The influence of the amount of recycled material on microstructure and properties of recycled single-domain YBCO bulks

IF 2.9 Q1 MATERIALS SCIENCE, CERAMICS

Open Ceramics Pub Date : 2025-02-09 DOI:10.1016/j.oceram.2025.100749

Jan Sklenka , Ondřej Jankovský , Tomáš Hlásek , Michal Lojka , David Sedmidubský , Filip Antončík

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Abstract

Novel recycling process based on chemical dissolution was employed to grow REBCO bulks; recycled material obtained by recycling defective YBCO single-domain bulks was added (15 wt.%, 30 wt.% and 45 wt.%) to raw materials to prepare recycled precursor powder. Subsequently, single-domain YBCO bulks were produced using TSMG. Single-domain bulk recycling was chosen, as it represents the most challenging form of waste in the context of REBCO superconductor production. The properties and microstructure of recycled bulks were analyzed in detail. Single-domain YBCO bulks were grown successfully from the recycled precursor powder. Furthermore, it was found that their properties could be tuned by varying the amount of the added recycled powder.This work has demonstrated that up to 30 wt.% of recycled material can be seamlessly incorporated into existing REBCO production processes with only minimal impact and is that even more recycled material can be incorporated as the process matures and scales up.

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再生材料用量对再生单畴YBCO块体微观结构和性能的影响

采用基于化学溶解的新型回收工艺培养REBCO块体；在原料中分别添加15 wt.%、30 wt.%和45 wt.%的不良YBCO单畴块料回收得到的再生材料，制备再生前驱体粉体。随后，使用TSMG生产了单域YBCO块体。选择单畴散装回收，因为它代表了REBCO超导体生产中最具挑战性的废物形式。对回收体的性能和微观结构进行了详细分析。从回收的前驱体粉末中成功地生长出了单畴YBCO块体。此外，还发现可以通过改变再生粉末的添加量来调整其性能。这项工作表明，高达30 wt.%的回收材料可以无缝地融入现有的REBCO生产过程中，而影响最小，并且随着工艺的成熟和规模的扩大，可以融入更多的回收材料。

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