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Features of Segregation of the Oxide Phase during Sintering of Tantalum Powders with a Large Specific Surface
- Authors: Orlov V.M.1, Prokhorova T.Y.1, Semushin V.V.1
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Affiliations:
- Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center, Russian Academy of Sciences, 184209, Apatity, Russia
- Issue: Vol 59, No 3 (2023)
- Pages: 318-323
- Section: НОВЫЕ ВЕЩЕСТВА, МАТЕРИАЛЫ И ПОКРЫТИЯ
- URL: https://kazanmedjournal.ru/0044-1856/article/view/663884
- DOI: https://doi.org/10.31857/S0044185623700353
- EDN: https://elibrary.ru/SFHOSW
- ID: 663884
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Abstract
The effect of the oxygen content in tantalum powders of different natures on the leakage currents of capacitor anodes has been examined. It has been established that the leakage current in the anodes from magnesium thermal powders with a highly developed surface depends on the oxygen content in them more weakly than in anodes from powders consisting of fragmented particles, which have a smaller surface area. This is explained by the fact that, during sintering of the anodes from powders with a large specific surface, the majority of the oxygen of the natural oxide interacts with the metal with the formation of Ta2O5 particles outside the tantalum particle volume.
About the authors
V. M. Orlov
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center, Russian Academy of Sciences, 184209, Apatity, Russia
Email: v.orlov@ksc.ru
Россия, 184209, Мурманская обл., Апатиты, Академгородок, 26А
T. Yu. Prokhorova
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center, Russian Academy of Sciences, 184209, Apatity, Russia
Email: v.orlov@ksc.ru
Россия, 184209, Мурманская обл., Апатиты, Академгородок, 26А
V. V. Semushin
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center, Russian Academy of Sciences, 184209, Apatity, Russia
Author for correspondence.
Email: v.orlov@ksc.ru
Россия, 184209, Мурманская обл., Апатиты, Академгородок, 26А
References
- Stratton P., Anderson J., Baylis R. // T.I.C. bulletin. 2018. 172. P. 16–21.
- Knudson D. // T.I.C. bulletin. 2020. № 180. P. 10–15.
- Zednicek T. // T.I.C. bulletin. 2019. № 176. P. 15–21.
- Zednicek T. // T.I.C. bulletin. 2021. № 184. P. 13–15.
- Одынец Л.Л., Орлов В.М. Анодные оксидные пленки. Л.: Наука, 1990. 200 с.
- Balaji T., Purushotham Y., Kumar A. et al. // Metals, Materials and Processes. 2002. № 14. P. 155–162.
- Калинников В.Т., Касиков А.Г., Орлов В.М. и др. // Химическая технология. 2009. Т. 10. № 3. С. 177–182.
- Purushotham Y., Ravindranath K., Kumar A. et al. // International J. Refractory Metals and Hard Materials. 2009. V. 27. № 3. P. 571–576. https://doi.org/10.1016/j.ijrmhm.2008.08.001
- Колосов В.Н., Орлов В.М., Мирошниченко М.Н., Прохорова Т.Ю. // Неорганические материалы. 2015. Т. 51. № 2. С. 157–162. https://doi.org/10.7868/S0002337X15010078
- Sim J.-J., Choi S.-H., Lee Y.-K. et al. // Metals and Materials International. 2021. № 27. P. 1980-1987. https://doi.org/10.1007/s12540-020-00948-7
- Hwang S.-M., Park S.-J., Wang J.-P. et al. // International J. Refractory Metals and Hard Materials. 2021. № 100. P. 105620. https://doi.org/10.1016/j.ijrmhm.2021.105620
- Nersisyan H., Ryu H.S., Lee J.H. et al. // Combustion and Flame. 2020. 219. P. 133–146. https://doi.org/10.1016/j.combustflame.2020.05.019
- Haas H., Schnitter Ch., Sato N. et al. // CARTS Europe 2008 Proceedings, Helsinki, Finland 20–23 October 2008. 2008. P. 157–167.
- Розенберг Л.А., Штельман С.В. // Известия АН СССР. Металлы. 1985. № 4. С. 163–164.
- Freeman Y., Lessner P., Kramer A.J. et al. // J. Electrochemical Society. 2010. V.157. Iss. 7. P. G161–G165. https://doi.org/10.1149/1.3391671
- Орлов В.М., Федорова Л.А. // Известия АН СССР. Металлы. 1978. № 4. С. 67–70.
- Pozdeev-Freeman Y., Rozenberg Y., Gladkikh A. et al. // J. Mater. Sci.: Mater. Electronics. 1998. V. 9. Iss. 4. P. 309–311. https://doi.org/10.1023/A:1008884924762
- Pozdeev-Freeman Y., Gladkikh A. // JEM. 2001. V. 30. Iss. 8. P. 931–936. https://doi.org/10.1007/BF02657713
- Freeman Y. Tantalum and Niobium-Based Capacitors Science, Technology, and Applications. Springer, 2018. 120 p. https://doi.org/10.1007/978-3-319-67870-2.
- Haas H. Magnesium Vapour Reduced Tantalum Powders with Very High Capacitances // CARTS Europe 2004: 18 Annual Passive Components Conference, Nice, France, October 18–21, 2004. P. 5–8.
- Орлов В.М., Крыжанов М.В. Получение нанопорошков тантала магниетермическим восстановлением танталатов // Металлы. 2015. № 4. С. 93–97.
- Орлов В.М., Колосов В.Н., Прохорова Т.Ю., Мирошниченко М.Н. // Цветные металлы. 2011. № 11. С. 30–35.
- Орлов В.М., Осауленко Р.Н., Крыжанов М.В., Лобов Д.В. // Неорганические материалы. 2017. Т. 53. № 4. С. 386–391. https://doi.org/10.7868/S0002337X17040133
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