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Doctoral thesis
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A Design-of-Experiment approach towards high performance MgB2 via a novel rapid synthesis process

ContributorsMatera, Davide
Defense date2020-12-16
Abstract

The MgB2 superconductor has significant potential for practical applications. The main points of strength are its critical temperature close to 40 K, which may allow operating in cryogen-free environments, the low cost of precursor materials, and the ease of manufacture. However, a large gap is present between the upper-critical-field, Bc2, values measured in MgB2 polycrystalline bulk superconductors and those of thin films, where values as high as ≳ 50 T have been achieved at 4.2 K. Filling this gap would unlock the potential of MgB2 for magnet applications. This thesis presents a systematic study of the effects of the synthesis conditions on Bc2 of binary and C-doped bulk samples. Guided by the Design of Experiment (DoE) statistical approach, we employed a novel rapid-synthesis route and successfully identified a broad region of the synthesis parameters that maximizes Bc2 up to record-high values.

eng
Keywords
  • Superconductivity
  • MgB2
  • Bc2
  • Hc2
  • DoE
  • Design of Experiment
Research group
Citation (ISO format)
MATERA, Davide. A Design-of-Experiment approach towards high performance MgB2 via a novel rapid synthesis process. 2020. doi: 10.13097/archive-ouverte/unige:153770
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Creation06/17/2021 9:54:00 PM
First validation06/17/2021 9:54:00 PM
Update time03/16/2023 1:01:01 AM
Status update03/16/2023 1:01:00 AM
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