The development of superconducting
MgB2 wires has reached a level that enables their use in a few niche
applications like for example MRI magnet systems. However, in order to exploit
the full potential of this material, further improvements of its critical current
density (jc) are necessary, especially under working conditions
involving high magnetic fields. This can be achieved by engineering defects at
the nanometer scale or tuning some superconducting parameters of MgB2
by suitable doping. An ideal solution would be to do both simultaneously.
The aim of this project is to
explore the best ways of doping the MgB2 superconductor with carbon
while also creating nanoparticle inclusions in the material in order to boost
its performance under magnetic fields in excess of 2T in view of applications
such as windmill generators or fusion reactors.
During this project you are going to:
superconductors in the form of bulk polycrystalline samples or elongated wires.
-Conduct microstructural characterization
of your samples by means of X-ray diffraction, optical and electron microscopy.
-Perform magnetization measurements
at cryogenic temperatures to evaluate the superconducting performance of your
-Analyze your experimental results
using state of the art theoretical models.
At the end of this project you
will be able to:
-Use various experimental characterization
tools (X-ray diffraction, electron microscopy, magnetization measurements) and
explain their basic principles as well as limitations.
-Critically evaluate your results.
-Draw links between
microstructure and performance.
-Perform an efficient literature
search and compare your own results to published data.
-Present your results to a
scientific audience under conditions equivalent to an international conference.
-Write the draft of a scientific