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Öğe CRYSTALLIZATION KINETICS FOR MELT QUENCHED BI1.4TL0.6SR2CA2CU3O10+Y SUPERCONDUCTING GLASS-CERAMIC(Elsevier Science Bv, 1994) YAKINCI, ME; AKSOY, I; OZDES, AA glass in the BiSrCaCuO (BSCCO) system with nominal Bi1.4T0.6Sr2Ca2Cu3O10+y composition, prepared by the melt-quench (glass) method. Using an analysis already developed for non-isothermal crystallisation studies, based on DTA, TGA and DSC, information on some aspects of crystallisation has been obtained. The result obtained indicated that substitution of the Tl for Bi increased the activation energy for crystallisation and enhanced the Superconducting phase formation largely.Öğe THE IR-SPECTRA OF GLASS-CERAMIC BI2SR2CA2CU3O10+Y SUPERCONDUCTOR SYSTEM(Elsevier Science Bv, 1994) ULUG, B; YAKINCI, MEA glass in the BSCCO system with nominal Bi2Sr2Ca2Cu3O10+y composition was prepared by the melt-quenching (glass) method and then converted into glass-ceramic form. The IR properties of both glass and glass-ceramic and impurities obtained in glass-ceramic system were analysed. Features of crystallisation, active phonon modes of the system and the impurities have been evidenced in the IR spectra of the system.