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DEVENDRA KUMAR, N; MISSAK SWARUP RAJU, P; PAVAN KUMAR NAIK, S; RAJASEKHARAN, T; SESHUBAI, V
Physica. C, Superconductivity, 01/2014, Letnik: 496Conference Proceeding, Journal Article
A bulk YBa sub(2)Cu sub(3)O sub(7- )delta(YBCO)/Ag superconducting composite with a homogenous distribution of fine and spherical particles of metallic Ag and Y sub(2)BaCuO sub(5) (Y-211) has been fabricated by employing Directionally Solidified Preform Optimized Infiltration Growth Process (DS-POIGP). The effect of adding Ag into the liquid phase source (YBa sub(2)Cu sub(3)O sub(7 -)delta placed above the Y-211 preform on the microstructures and current densities is investigated. The addition of Ag led to a significant refinement of Y-211 particle size and, hence, enabled the enhancement of current densities at low fields.
