Ultrasonic measurements in sinter-forged high tc superconductor YBa2Cu3O7-δ

M. F. Xu; A. Schenstrom; Y. Hong; D. Bein; Bimal Sarma; M. Levy; K. R. Poeppe1meier; J. B. Ketterson

doi:10.1109/20.92793

Ultrasonic measurements in sinter-forged high t_c superconductor YBa₂Cu₃O_7-_δ

M. F. Xu, A. Schenstrom, Y. Hong, D. Bein, Bimal Sarma, M. Levy, K. R. Poeppe1meier, J. B. Ketterson

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Both ultrasonic attenuation and velocity as a function of temperature from 4.2 K to room temperature were measured on sinter-forged samples of YBa₂Cu₃O_z-_δ which have more than 80% alignment of the c-axis of the grains parallel to the forging axis. Strong anisotropy was found both in the attenuation and in the velocity when propagating sound waves in different directions relative to the forging axis. Hysteresis was observed in the velocity changes.

Original language	English (US)
Pages (from-to)	2414-2417
Number of pages	4
Journal	Ieee Transactions on Magnetics
Volume	25
Issue number	2
DOIs	https://doi.org/10.1109/20.92793
State	Published - Mar 1989

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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title = "Ultrasonic measurements in sinter-forged high tc superconductor YBa2Cu3O7-δ",

abstract = "Both ultrasonic attenuation and velocity as a function of temperature from 4.2 K to room temperature were measured on sinter-forged samples of YBa2Cu3Oz-δ which have more than 80% alignment of the c-axis of the grains parallel to the forging axis. Strong anisotropy was found both in the attenuation and in the velocity when propagating sound waves in different directions relative to the forging axis. Hysteresis was observed in the velocity changes.",

author = "Xu, {M. F.} and A. Schenstrom and Y. Hong and D. Bein and Bimal Sarma and M. Levy and Poeppe1meier, {K. R.} and Ketterson, {J. B.}",

note = "Funding Information: This research was supported under AFOSR Grant No. AFOSR 84-350 at the University of Wisconsin-Milwaukee and under DMR-85-20280 and DMR-86-02857 at Northwestern University. The authors at UWM want to thank Dr. Harold Weinstock for drawing our attension to Ref. 8, and suggesting the measurements of correlating Tc with velocity hysteresis.",

year = "1989",

month = mar,

doi = "10.1109/20.92793",

language = "English (US)",

volume = "25",

pages = "2414--2417",

journal = "Ieee Transactions on Magnetics",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - Ultrasonic measurements in sinter-forged high tc superconductor YBa2Cu3O7-δ

AU - Xu, M. F.

AU - Schenstrom, A.

AU - Hong, Y.

AU - Bein, D.

AU - Sarma, Bimal

AU - Levy, M.

AU - Poeppe1meier, K. R.

AU - Ketterson, J. B.

N1 - Funding Information: This research was supported under AFOSR Grant No. AFOSR 84-350 at the University of Wisconsin-Milwaukee and under DMR-85-20280 and DMR-86-02857 at Northwestern University. The authors at UWM want to thank Dr. Harold Weinstock for drawing our attension to Ref. 8, and suggesting the measurements of correlating Tc with velocity hysteresis.

PY - 1989/3

Y1 - 1989/3

N2 - Both ultrasonic attenuation and velocity as a function of temperature from 4.2 K to room temperature were measured on sinter-forged samples of YBa2Cu3Oz-δ which have more than 80% alignment of the c-axis of the grains parallel to the forging axis. Strong anisotropy was found both in the attenuation and in the velocity when propagating sound waves in different directions relative to the forging axis. Hysteresis was observed in the velocity changes.

AB - Both ultrasonic attenuation and velocity as a function of temperature from 4.2 K to room temperature were measured on sinter-forged samples of YBa2Cu3Oz-δ which have more than 80% alignment of the c-axis of the grains parallel to the forging axis. Strong anisotropy was found both in the attenuation and in the velocity when propagating sound waves in different directions relative to the forging axis. Hysteresis was observed in the velocity changes.

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Ultrasonic measurements in sinter-forged high t_c superconductor YBa₂Cu₃O_7-_δ

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