Nanostructured samaria-doped ceria with improved grain-boundary conductivity via SPS and post-SPS annealing
The 90 nm grained Ce₀,₈Sm₀,₂O₁,₉ (SDC) ceramic with relative density of 97% was consolidated via SPS at 1050—1150 °C. The total conductivity values of 0,0079—0,0115 S/cm at 600 °C were obtained. A new approach to improve the grain-boundary conductivity of SDC nano-ceramic has been suggested. The app...
Збережено в:
| Дата: | 2013 |
|---|---|
| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут проблем матеріалознавства ім. І.М. Францевича НАН України
2013
|
| Назва видання: | Современные проблемы физического материаловедения |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/114517 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Nanostructured samaria-doped ceria with improved grain-boundary conductivity via SPS and post-SPS annealing / I. Solodkyi, А. Borodianska, O. Vasylkiv // Современные проблемы физического материаловедения: Сб. научн . тр. — К.: ІПМ НАН України, 2013. — Вип. 22. — С. 23-35. — Бібліогр.: 48 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The 90 nm grained Ce₀,₈Sm₀,₂O₁,₉ (SDC) ceramic with relative density of 97% was consolidated via SPS at 1050—1150 °C. The total conductivity values of 0,0079—0,0115 S/cm at 600 °C were obtained. A new approach to improve the grain-boundary conductivity of SDC nano-ceramic has been suggested. The applying of post-SPS low-temperature annealing enabled to decrease the grain-boundary resistance for 1/3, just slight increase in average grain size which avoid increasing of bulk resistance and as a result increase the total conductivity for almost 50%. In addition the SPS followed with post-SPS annealing was shown to be very useful in precise manipulation by the grain size/grain boundary quality/ceramic density, which in turn allow significant property enhancement of nanostructured SDC solid electrolytes. |
|---|