DOI: 10.1143/jjap.6.21. Structure des Oxides de Tantale

10.1143/jjap.6.21

Crossref journal-article

IOP Publishing

Japanese Journal of Applied Physics (266)

Abstract

The structure change of tantalum on heating in air and oxygen was followed by X-ray diffraction. Numerous forms of Ta oxides have been identified. Ta-(O) (solid solution), TaO y , TaO z , δ-form and β-Ta2O5 are formed in air at either atmospheric or reduced pressure. The nitrogen in the air is important for high temperature oxidation of tantalum since nitrides such as Ta2N and δ-TaN were observed. Heating of Ta powder in oxygen causes violent ignition and the α-form which has hitherto been considered to be a high-temperature form of Ta2O5 is obtained. The transformation α→β occurs on heating in oxygen and the inverse transformation β→α occurs on heating in vacuum at a temperature higher than 1300°C. The helium method of density measurement showed that the α-form is an oxide lower than Ta2O5. In the products of thermite reactions of (Ta+CuO) system, the dioxide TaO2 and a new cubic form of Ta oxide were observed.

Bibliography

Terao, N. (1967). Structure des Oxides de Tantale. Japanese Journal of Applied Physics, 6(1), 21.

Authors 1

Nobuzo Terao (first)

References 31 Referenced 105

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Dates

Type	When
Created	19 years, 9 months ago (Nov. 4, 2005, 2:20 a.m.)
Deposited	2 years, 9 months ago (Nov. 28, 2022, 6:01 a.m.)
Indexed	3 weeks, 5 days ago (Aug. 6, 2025, 8:38 a.m.)
Issued	58 years, 8 months ago (Jan. 1, 1967)
Published	58 years, 8 months ago (Jan. 1, 1967)
Published Print	58 years, 8 months ago (Jan. 1, 1967)

Funders 0

None

BibTeX

@article{Terao_1967, title={Structure des Oxides de Tantale}, volume={6}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.6.21}, DOI={10.1143/jjap.6.21}, number={1}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Terao, Nobuzo}, year={1967}, month=jan, pages={21} }

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