Growth of dendritic and needle tungsten oxide crystals studied by high-resolution electron microscopy

Needle crystals of β-WO 2.90 and λ-WO 2.72 are produced by heating α-WO 3 powder in a vacuum apparatus under various air pressures. Whether β-or λ-tungsten oxide is produced depends on the specimen temperature rather than on the air pressure. The initial stages of the growing process of dendritic or...

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Veröffentlicht in:Ultramicroscopy 1994, Vol.54 (2), p.201-206
Hauptverfasser: Kumao, Akihiro, Fujita, Yasuhiko, Endoh, Hisamitsu
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Sprache:eng
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