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CSMM Research

MgB₂

Go to more information on MgB₂ In January 2001, Japanese University professor Dr. Akimitsu announced that MgB₂, a compound that had been around for more than 30 years, was superconducting up to 39 Kelvin¹.  This important discovery led to a flurry of research into the characteristics of this superconducting material.  The primary thrust of the investigations from a materials standpoint has fallen on the following topics: fabrication and the improvement of superconducting properties.  

¹ J. Nagamatsu, N. Nakagawa, T. Muranaka, Y. Zenitani, and J. Akimitsu, Nature,  2001, 410, 63.

Nb₃Sn

Go to more about Nb₃Sn Nb₃Sn based superconducting materials are of strong interest as conductor for the High Energy Physics community, for the fabrication of beam steering (dipole) and focusing (quadrupole) magnets for particle accelerators. They also are of interest for high field NMR machines and Fusion reactors, and have possible applications in advanced MRI machines.

Bi-2212

 

Oxipnictides

 

Stability & Loss

Go to more about Stability & Loss AC loss and stability measurements are underway for YBCO and MgB₂ strands at CSMM. External field loss in frequencies up to 200 Hz and field amplitudes of 150 mT are available, with samples up to 20 cm long. Transport losses can also be measured over a wide temperature range and frequencies up to 1000 Hz. Normal zone propagation measurements are being made on YBCO and n-transition stability measurements on MgB₂.

Coils and Cables

Go to more about Coils and Cables The CSMM is involved in the measurement of losses and the associated contact resistances in Nb₃Sn cables.

YBCO Pinning

Go to more about YBCO Pinning The increase of Jc through pinning increases in YBCO is a topic of considerable interest. CSMM has been collaborating with the Superconductivity group in the Propulsion Directorate at AFRL to study pinning. Samples with layer and random distributions of 211, as well as many other dopants, have been used to increase the pinning properties of YBCO, typically at higher fields.

Findings

Go to more concerning CSMM research findings Includes publication and presentation listings, images from current research, and patents developed from CSMM research.

Facilities

Go to descriptions of CSMM's unique research facilities Facilities specific to CSMM focus on two areas, characterization and fabrication. The characterization area mostly is related to low temperature magnetic and electrical measurement. For fabrication, we have powder mixing and chemical facilities, a glove box and encapsulation area, as well as a number of furnaces and a Pulsed Laser Deposition system for thin film fabrication.

SuTC: Superconducting Technology Center

Go to more about the Superconducting Technology Center The Superconducting Technology Center (SuTC), which is part of CSMM, has the aim of encouraging the development of superconducting technology with local (Ohio) and other companies for the development of local high technology industries. As part of the efforts of this center, larger scale testing facilities are available. Conductor development, persistent joint development, and superconducting magnets for Magnetic Resonance Imaging and other specialty applications are being co-developed with local industry.