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Magnetic materials

A magnetic tongue stud and sensor system for steering wheelchairs

By Eileen De Guire / March 5, 2012

A tongue drive system that fits inside a dental retainer could improve mobility for people with high-level spinal cord injuries. Credit: Maysam Ghovanloo; Georgia Institute of Technology. An innovative alliance between body piercing, orthodontics and electronics could give people with high-level spinal cord injuries much more ability to interact with the world. The “Tongue Drive…

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Historic January 1987: YBCO superconductors discovered and Super Bowl XXI

By Eileen De Guire / January 31, 2012

This timeline of discovery of superconducting materials shows how dramatic the discovery of high-Tc YBCO was. Credit: Wikipedia. Do you recall where you were the weekend before the Super Bowl in 1987? Me neither. No matter, let’s play some Jeopardy, shall we? Me: “Alex, I’ll take Super Bowl Weekends for $100.” Alex: “The answer is…

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Other materials stories that may be of interest

By / January 17, 2012

Check ’em out: Warning on fracture of the alumina-bearing couple delta ceramic liner in hip implants Although the fracture rate of third-generation alumina-bearing couples is low, we believe that it may not be possible to eliminate the actual risk of alumina head fracture. Patients should be informed about the potential for this complication before receiving…

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Optimizing YBCO superconductor magnet design

By Eileen De Guire / November 1, 2011

Snapshot of 3D temperature distribution in YBCO tape during quench show a very high local temperature gradient. A multiscale modeling approach developed at North Carolina State University helps optimize superconductor geometry and properties. Credit: Justin Schwartz, NCSU. Twenty-five years after their discovery, some high-temperature superconductors are starting to be used in applications. Since the beginning,…

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