Abstract
A study of structural and superconducting characteristics of YBa2Cu3O7-x ceramics sintered after and in the course of gamma-irradiation is reported. Using X-difraction and SEM analyses and transport measurements, it has been shown that mainly the subsurface layer of crystallites and intergrain contacts are affected by the irradiation by means of sorption/desorption of oxygen and ordering/disordering in oxygen sublattice, which depends on gamma dose rate and dose. The irradiation provides the sintering process with an additional superthermal energy to form the orthorhombic well-ordered structure and to obtain dense ceramics possessing strong intergrain contacts and improved and stable superconducting properties
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Ibragimova, E.M., Gasanov, E.M., Kalanov, M. et al. Sintering of Textured YBa2Cu3O7-x Under Intensive 60Co Gamma Irradiation. MRS Online Proceedings Library 354, 723–728 (1994). https://doi.org/10.1557/PROC-354-723
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DOI: https://doi.org/10.1557/PROC-354-723