CoFe{sub 2}O{sub 4}){sub x} and (ZnFe{sub 2}O{sub 4}){sub x} nanosized ferrites with 0.01 ≤ x ≤ 0.40 on the mechanical properties of the high- T{sub c} superconducting compound GdBa{sub 2}Cu{sub 3}O{sub 7−δ} (Gd-123) prepared by the conventional solid-state reaction technique. Elastic parameters including shear modulus (G), bulk modulus (B), and Young’s modulus (E) of all samples were inspected using ultrasonic measurements and compared with Vickers microhardness results. Furthermore, the porosity of the samples was investigated and correlated to Young’s modulus, which was corrected to zero porosity using different models. The corrected values were correlated with Vickers microhardness. Moreover, the Debye temperature (θ{sub D}) and the electron-phonon coupling factor (λ) were also determined as a function of x. We observed that the different nanoparticles addition has influenced the Gd-123 compound differently. For (ZnFe{sub 2}O{sub 4}){sub x} added samples, the mechanical properties and Debye temperature improved up to x = 0.06, then deteriorated with further addition. However, (CoFe{sub 2}O{sub 4}){sub x} addition improved the mechanical properties for all samples with x up to 0.40. We found that the proportionality constant between the corrected values of E and H{sub v} and G and H{sub v} are strongly dependent on the porosity corrections and the kind of superconducting material. This indicates that the widely used formula E = 81.96 H{sub v} may not be valid for all types of superconducting materials.},
doi = {10.1007/S10948-016-3863-X},
url = {https://www.osti.gov/biblio/22771761}, journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 12,
volume = 30,
place = {United States},
year = {2017},
month = {12}
}