Structural modifications of the superconducting phases on Bi system by electron beam irradiation
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Superconducting samples of the Bi(Pb)-Sr-Ca-Cu-O system have been irradiated in transmission electron microscopy (TEM) to investigate the effect of a relative high fluence of electrons with 75 and 100 keV energy on the microstructure of the material. The diffraction pattern images show a dramatic change from very uniform lattice spots atab crystalline planes to a circular pattern corresponding to damage and breaking of the materials in very small crystallites.
Key wordsElectron irradiation Bi-Pb-Sr-Ca-Cu-O high-Tc phases phases stability microstructure transformations transmission electron microscopy
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