Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Portable superconductivity systems for small motors: Cambridge University lab achieves a breakthrough for portable superconductivity systems that are applicable for small motors, health care and other uses

Abstract:
Superconductivity, where electrical currents course unhindered through a material, is one of modern physics' most intriguing scientific discoveries. It has many practical uses. Governments, industries, and health care and science centers all make use of superconductivity in applications extending from MRIs in hospitals to the cavities of particle accelerators, where scientists explore the fundamentals of matter. However, practical exploitation of superconductivity also presents many challenges.

Portable superconductivity systems for small motors: Cambridge University lab achieves a breakthrough for portable superconductivity systems that are applicable for small motors, health care and other uses

Washington, DC | Posted on February 8th, 2017

The challenges are perhaps greatest for researchers trying to integrate superconductivity in small, portable systems. Cambridge University academic and superconductivity expert John Durrell and his team demonstrate this week in Applied Physics Letters, from AIP Publishing, that a portable superconducting magnetic system, which is, in essence, a high performance substitute for a conventional permanent magnet, can attain a 3-tesla level for the magnetic field. Durrell said his team's work in large part evolved from the innovative findings of University of Houston physicist Roy Weinstein, who has shown how conventional electromagnets and pulsed field magnetization can be used to activate superconducting magnetic fields which are "captured" and sustained as part of a superconductive arrangement. This avoids the requirement for large expensive superconducting magnets to "activate" such portable systems. Also key, Durrell pointed out, is that his team capitalized on other new and cheaper technologies, especially for cooling.

"For example, the leap with advances in cryogenics, allows you to do interesting things in other areas, too," Durell explained. "There is a lot coming together to make this possible." While large industrial-size superconducting systems do generate a 20-tesla magnetic field, Durrell's 3-tesla magnetic field is new for a portable system.

Durrell and his team were curious about what they could do as they looked at Weinstein's work just a few years earlier. Weinstein demonstrated that with conventional external electromagnetic pulsing of a medium, it was possible to "capture" a magnetic field in a superconductor using a much smaller external magnetic field than previously thought possible. The Weinstein investigation used Yttrium Barium Cuprate doped with uranium and subject to an irradiation treatment. Durrell's team looked for a less expensive material and chose Gadolinium Barium Cuprate, without uranium doping. Difan Zhou, team investigator and lead author, came up with the idea of extending Weinstein's findings, Durrell said, and the research, which took just short of two years to do, has paid off.

"It was a surprise to us that we managed to see in a not-quite-so-cutting-edge-material the same giant flux leap effect as Roy Weinstein demonstrated," Durrell said. "The key thing that made this possible is that we have looked at what Roy has done to get it to work but for this kind of portable system. Before we were using conventional superconducting magnets to charge our bulks. This will make access to these high fields cheaper and more practical."

Advances in cheaper, more efficient cooling -- the cryogenic system -- were also key for Durrell and team's research. For both the magnetic field charging and sustaining phases, it is necessary to keep the superconducting sample cool or else the superconductivity gives out. Recently, the private sector has come up with cryogenic systems that are cheap and light, and Durrell used a cooling system from Sunpower Inc., a U.S. firm. According to Durrell, this lightness and relative low-cost could make portable superconductivity in various products a real possibility.

The total effect of bringing together these new technological opportunities, Durrell pointed out, is "essentially a better, portable permanent magnet -- one with a 3-tesla rather than 1-tesla magnetic field. The obvious interest in that is that you could use that to make a smaller and lighter motor."

Low cost NMR and MRI systems for hospitals are also a strong possibility for use, Durrell explained, as these systems often use large superconducting magnets. Magnetically targeted drug delivery systems in human and veterinary applications may also be enabled.

Durrell and his team are planning for more testing for more magnetic power and overall efficiency. They have received significant support from The Boeing Company for this investigation, and Durrell feels it is a strong example of what a company and an academic lab can do when they team up for basic research.

####

About American Institute of Physics
Applied Physics Letters features concise, rapid reports on significant new findings in applied physics. The journal covers new experimental and theoretical research on applications of physics phenomena related to all branches of science, engineering, and modern technology. See apl.aip.org.

For more information, please click here

Contacts:
AIP Media Line

301-209-3090

Copyright © American Institute of Physics

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

The article, "A portable magnetic field of >3 T generated by the flux jump assisted, pulse field magnetization of bulk superconductors," is authored by Difan Zhou, Mark D. Ainslie, Yunhua Shi, Anthony R. Dennis, Kaiyuan Huang, John R. Hull, David A. Cardwell and John H. Durrell. The article will appear in Applied Physics Letters on Feb. 7, 2017 (DOI: 10.1063/1.4973991). After that date, it can be accessed at:

Related News Press

Magnetism

Leti Coordinating Project to Develop Innovative Drivetrains for 3rd-generation Electric Vehicles: CEA Tech’s Contribution Includes Liten’s Knowhow in Magnetic Materials and Simulation And Leti’s Expertise in Wide-bandgap Semiconductors October 20th, 2017

Fast-moving magnetic particles could enable new form of data storage: Recently discovered phenomenon could provide a way to bypass the limits to Moore's Law October 2nd, 2017

Assembly of nanoparticles proceeds like a zipper: Viruses and nanoparticles can be assembled into processable superlattice wires according to scientists from Aalto University Finland September 25th, 2017

Enhancing the sensing capabilities of diamonds with quantum properties: A simple method can give diamonds the special properties needed for quantum applications such as sensing magnetic fields September 24th, 2017

Superconductivity

Nagoya physicists resolve long-standing mystery of structure-less transition: Nagoya University-led team of physicists use a synchrotron radiation X-ray source to probe a so-called 'structure-less' transition and develop a new understanding of molecular conductors August 21st, 2017

Strange electrons break the crystal symmetry of high-temperature superconductors: Brookhaven Lab scientists discover spontaneous voltage perpendicular to applied current that may help unravel the mystery of high-temperature superconductors July 27th, 2017

Iron secrets behind superconductors unlocked July 7th, 2017

Brookhaven Scientists Study Role of 'Electrolyte Gating' in Functional Oxide Materials July 3rd, 2017

Ultracold atom waves may shed light on rogue ocean killers: Rice quantum experiments probe underlying physics of rogue ocean waves April 27th, 2017

Openings/New facilities/Groundbreaking/Expansion

Aculon Expands NanoProof® Product Line for Electronics Waterproofing Technology: With growing market opportunities Aculon Launches NanoProof® 8 with Push Through Connectivity™ and NanoProof® DAB a syringe application May 30th, 2017

GLOBALFOUNDRIES and Chengdu Partner to Expand FD-SOI Ecosystem in China: More than $100M investment to establish a center of excellence for FDXTM FD-SOI design May 23rd, 2017

GLOBALFOUNDRIES Expands to Meet Worldwide Customer Demand: Company invests for capacity growth in the United States, Germany, China and Singapore February 10th, 2017

Nanomedicine

Spinning strands hint at folding dynamics: Rice University lab uses magnetic beads to model microscopic proteins, polymers October 17th, 2017

Arrowhead Pharmaceuticals to Present Preclinical Data on ARO-AAT at The Liver Meeting(R) October 10th, 2017

Arrowhead to Present at Chardan Gene Therapy Conference October 3rd, 2017

'CRISPR-Gold' fixes Duchenne muscular dystrophy mutation in mice October 3rd, 2017

Discoveries

A step closer to understanding quantum mechanics: Swansea University’s physicists develop a new quantum simulation protocol October 22nd, 2017

Creation of coherent states in molecules by incoherent electrons October 21st, 2017

Novel 'converter' heralds breakthrough in ultra-fast data processing at nanoscale: Invention bagged four patents and could potentially make microprocessor chips work 1,000 times faster October 20th, 2017

Strange but true: turning a material upside down can sometimes make it softer October 20th, 2017

Announcements

A step closer to understanding quantum mechanics: Swansea University’s physicists develop a new quantum simulation protocol October 22nd, 2017

Creation of coherent states in molecules by incoherent electrons October 21st, 2017

Strange but true: turning a material upside down can sometimes make it softer October 20th, 2017

Leti Coordinating Project to Develop Innovative Drivetrains for 3rd-generation Electric Vehicles: CEA Tech’s Contribution Includes Liten’s Knowhow in Magnetic Materials and Simulation And Leti’s Expertise in Wide-bandgap Semiconductors October 20th, 2017

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

A step closer to understanding quantum mechanics: Swansea University’s physicists develop a new quantum simulation protocol October 22nd, 2017

Creation of coherent states in molecules by incoherent electrons October 21st, 2017

Novel 'converter' heralds breakthrough in ultra-fast data processing at nanoscale: Invention bagged four patents and could potentially make microprocessor chips work 1,000 times faster October 20th, 2017

Strange but true: turning a material upside down can sometimes make it softer October 20th, 2017

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project