Features of Segregation of the Oxide Phase during Sintering of Tantalum Powders with a Large Specific Surface

Capa

Citar

Texto integral

Acesso aberto Acesso aberto
Acesso é fechado Acesso está concedido
Acesso é fechado Somente assinantes

Resumo

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.

Sobre autores

V. 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. 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. Semushin

Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center, Russian Academy of Sciences, 184209, Apatity, Russia

Autor responsável pela correspondência
Email: v.orlov@ksc.ru
Россия, 184209, Мурманская обл., Апатиты, Академгородок, 26А

Bibliografia

  1. Stratton P., Anderson J., Baylis R. // T.I.C. bulletin. 2018. 172. P. 16–21.
  2. Knudson D. // T.I.C. bulletin. 2020. № 180. P. 10–15.
  3. Zednicek T. // T.I.C. bulletin. 2019. № 176. P. 15–21.
  4. Zednicek T. // T.I.C. bulletin. 2021. № 184. P. 13–15.
  5. Одынец Л.Л., Орлов В.М. Анодные оксидные пленки. Л.: Наука, 1990. 200 с.
  6. Balaji T., Purushotham Y., Kumar A. et al. // Metals, Materials and Processes. 2002. № 14. P. 155–162.
  7. Калинников В.Т., Касиков А.Г., Орлов В.М. и др. // Химическая технология. 2009. Т. 10. № 3. С. 177–182.
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. Haas H., Schnitter Ch., Sato N. et al. // CARTS Europe 2008 Proceedings, Helsinki, Finland 20–23 October 2008. 2008. P. 157–167.
  14. Розенберг Л.А., Штельман С.В. // Известия АН СССР. Металлы. 1985. № 4. С. 163–164.
  15. 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
  16. Орлов В.М., Федорова Л.А. // Известия АН СССР. Металлы. 1978. № 4. С. 67–70.
  17. 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
  18. Pozdeev-Freeman Y., Gladkikh A. // JEM. 2001. V. 30. Iss. 8. P. 931–936. https://doi.org/10.1007/BF02657713
  19. 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.
  20. 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.
  21. Орлов В.М., Крыжанов М.В. Получение нанопорошков тантала магниетермическим восстановлением танталатов // Металлы. 2015. № 4. С. 93–97.
  22. Орлов В.М., Колосов В.Н., Прохорова Т.Ю., Мирошниченко М.Н. // Цветные металлы. 2011. № 11. С. 30–35.
  23. 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

Arquivos suplementares

Arquivos suplementares
Ação
1. JATS XML
Baixar
2.

Baixar (37KB)
Metadados
3.

Baixar (67KB)
Metadados
4.

Baixar (194KB)
Metadados
5.

Baixar (41KB)
Metadados
6.

Baixar (3MB)
Metadados

Declaração de direitos autorais © В.М. Орлов, Т.Ю. Прохорова, В.В. Семушин, 2023