Автор |
Ashok B Nawale |
Автор |
Naveen Kulkarni |
Автор |
Soumen Karmakar |
Автор |
A K Das |
Автор |
S V Bhoraskar |
Автор |
V L Mathe |
Дата выпуска |
2010-02-01 |
dc.description |
Nanocrystalline ZrO<sub>2</sub> powder was synthesized by dc transferred arc thermal plasma reactor by homogeneous gas phase condensation mechanism. ZrO<sub>2</sub> is an oxide ceramic with a high melting point, good chemical resistance and high mechanical strength. When doped with certain oxides, ZrO<sub>2</sub> shows high ionic conductivity. ZrO<sub>2</sub> is also recognized as a superior thermal barrier material. Thermal plasma synthesis of oxide nano materials shows pressure dependent crystalline phase and crystallite size. The X-ray diffraction analysis clearly shows that as the ambient oxygen gas pressure increases from 100 Torr to 1000 Torr the abundance of tetragonal phase goes on increasing. The morphology of the as synthesized ZrO<sub>2</sub> powder was found to be spherical and independent on the ambient gas pressure as seen from the Scanning Electron Microscopy studies. The specific surface area of powder was calculated using the nitrogen gas adsorption Brunauer, Emmett, Teller surface area analysis technique and found no much variation. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Копирайт |
© 2010 IOP Publishing Ltd |
Название |
Phase controlled structure formation of the nanocrystalline zirconia using thermal plasma technique |
Тип |
paper |
DOI |
10.1088/1742-6596/208/1/012121 |
Electronic ISSN |
1742-6596 |
Print ISSN |
1742-6588 |
Журнал |
Journal of Physics: Conference Series |
Том |
208 |
Первая страница |
12121 |
Последняя страница |
12125 |
Выпуск |
1 |