Aydıner, AlevÇakır, BakiyeSeki, HironoriBaşoğlu, MehmetWongsatanawarid, AtikornMurakami, MasatoYanmaz, Ekrem2025-07-032025-07-03201115571939https://hdl.handle.net/11494/5649In this study, two kinds of melt-processed YBCO samples (Y₁₀₅₀₋₁ andY₁₀₅₀₋₂) grown on a buffer layer of Y₂O₃ addition were fabricated. The compacted powders were located on a crucible with Y₂O₃ powder freely poured and a buffer layer of pressed Y₂O₃ to avoid liquid to spread on the furnace plate. The superconducting transition temperature was determined by a standard four-point method at temperatures between 40 and 100 K. The transition temperatures of Y₁₀₅₀₋₁ and Y₁₀₅₀₋₂ were found to be 91.6 and 92.9 K at zero magnetic fields, respectively. The magnetization measurements were performed using a vibrating sample magnetometer (VSM) on the same system at 5, 40, and 77 K. The critical current densities for Y₁₀₅₀₋₁ and Y₁₀₅₀₋₂ samples were determined to be 6.5×10 3 and 5.6×10 3 A/cm 2 at 77 K in zero magnetic fields, respectively. The trapped magnetic field measurements of the samples were performed by using a Hall probe scanning device and a Fe-Nd-B permanent magnet at 77 K. It was found that the trapped magnetic field of the Y₁₀₅₀₋₁ sample is higher than that of the Y₁₀₅₀₋₂ sample.eninfo:eu-repo/semantics/embargoedAccessArticle2451397140110.1007/s10948-010-0841-62-s2.0-79960700664WOS:000292167000006Q4