Research output: Contribution to Journal/Magazine › Journal article › peer-review
Communication—formation of a superconducting MgB2-containing coating on niobium by plasma electrolytic oxidation. / Aliasghari, S.; Skeldon, P.; Zhou, X. et al.
In: ECS Journal of Solid State Science and Technology, Vol. 8, No. 3, 16.03.2019, p. N39-N41.Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Communication—formation of a superconducting MgB2-containing coating on niobium by plasma electrolytic oxidation
AU - Aliasghari, S.
AU - Skeldon, P.
AU - Zhou, X.
AU - Valizadeh, R.
AU - Junginger, T.
AU - Stenning, G.B.G.
AU - Burt, G.
PY - 2019/3/16
Y1 - 2019/3/16
N2 - The feasibility of generating superconducting coatings on niobium using plasma electrolytic oxidation (PEO) is demonstrated. A silicate-phosphate electrolyte was employed containing MgB2 particles. The coatings were examined by scanning electron microscopy and X-ray diffraction. The coatings contained crystalline Nb2O5, SiO2-rich amorphous material, and incorporated MgB2. The magnetic moment-temperature curve determined using a superconducting quantum interference device (SQUID) magnetometer revealed a transition to the superconducting state at 39 K, characteristic of MgB2. The increasing negative magnetic moment of MgB2 below 39 K is proposed to be due to differences in the critical fields of individual MgB2 clusters.
AB - The feasibility of generating superconducting coatings on niobium using plasma electrolytic oxidation (PEO) is demonstrated. A silicate-phosphate electrolyte was employed containing MgB2 particles. The coatings were examined by scanning electron microscopy and X-ray diffraction. The coatings contained crystalline Nb2O5, SiO2-rich amorphous material, and incorporated MgB2. The magnetic moment-temperature curve determined using a superconducting quantum interference device (SQUID) magnetometer revealed a transition to the superconducting state at 39 K, characteristic of MgB2. The increasing negative magnetic moment of MgB2 below 39 K is proposed to be due to differences in the critical fields of individual MgB2 clusters.
KW - Amorphous materials
KW - Coatings
KW - Electrolysis
KW - Electrolytes
KW - Magnesium compounds
KW - Magnetic moments
KW - Niobium
KW - Niobium oxide
KW - Oxidation
KW - Quantum interference devices
KW - Scanning electron microscopy
KW - Silica
KW - Silicates
KW - SQUIDs
KW - Critical fields
KW - Phosphate electrolytes
KW - Plasma electrolytic oxidation
KW - Superconducting coatings
KW - Superconducting state
KW - Temperature curves
KW - Boron compounds
U2 - 10.1149/2.0071903jss
DO - 10.1149/2.0071903jss
M3 - Journal article
VL - 8
SP - N39-N41
JO - ECS Journal of Solid State Science and Technology
JF - ECS Journal of Solid State Science and Technology
SN - 2162-8769
IS - 3
ER -