Concept

Tantalum pentoxide

Related publications (36)

Effect of Nb Doping on the Microstructure of Sol-Gel-Derived Pzt Thin-Films

Aliovalent Nb doping (less than or equal to 10 at.%) of sol-gel-derived lead zirconate titanate (PZT) thin films was investigated with the intention of improving the ferroelectric properties. Nb addition was found to significantly alter the perovskite crys ...

1995

Electrical Fixing Of Photorefractive Holograms In Sr0.75Ba0.25Nb2O6

Demetri Psaltis

Photorefractive holograms stored in Sr0.75Ba0.25Nb2O6 crystals are electrically fixed at room temperature. The fixed holograms can be read out directly or after a positive-voltage pulse is applied that can dramatically enhance the diffraction efficiency. S ...

1993

New Vaporizing Assembly for Q-Plasma Sources

Ambrogio Fasoli

The design and operation of a new vaporizing assembly used for Q-plasma sources are described in this article. The vaporizing system, consisting of two ovens and an effuser, is used to vaporize and direct atoms onto a hot ionizer plate. The hot plate, whic ...

1993

Morphological and microstructural study of the titanium/iridium oxide (IrO2)-tantalum oxide (Ta2O5) electrode: effect of the preparation temperature

Christos Comninellis

The morphol. examn. and the structural anal. of DSA-O2 electrodes [IrO2-Ta2O5 (70:30 mol%) coating] show that at moderate firing temp. (about 550 Deg), sepn. of phases occurs with the formation of agglomerates of IrO2 crystals and amorphous Ta2O5. At highe ...

1991

Characterization of DSA type oxygen (DSA-O2) evolving electrodes

Christos Comninellis

The morphol. examn. and the structural anal. of the title DSA-O2 electrodes (IrO2-Ta2O5 coating) shows that at moderate firing temp. (.simeq.550 Deg) sepn. of phases occurs with the formation of agglomerates of IrO2 crystals and amorphous Ta2O5. At higher ...

1989

Recent developments in base metal - catalytic coated electrodes

Christos Comninellis

Electrodes of the type base metal (Ti, Zr, and Ta)-catalytic coating (RuO2, IrO2, PtO2, TiO2, ZrO2, and Ta2O5) for O evolution in acidic solns. were prepd. and characterized. The electrodes were tested in 30% H2SO4 solns. at 80 Deg. The susceptibility to t ...

1988

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