Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > Press > FSU engineers improve performance 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 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

Abstract:
Florida State University researchers have discovered a novel way to improve the performance of electrical wires used as high-temperature superconductors (HTS), findings that have the potential to power a new generation of particle accelerators.

FSU engineers improve performance of high-temperature superconductor wires

Tallahassee, FL | Posted on April 16th, 2021

An image of Bi-2212, bismuth-based superconducting wires. (Mark Wallheiser/FAMU-FSU College of Engineering) Researchers used high-resolution scanning electron microscopy to understand how processing methods influence grains in bismuth-based superconducting wires (known as Bi-2212). Those grains form the underlying structures of high-temperature superconductors, and scientists viewing the Bi-2212 grains at the atomic scale successfully optimized their alignment in a process that makes the material more efficient in carrying a superconducting current, or supercurrent. Their work was published in the journal Superconductor Science and Technology.

The researchers found that the individual grains have a long rectangular shape, with their longer side pointing along the same axis as the wire -- a so-called biaxial texture. They are arranged in a circular pattern following the path of the wire, so that orientation is only apparent at very small scale. Those two properties together give the Bi-2212 grains a quasi-biaxial texture, which turned out to be an ideal configuration for supercurrent flow.

"By understanding how to optimize the structure of these grains, we can fabricate the HTS round wires that carry higher currents in the most efficient way," said Abiola Temidayo Oloye, a doctoral candidate at the FAMU-FSU College of Engineering, researcher at the National High Magnetic Field Laboratory (MagLab) and the paper's lead author.

Superconductors, unlike conventional conductors such as copper, can transport electricity with perfect efficiency because electrons encounter no friction while traveling in the superconducting wire. Bi-2212 wires belong to a new generation of high-field superconductors for building superconducting magnets, which are crucial tools for scientific research at labs around the world, including the National High Magnetic Field Laboratory where the team of researchers conducted their experiments.

High-temperature superconductors like Bi-2212 can conduct current at much higher magnetic fields than low-temperature superconductors (LTS) and are a key part of the designs for even more powerful particle accelerators at the Large Hadron Collider at the European Organization for Nuclear Research (CERN).

"We optimized the Bi-2212 round wires to carry more current, while keeping in mind the scale difference between the lab and manufacturer," Oloye said. "The process we develop in the lab has to scale to the manufacturing level for the technology to be commercially viable and we were able to do that in the study."

Previous work done by Fumitake Kametani, an associate professor of mechanical engineering at the FAMU-FSU College of Engineering, MagLab researcher, and principal investigator for the study, showed the importance of quasi-biaxial texture in Bi-2212 round wires for currents. This paper continued the premise and demonstrated the factors needed to achieve optimal quasi-biaxial texture.

"The microstructural characterization used is unique in analyzing the crystal structure of Bi-2212 round wires," Kametani said."The technique is usually used for analyzing metals and alloys, and we have adapted it to develop novel sample preparation methods to further the optimization of Bi-2212 HTS wire technologies."

The big-picture goal is to be able to use Bi-2212 round wires in future high-field magnet applications.

"Since it is the only high-temperature superconductor available in round wire form, the material can more easily replace existing technologies using LTS wires made from other materials," Oloye said. "Other HTS such as REBCO and Bi-2223 are only available in tape form, which adds a layer of complexity to magnet design."

###

Researchers from the FSU-headquartered National High Magnetic Field Laboratory and CERN contributed to this research.

The work was funded and supported by the U.S. Department of Energy, the National Science Foundation and the State of Florida.

####

For more information, please click here

Contacts:
Tisha Keller


@floridastate

Copyright © Florida State University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

RELATED JOURNAL ARTICLE:

Related News Press

News and information

Daikin Industries becomes OCSiAl shareholder July 27th, 2021

The National Space Society Congratulates Blue Origin and Jeff Bezos for the Spectacular First Crewed Flight of the New Shepard: Well-Tested Suborbital Tourist Rocket Soars to 63 Miles; Opens New Frontiers July 21st, 2021

Unconventional superconductor acts the part of a promising quantum computing platform: If it looks like a duck, swims like a duck and quacks like a duck, then it probably is a duck. July 16th, 2021

Unlocking efficient light-energy conversion with stable coordination nanosheets: Scientists design a high-performance, self-powered, UV photodetector using 2D nanosheets that show record photocurrent stability under air exposure July 16th, 2021

Primers with graphene nanotubes offer a new solution for electrostatic painting of automotive parts July 16th, 2021

Superconductivity

Unconventional superconductor acts the part of a promising quantum computing platform: If it looks like a duck, swims like a duck and quacks like a duck, then it probably is a duck. July 16th, 2021

Possible Futures

Daikin Industries becomes OCSiAl shareholder July 27th, 2021

The National Space Society Congratulates Blue Origin and Jeff Bezos for the Spectacular First Crewed Flight of the New Shepard: Well-Tested Suborbital Tourist Rocket Soars to 63 Miles; Opens New Frontiers July 21st, 2021

Scientists take first snapshots of ultrafast switching in a quantum electronic device: They discover a short-lived state that could lead to faster and more energy-efficient computing devices July 16th, 2021

Researchers discover a new inorganic material with lowest thermal conductivity ever reported July 16th, 2021

Discoveries

Repairs using light signals: FAU research group develops smart microparticle that identifies defective parts in electrical appliances July 16th, 2021

Removing the lead hazard from perovskite solar cells July 16th, 2021

Scientists create rechargeable swimming microrobots using oil and water July 16th, 2021

Scientists take first snapshots of ultrafast switching in a quantum electronic device: They discover a short-lived state that could lead to faster and more energy-efficient computing devices July 16th, 2021

Materials/Metamaterials

Unconventional superconductor acts the part of a promising quantum computing platform: If it looks like a duck, swims like a duck and quacks like a duck, then it probably is a duck. July 16th, 2021

Researchers discover a new inorganic material with lowest thermal conductivity ever reported July 16th, 2021

Primers with graphene nanotubes offer a new solution for electrostatic painting of automotive parts July 16th, 2021

Stress-free path to stress-free metallic films paves the way for next-gen circuitry: Optimized sputtering technique helps minimize stress in tungsten thin films July 4th, 2021

Announcements

Daikin Industries becomes OCSiAl shareholder July 27th, 2021

The National Space Society Congratulates Blue Origin and Jeff Bezos for the Spectacular First Crewed Flight of the New Shepard: Well-Tested Suborbital Tourist Rocket Soars to 63 Miles; Opens New Frontiers July 21st, 2021

Scientists take first snapshots of ultrafast switching in a quantum electronic device: They discover a short-lived state that could lead to faster and more energy-efficient computing devices July 16th, 2021

Researchers discover a new inorganic material with lowest thermal conductivity ever reported July 16th, 2021

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

RUDN University chemists obtained an unusual planar nickel complex exhibiting magnetic properties July 16th, 2021

Repairs using light signals: FAU research group develops smart microparticle that identifies defective parts in electrical appliances July 16th, 2021

Scientists create rechargeable swimming microrobots using oil and water July 16th, 2021

Scientists take first snapshots of ultrafast switching in a quantum electronic device: They discover a short-lived state that could lead to faster and more energy-efficient computing devices July 16th, 2021

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project