Analysis of microstructure of superconductive materials with the use of scanning acoustic microscope

Author

Mayev, R.G. ; Chernozatonskji, L.A. ; Levin, V.M. ; Senjushkina, T.A. ; Bukhny, M.A.

Author_Institution

Inst. of Chem. Phys., Acad. of Sci., Moscow, USSR

fYear

1988

fDate

2-5 Oct 1988

Firstpage

1017

Abstract

The microstructure of ytterbium, holmium, and yttrium ceramics was investigated using a reflection acoustic microscope. Acoustic images of surface and subsurface layers were obtained with a resolution of ⩽1 μm. The interpretation of the images is given. Estimates of Rayleigh wave velocity on the surface of single crystallites were obtained using V(z) curves. The results illustrate the prospects of using acoustic microscopy for the investigation of the microstructure of high-temperature superconductive ceramics and for the measurement of the local elastic properties of such materials

Keywords

acoustic microscopy; ceramics; crystal microstructure; high-temperature superconductors; holmium compounds; ytterbium compounds; yttrium compounds; Ho-Ba-Cu-O; Rayleigh wave velocity; Y-Ba-Cu-O; Yb-Ba-Cu-O; crystallites; high-temperature superconductive ceramics; local elastic properties; microstructure; scanning acoustic microscope; superconductive materials; Acoustic reflection; Ceramics; Crystalline materials; Microscopy; Microstructure; Superconducting materials; Superconductivity; Surface acoustic waves; Ytterbium; Yttrium;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1988. Proceedings., IEEE 1988

Conference_Location

Chicago, IL

Type

conf

DOI

10.1109/ULTSYM.1988.49531

Filename

49531