Superconducting properties of sintered ex situ MgB2 tapes through ball milling process as a function of crystallite size in the as-milled and sintered states

lCrystallite growth of MgB2 is appreciable when sintered above 705–735 °C.lTc and jc of MgB2 tapes change remarkably when sintered above 705–735 °C.lMgB2 decomposition is promoted when sintered above 705–735 °C.lTc and jc properties are deduced from the crystallite size in the as-milled state. Ball...

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Veröffentlicht in:	Physica. C, Superconductivity Superconductivity, 2021-04, Vol.583, p.1353838, Article 1353838
Hauptverfasser:	Fujii, Hiroki, Kitaguchi, Hitoshi
Format:	Artikel
Sprache:	eng
Schlagworte:	Ball milling Critical current density Critical field (superconductivity) Critical temperature Crystallite size Crystallites Decomposition Grain size High temperature high-energy ball milling Magnesium compounds MgB2 decomposition Optimization Sintering Sintering (powder metallurgy) Studies Superconducting tapes Superconductivity Temperature
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