(Color online) Optical micrographs showing the melting processes of Nd-123 films (a)-(c) under P(O2) = 1% at 997 °C, 1070 °C, and 1132 °C, respectively; (d)-(f) under P(O2) = 21% at 1060 °C, 1106 °C, and 1147 °C, respectively; and (g)-(i) under P(O2) = 100% at 1101 °C, 1142 °C, and 1174 °C, respectively.
(Color online) A schematic illustration of the solute concentration at the melting front and the growth front.
(Color online) Liquidus of RE elements in the Ba3Cu5O melt under various atmospheres. The dashed-dotted curves were plotted using the classical Freundlich model, corresponding to the RE concentration at the melting front. The others are from experimental results (Ref. 21).
(Color online) The super-saturation (σ) of the RE element driving the Nd-422 growth under different atmospheres.
(Color online) δ as a function of ΔT showing that δ for Nd-123 increases with increasing oxygen partial pressure.
The different thermal stabilities of Nd-123 films investigated via in situ microscopy.
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