New high pressure rare earth tantalates RExTa2O5+1.5x (RE=La, Eu, Yb)

• Published in: Journal of solid state chemistry Vol. 203; pp. 240 - 246
• Main Authors: Zibrov, Igor P., Filonenko, Vladimir P., Zakharov, Nikolai D., Werner, Peter, Drobot, Dmitrii V., Nikishina, Elena E., Lebedeva, Elena N.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Inc 01.07.2013; Elsevier
• Subjects: Amorphous materials; Channels; Electron microscopy; High pressure; Rare earth metals; Rare-earth tantalates; Solid state; Tantalates; Tantalum; Tantalum pentoxide; Unit cell; X-ray diffraction; X-rays; X-ray diffraction; Tantalum pentoxide; Electron microscopy; Rare-earth tantalates; High pressure

Rare earth tantalates La0.075Ta2O5.113, Eu0.089Ta2O5.134 and Yb0.051Ta2O5.077 have been prepared by solid state reaction at P=7.0GPa and T=1050–1100°C and studied by X-ray diffraction, thermal analysis and electron microscopy. Low hydrated amorphous tantalum, lanthanum, europium and ytterbium hydrox...