Nanotechnology Now – Press Release: FSU engineers improve performance of high-temperature superconductor wires

House > Press > FSU engineers enhance efficiency of high-temperature superconductor wires

Abiola Temidayo Oloye, left, a fifth-year doctoral candidate and the lead author of a study published in Superconductor Science and Technology, at an electron microscope with Fumitake Kametani, an associate professor of mechanical engineering and principal investigator for the study at the FAMU-FSU College of Engineering.

CREDIT
Mark Wallheiser/FAMU-FSU College of Engineering
Abiola Temidayo Oloye, left, a fifth-year doctoral candidate and the lead writer of a research printed in Superconductor Science and Expertise, at an electron microscope with Fumitake Kametani, an affiliate professor of mechanical engineering and principal investigator for the research on the FAMU-FSU Faculty of Engineering.

CREDIT
Mark Wallheiser/FAMU-FSU Faculty of Engineering

Summary:
Florida State College researchers have found a novel means to enhance the efficiency wires used as high-temperature superconductors (HTS), findings which have the potential to energy a brand new technology of particle accelerators.

FSU engineers enhance efficiency of high-temperature superconductor wires


Tallahassee, FL | Posted on April 16th, 2021

A picture of Bi-2212, bismuth-based superconducting wires. (Mark Wallheiser/FAMU-FSU Faculty of Engineering) Researchers used high-resolution scanning electron microscopy to know how processing strategies affect grains in bismuth-based superconducting wires (often called Bi-2212). These grains type the underlying constructions of high-temperature superconductors, and scientists viewing the Bi-2212 grains on the atomic scale efficiently optimized their alignment in a course of that makes the fabric extra environment friendly in carrying a superconducting present, or supercurrent. Their work was printed within the journal Superconductor Science and Expertise.

The researchers discovered that the person grains have a protracted rectangular form, with their longer facet pointing alongside the identical axis because the wire — a so-called biaxial texture. They’re organized in a round sample following the trail of the wire, in order that orientation is simply obvious at very small scale. These two properties collectively give the Bi-2212 grains a quasi-biaxial texture, which turned out to be a really perfect configuration for supercurrent movement.

“By understanding find out how to optimize the construction of those grains, we will fabricate the HTS spherical wires that carry greater currents in essentially the most environment friendly means,” stated Abiola Temidayo Oloye, a doctoral candidate on the FAMU-FSU Faculty of Engineering, researcher on the Nationwide Excessive Magnetic Subject Laboratory (MagLab) and the paper’s lead writer.

Superconductors, not like typical conductors comparable to copper, can transport electrical energy with excellent effectivity as a result of electrons encounter no friction whereas touring within the superconducting wire. Bi-2212 wires belong to a brand new technology of high-field superconductors for constructing superconducting magnets, that are essential instruments for scientific analysis at labs around the globe, together with the Nationwide Excessive Magnetic Subject Laboratory the place the crew of researchers performed their experiments.

Excessive-temperature superconductors like Bi-2212 can conduct present at a lot greater magnetic fields than low-temperature superconductors (LTS) and are a key a part of the designs for much more highly effective particle accelerators on the Massive Hadron Collider on the European Group for Nuclear Analysis (CERN).

“We optimized the Bi-2212 spherical wires to hold extra present, whereas maintaining in thoughts the dimensions distinction between the lab and producer,” Oloye stated. “The method we develop within the lab has to scale to the manufacturing stage for the expertise to be commercially viable and we had been ready to do this within the research.”

Earlier work carried out by Fumitake Kametani, an affiliate professor of mechanical engineering on the FAMU-FSU Faculty of Engineering, MagLab researcher, and principal investigator for the research, confirmed the significance of quasi-biaxial texture in Bi-2212 spherical wires for currents. This paper continued the premise and demonstrated the elements wanted to attain optimum quasi-biaxial texture.

“The microstructural characterization used is exclusive in analyzing the crystal construction of Bi-2212 spherical wires,” Kametani stated.”The approach is normally used for analyzing metals and alloys, and we now have tailored it to develop novel pattern preparation strategies to additional the optimization of Bi-2212 HTS wire applied sciences.”

The massive-picture objective is to have the ability to use Bi-2212 spherical wires in future high-field magnet purposes.

“Since it’s the solely high-temperature superconductor obtainable in spherical wire type, the fabric can extra simply substitute current applied sciences utilizing LTS wires made out of different supplies,” Oloye stated. “Different HTS comparable to REBCO and Bi-2223 are solely obtainable in tape type, which provides a layer of complexity to magnet design.”

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Researchers from the FSU-headquartered Nationwide Excessive Magnetic Subject Laboratory and CERN contributed to this analysis.

The work was funded and supported by the U.S. Division of Vitality, the Nationwide Science Basis and the State of Florida.

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For extra info, please click on right here

Contacts:
Tisha Keller

@floridastate

Copyright © Florida State College

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Issuers of reports releases, not seventh Wave, Inc. or Nanotechnology Now, are solely answerable for the accuracy of the content material.

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