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Unexpected metastable transition in high superheating state
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10.1063/1.4766446
/content/aip/journal/jap/112/10/10.1063/1.4766446
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/10/10.1063/1.4766446

Figures

Image of FIG. 1.
FIG. 1.

Morphologies of the α/LAO thin film captured during the melting process at: (a) 965 °C, (b) 1000 °C, (c) 1065 °C, (d) 1080 °C, (e) 1108 °C, (f)1180 °C.

Image of FIG. 2.
FIG. 2.

The optical micrographs of the unknown square grains resulted from α/LAO thin film, captured after the melting process.

Image of FIG. 3.
FIG. 3.

SEM micrograph and EDS spectrum of the YBCO/LAO film after melting. (a) the surface morphology of the obtained grains: the typical square grains are substance directly nucleated from α matrix, while the one at the lower right corner without a regular square shape is the γ phase nucleated from β phase; (b) the EDS mapping result of the whole region indicates those grains are of the same composition; (c) the EDS result of the region spectrum 1 shows the square grain consists of Y and O elements.

Image of FIG. 4.
FIG. 4.

An illustration of the driving force for the growth of β (Y211 in this work) and γ (Y200 in this work). Similar to undercooling, the superheating status can be represented by the extended parts of the liquidus curve, which equilibrates with the α phase, into β+L region.

Tables

Generic image for table
Table I.

Comparison of the lattice mismatch of β/substrate and γ/substrate.

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/content/aip/journal/jap/112/10/10.1063/1.4766446
2012-11-19
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Unexpected metastable transition in high superheating state
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/10/10.1063/1.4766446
10.1063/1.4766446
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