Title :
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
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;
Conference_Titel :
Ultrasonics Symposium, 1988. Proceedings., IEEE 1988
Conference_Location :
Chicago, IL
DOI :
10.1109/ULTSYM.1988.49531
