MgB2 Medium-Temperature Superconducting Wire Production at Bruker Energy & Supercon Technologies Exceeds 1000 Meter Unit Length
December 07 2009 - 6:00AM
Business Wire
Bruker Energy and Supercon Technologies, Inc. (BEST) announced
today the completion of its first 1000 meter unit length magnesium
diboride (MgB2) superconducting wire, with a strand Je of up to 91
A/mm² at 4.2K and 5T. The MgB2 wire strand is designed to fit into
a wire-in-channel superconductor design, focusing on applications
in magnetic fields up to 5 Tesla, like clinical or pre-clinical
magnetic resonance imaging (MRI) magnets.
The new MgB2 wire has a twist pitch of 75 mm and a Monel sheath,
and was manufactured within the framework of the R&D
collaboration agreement between BEST and IFW Dresden, based on the
proprietary mechanical alloying route developed by IFW Dresden. The
next step is the assembly of the MgB2 strand into an insulated
wire-in-channel (WIC) superconductor.
Dr. Klaus Schlenga, Chief Technology Officer at BEST, stated:
“This conductor is the first 1000 meter unit length MgB2 wire of
BEST, and therefore a significant step in the development of a long
length MgB2 production at BEST. The wire was manufactured together
with our R&D partner IFW Dresden at BEST’s facilities in Hanau
under industrial production conditions. The collaboration with IFW
Dresden has been extremely fruitful and has achieved the expected
goals.”
Dr. André Aubele, the BEST MgB2 R&D project leader, said:
“We have been able to reach state-of-the-art MgB2 performance with
our 1000 meter binary MgB2 wire by using magnesium and boron raw
materials of industrial quality, which are produced today in
quantities of tons. We believe that we can further increase wire
performance, especially by using special high quality boron raw
material and by optimizing our wire design and production.”
Mr. Reinhard Dietrich, BEST Director of Sales and Marketing for
superconducting materials, commented: “In order to reach comparable
performance and price levels to today’s NbTi wires for MRI systems,
further R&D in terms of increased Je performance and
manufacturing optimization is necessary. Medium-temperature MgB2
superconductors could then be the material of choice for future
generations of liquid cryogen-free MRI magnets operating at
temperatures of 10-20 Kelvin without the need for liquid nitrogen
or liquid helium cryogens.”
About Bruker Energy & Supercon Technologies:
Bruker Energy & Supercon Technologies, Inc. (BEST) is a
subsidiary of Bruker Corporation (NASDAQ: BRKR). BEST is a
world-leading supplier of superconductors as well as
superconducting components and devices for alternative energy,
smart grid, ‘big science’, industrial and healthcare applications.
BEST solutions have the potential to enhance the reliability and
efficiency of electrical power grids and large energy demanding
applications. The product range encompasses the world’s broadest
portfolio of high performance superconductors, superconducting
magnets and devices for industrial and research applications, as
well as accelerator technologies, including turn-key systems. For
more information on BEST, please visit: www.bruker-est.com.
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