Elastic behavior of a Y-Ba-Cu-O sample prepared by the MPMG method

R. Ravinder Reddy, Masato Murakami, S. Tanaka, P. Venugopal Reddy

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Ultrasonic velocity measurements have been undertaken by the pulse transmission technique using Y-Ba-Cu-O samples prepared by the melt-powder-melt-growth (MPMG) process over a temperature range of 80-300 K. It has been observed that the sample exhibits a very high value of Young's and rigidity moduli, thereby indicating that the material is an excellent one from the point of view of its mechanical strength. Further, the Young's modulus apart from exhibiting a hump at around 120 K, is found to increase continuously with decreasing temperature. In the superconducting phase, however, the modulus is found to remain almost constant. It has been concluded that the observed elastic behavior, to a large extent, is analogous to that of normal oxide materials. In order to understand how far the experimentally observed behavior deviates at 120 K, the elastic moduli of the sample were also estimated theoretically and compared with the empirical values.

Original languageEnglish
Pages (from-to)137-142
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume257
Issue number1-2
Publication statusPublished - 1996 Jan 20
Externally publishedYes

Fingerprint

Powders
modulus of elasticity
Ultrasonic velocity measurement
Elastic moduli
Rigidity
Oxides
Strength of materials
velocity measurement
rigidity
Temperature
ultrasonics
temperature
oxides
pulses

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Elastic behavior of a Y-Ba-Cu-O sample prepared by the MPMG method. / Ravinder Reddy, R.; Murakami, Masato; Tanaka, S.; Venugopal Reddy, P.

In: Physica C: Superconductivity and its Applications, Vol. 257, No. 1-2, 20.01.1996, p. 137-142.

Research output: Contribution to journalArticle

Ravinder Reddy, R, Murakami, M, Tanaka, S & Venugopal Reddy, P 1996, 'Elastic behavior of a Y-Ba-Cu-O sample prepared by the MPMG method', Physica C: Superconductivity and its Applications, vol. 257, no. 1-2, pp. 137-142.
Ravinder Reddy, R. ; Murakami, Masato ; Tanaka, S. ; Venugopal Reddy, P. / Elastic behavior of a Y-Ba-Cu-O sample prepared by the MPMG method. In: Physica C: Superconductivity and its Applications. 1996 ; Vol. 257, No. 1-2. pp. 137-142.
@article{ad755f85612c48368c9eadbf96bc85f3,
title = "Elastic behavior of a Y-Ba-Cu-O sample prepared by the MPMG method",
abstract = "Ultrasonic velocity measurements have been undertaken by the pulse transmission technique using Y-Ba-Cu-O samples prepared by the melt-powder-melt-growth (MPMG) process over a temperature range of 80-300 K. It has been observed that the sample exhibits a very high value of Young's and rigidity moduli, thereby indicating that the material is an excellent one from the point of view of its mechanical strength. Further, the Young's modulus apart from exhibiting a hump at around 120 K, is found to increase continuously with decreasing temperature. In the superconducting phase, however, the modulus is found to remain almost constant. It has been concluded that the observed elastic behavior, to a large extent, is analogous to that of normal oxide materials. In order to understand how far the experimentally observed behavior deviates at 120 K, the elastic moduli of the sample were also estimated theoretically and compared with the empirical values.",
author = "{Ravinder Reddy}, R. and Masato Murakami and S. Tanaka and {Venugopal Reddy}, P.",
year = "1996",
month = "1",
day = "20",
language = "English",
volume = "257",
pages = "137--142",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "1-2",

}

TY - JOUR

T1 - Elastic behavior of a Y-Ba-Cu-O sample prepared by the MPMG method

AU - Ravinder Reddy, R.

AU - Murakami, Masato

AU - Tanaka, S.

AU - Venugopal Reddy, P.

PY - 1996/1/20

Y1 - 1996/1/20

N2 - Ultrasonic velocity measurements have been undertaken by the pulse transmission technique using Y-Ba-Cu-O samples prepared by the melt-powder-melt-growth (MPMG) process over a temperature range of 80-300 K. It has been observed that the sample exhibits a very high value of Young's and rigidity moduli, thereby indicating that the material is an excellent one from the point of view of its mechanical strength. Further, the Young's modulus apart from exhibiting a hump at around 120 K, is found to increase continuously with decreasing temperature. In the superconducting phase, however, the modulus is found to remain almost constant. It has been concluded that the observed elastic behavior, to a large extent, is analogous to that of normal oxide materials. In order to understand how far the experimentally observed behavior deviates at 120 K, the elastic moduli of the sample were also estimated theoretically and compared with the empirical values.

AB - Ultrasonic velocity measurements have been undertaken by the pulse transmission technique using Y-Ba-Cu-O samples prepared by the melt-powder-melt-growth (MPMG) process over a temperature range of 80-300 K. It has been observed that the sample exhibits a very high value of Young's and rigidity moduli, thereby indicating that the material is an excellent one from the point of view of its mechanical strength. Further, the Young's modulus apart from exhibiting a hump at around 120 K, is found to increase continuously with decreasing temperature. In the superconducting phase, however, the modulus is found to remain almost constant. It has been concluded that the observed elastic behavior, to a large extent, is analogous to that of normal oxide materials. In order to understand how far the experimentally observed behavior deviates at 120 K, the elastic moduli of the sample were also estimated theoretically and compared with the empirical values.

UR - http://www.scopus.com/inward/record.url?scp=0029754575&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029754575&partnerID=8YFLogxK

M3 - Article

VL - 257

SP - 137

EP - 142

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - 1-2

ER -