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Rapid growth and formation mechanism of ultrafine structural oxide eutectic ceramics by laser direct forming
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10.1063/1.3664108
/content/aip/journal/apl/99/22/10.1063/1.3664108
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/22/10.1063/1.3664108
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Schematic illustration of the experimental setup of LDF for preparing DS Al2O3/YAG eutectic ceramics (a) and the photographs of the DS eutectic rod (b) and large plate (c).

Image of FIG. 2.
FIG. 2.

Typical microstructures of the cross sections of LDF-processed Al2O3/YAG eutectics at different laser scanning rates: (a) 6 mm/min; (b) 24 mm/min. (c) The microstructure of neighbored solidification layer during LDF grown at 12 mm/min. (d) The relationship between the eutectic spacing and laser scanning rate.

Image of FIG. 3.
FIG. 3.

Regular eutectic growth morphologies observed in the LDF-processed Al2O3/YAG eutectic: (a) lamellae structure; (b) rod structure; (c) and (d) showing the transition of lamellae to rods and the transition of irregular “Chinese-script” to regular lamellae, respectively.

Image of FIG. 4.
FIG. 4.

The physical model of the eutectic growth of the faceted Al2O3/YAG based on the atom cluster elementary process.

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/content/aip/journal/apl/99/22/10.1063/1.3664108
2011-12-01
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Rapid growth and formation mechanism of ultrafine structural oxide eutectic ceramics by laser direct forming
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/22/10.1063/1.3664108
10.1063/1.3664108
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