Cross-medal arrays of Ta-doped rutile titania.

Journal of the American Chemical Society (2009-08-27)
Xianfeng Yang, Jian Chen, Li Gong, Mingmei Wu, Jimmy C Yu
RESUMO

A rutile microstructure with a novel cross-medal morphology was prepared via a hydrothermal method by using a Tantalum foil as both the doping source and the substrate. This rutile cross-medal prefers to grow along an unprecedented preferential orientation of <110> directions from the substrate, which is very different from the traditional c-axis. The new material exhibits highly enhanced field emission (FE) properties.

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Tantalum, foil, 10mm disks, thickness 0.05mm, annealed, 99.9%
Tantalum, foil, 10mm disks, thickness 0.075mm, annealed, 99.9%
Tantalum, foil, 10mm disks, thickness 0.100mm, annealed, 99.9%
Tantalum, foil, 10mm disks, thickness 0.125mm, annealed, 99.9%
Tantalum, foil, 10mm disks, thickness 0.15mm, annealed, 99.9%
Tantalum, foil, 10mm disks, thickness 0.20mm, annealed, 99.9%
Tantalum, foil, 10mm disks, thickness 0.25mm, annealed, 99.9%
Tantalum, foil, 10mm disks, thickness 0.25mm, annealed, 99.99%
Tantalum, foil, 10mm disks, thickness 0.5mm, annealed, 99.9%
Tantalum, foil, 10mm disks, thickness 0.75mm, annealed, 99.9%
Tantalum, foil, 15mm disks, thickness 0.006mm, 99.9%
Tantalum, foil, 15mm disks, thickness 0.0075mm, 99.9%
Tantalum, foil, 15mm disks, thickness 0.009mm, 99.9%
Tantalum, foil, 15mm disks, thickness 0.0125mm, 99.9%
Tantalum, foil, 15mm disks, thickness 0.015mm, 99.9%
Tantalum, foil, 15mm disks, thickness 0.01mm, 99.9%
Tantalum, foil, 15mm disks, thickness 0.025mm, as rolled, 99.9%
Tantalum, foil, 15mm disks, thickness 0.02mm, 99.9%
Tantalum, foil, 15mm disks, thickness 0.034mm, as rolled, 99.9%
Tantalum, foil, 15mm disks, thickness 0.03mm, as rolled, 99.9%
Tantalum, foil, 15mm disks, thickness 0.05mm, annealed, 99.9%
Tantalum, foil, 15mm disks, thickness 0.075mm, annealed, 99.9%
Tantalum, foil, 15mm disks, thickness 0.100mm, annealed, 99.9%
Tantalum, foil, 15mm disks, thickness 0.125mm, annealed, 99.9%
Tantalum, foil, 15mm disks, thickness 0.15mm, annealed, 99.9%
Tantalum, foil, 15mm disks, thickness 0.20mm, annealed, 99.9%
Tantalum, foil, 15mm disks, thickness 0.25mm, annealed, 99.9%
Tantalum, foil, 15mm disks, thickness 0.25mm, annealed, 99.99%
Tantalum, foil, 15mm disks, thickness 0.5mm, annealed, 99.9%
Tantalum, foil, 15mm disks, thickness 0.75mm, annealed, 99.9%

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