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Related Concept Videos

Types Of Superconductors01:28

Types Of Superconductors

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A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
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A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
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Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
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Theory of Metallic Conduction01:17

Theory of Metallic Conduction

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The conduction of free electrons inside a conductor is best described by quantum mechanics. However, a classical model makes predictions close to the results of quantum mechanics. It is called the theory of metallic conduction.
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Related Experiment Video

Updated: May 26, 2025

Radio Frequency Magnetron Sputtering of GdBa2Cu3O7âˆ'ÃŽ ´/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 STO Single-crystal Substrates
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Radio Frequency Magnetron Sputtering of GdBa2Cu3O7âˆ'ÃŽ ´/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 STO Single-crystal Substrates

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Additively-manufactured monocrystalline YBCO superconductor.

Dingchang Zhang1, Cristian Boffo2, David C Dunand3

  • 1Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA. dingchangzhang2020@u.northwestern.edu.

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|February 24, 2025
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Summary

Researchers developed a new method to create complex-shaped, single-crystal superconductors using 3D printing and melt growth. This breakthrough enables high-performance superconducting devices with intricate architectures.

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Area of Science:

  • Materials Science
  • Superconductivity
  • Additive Manufacturing

Background:

  • Single-crystal superconductors like YBa2Cu3O7-x (YBCO) offer high performance but are limited to simple shapes due to brittleness.
  • Additive manufacturing allows complex shapes but typically results in polycrystalline microstructures, compromising superconducting properties.

Purpose of the Study:

  • To develop a method for fabricating complex-shaped, single-crystal YBCO superconductors using additive manufacturing.
  • To achieve high critical current density and critical temperature in 3D-printed, single-crystal YBCO.

Main Methods:

  • 3D ink-printing of precursor powders (Y2O3, BaCO3, CuO) into complex geometries.
  • Reaction-sintering to form polycrystalline YBCO + Y211.
  • Melt growth using a seed to convert the polycrystalline structure to a single crystal, preserving intricate details.

Main Results:

  • Successfully fabricated complex-architectured YBCO objects with single-crystal microstructures.
  • Achieved high critical current density (Jc = 2.1 × 10^4 A·cm^-2 at 77 K) and critical temperature (Tc = 88-89.5 K).
  • Demonstrated preservation of geometric details during the melt growth process, enabling origami-like structures.

Conclusions:

  • Additive manufacturing combined with melt growth is a viable route to produce complex-shaped, single-crystal cuprate superconductors.
  • This approach facilitates the fabrication of advanced superconducting devices for applications in synchrotron radiation and dark matter detection.
  • Opens possibilities for additive manufacturing of other single-crystal functional materials.