| Autor: |
Yu, Fei, Thedford, R. Paxton, Tartaglia, Thomas A., Sheth, Sejal S., Freychet, Guillaume, Tait, William R. T., Beaucage, Peter A., Moore, William L., Li, Yuanzhi, Werner, Jörg G., Thom-Levy, Julia, Gruner, Sol M., van Dover, R. Bruce, Wiesner, Ulrich B. |
| Rok vydání: |
2024 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| Popis: |
Solution-based soft matter self-assembly (SA) promises unique materials properties from approaches including additive manufacturing/three-dimensional (3D) printing. We report direct ink writing derived, hierarchically porous transition metal nitride superconductors (SCs) and precursor oxides, structure-directed by Pluronics-family block copolymer (BCP) SA and heat treated in various environments. SCs with periodic lattices on three length scales show record nanoconfinement-induced upper critical field enhancements correlated with BCP molar mass, attaining values of 50 T for NbN and 8.1 T for non-optimized TiN samples, the first mapping of a tailorable SC property onto a macromolecular parameter. They reach surface areas above 120 m$^2$/g, the highest reported for compound SCs to date. Embedded printing enables the first BCP directed mesoporous non-self-supporting helical SCs. Results suggest that additive manufacturing may open pathways to mesoporous SCs with not only a variety of macroscopic form factors but enhanced properties from intrinsic, SA-derived mesostructures with substantial academic and technological promise. |
| Databáze: |
arXiv |
| Externí odkaz: |
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