Authors: Kim, S.J.; Birnie, D.P.; Aruchamy, A.; Uhlmann, D.R.; El-Bayoumi, O.H.; Suscavage, M.J.
Source: Physica C: 191 (1992) 316-320

Abstract: Phase separation is found for the first time in quenched samples of amorphous Bi₂Sr₂Ca₁Cu₂O₄ (often called '2212' composition). Clear evidence for metastable phase separation is found using X-ray diffraction (XRD), transmission electron microscopy (TEM), and differential thermal analysis (DTA). This has serious implications for possible fabrication of high current density devices from these compositions, especially via glass-ceramic processing routes.