High-temperature superconductors from YBCO via 3D printing

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PBF-LB Process is Intended to Enable Multi-Material Processing

Further work is now focusing on addressing this limitation from a process perspective and optimizing the material properties of the fabricated test specimens. Among other approaches, the infiltration of YBCO with silver is being investigated. This is intended to improve mechanical stability, crack resistance, and the possibility of electrical contacting, as explained. The PBF-LB process is to be developed further into a process that allows for multi-material processing, with the silver being integrated in situ. This opens up entirely new possibilities for specifically tailoring material properties within a component. It represents a crucial step toward functionally optimized components. In the future, the component will no longer be dictated by the manufacturing process but solely by its function. Additionally, alternative energy sources, substrates, and heated build platforms are being examined to reduce thermally induced stresses and increase process stability.

The Path to a Superconducting Coil is Thereby Paved

The aim is to further stabilize the superconducting properties while enabling structurally more robust, geometrically complex components with high detail resolution. Based on these insights, the production of a superconducting coil is planned to investigate application-specific requirements for stability, integration, and functionality in greater depth. Such a coil is particularly relevant as a magnetically inductive actuator in the planned Einstein Telescope. Moreover, the results are transferable to other applications involving complex superconducting geometries, such as curved conductor paths for quantum computers. The work was funded under the RWTH research funding program "Exploratory Research Space."

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Date: 08.12.2025

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