The practical applications of the bulk superconductors are determined by the trapped field (TF) and its overall performance. This study aims to demonstrate the effect of various compositions of liquid sources on the trapped field performance of bulk superconductors fabricated using the Top-Seeded Infiltration Growth process (TSIG) in air. We utilized a combination of different liquid sources, BaCuO, YbO: BaCuO: CuO (1:10:6) and ErBaCuO + BaCuO (1:1) to fabricate the ternary bulk (Gd, Y, Er) BaCuO (Gd, Y, Er)-123. The use of these liquid sources demonstrated a pivotal role in fabricating single-domain bulks, showcasing significant variation in the trapped field performance. Specifically, the bulk fabricated using ErBaCuO + BaCuO (1:1) as a liquid source exhibited the best-trapped field performance, showcasing an improvement of 42.92 % compared to the bulk obtained using conventional BaCuO as the liquid source. An enhancement in the critical current density below 77 K was observed in the bulk material produced utilizing BaCuO as the liquid source, with a (3T, 50 K) value reaching 244 kA/cm. The flux pinning force density (F) was analyzed for all samples to understand the pinning mechanisms in ternary (Gd, Y, Er)-123 bulk materials. Furthermore, the maximum trapped field for a 30 mm bulk sample fabricated using a mixture of ErBaCuO + BaCuO (1:1) was measured at 0.336T. These results emphasize the potential for enhancing or controlling the trapped field performance of the TSIG-processed RE-123 bulks by optimizing the liquid source according to the intended applications of the bulk.

中文翻译：

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在顶部种子渗透生长过程中通过不同的液体源增强块状 (Gd、Y、Er) Ba2Cu3O7-y 的俘获磁场

体超导体的实际应用取决于俘获场（TF）及其整体性能。本研究旨在证明液体源的各种成分对使用顶部种子渗透生长工艺（TSIG）在空气中制造的块体超导体的俘获场性能的影响。我们利用不同液体源 BaCuO、YbO: BaCuO: CuO (1:10:6) 和 ErBaCuO + BaCuO (1:1) 的组合来制造三元块体 (Gd, Y, Er) BaCuO (Gd, Y,呃）-123。这些液体源的使用证明了在制造单域块体中的关键作用，显示了捕获场性能的显着变化。具体而言，使用 ErBaCuO + BaCuO (1:1) 作为液体源制备的块体表现出最佳的俘获场性能，与使用传统 BaCuO 作为液体源获得的块体相比，性能提高了 42.92%。在使用 BaCuO 作为液体源生产的块体材料中观察到临界电流密度提高到 77 K 以下，（3T，50 K）值达到 244 kA/cm。对所有样品的通量钉扎力密度 (F) 进行了分析，以了解三元 (Gd、Y、Er)-123 散装材料中的钉扎机制。此外，使用 ErBaCuO + BaCuO (1:1) 的混合物制造的 30 mm 块状样品的最大俘获场在 0.336T 下测量。这些结果强调了通过根据块体的预期应用优化液体源来增强或控制 TSIG 处理的 RE-123 块体的俘获场性能的潜力。