Properties of boron carbide ceramics made by various methods for use in ITER
| Autor: | A. V. Burdakov, Alexey Semenov, M. V. Ivantsivskiy, S. V. Polosatkin, Maria Klimenko, A. A. Shoshin |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Mechanical Engineering Metallurgy Boron carbide Sintered ceramic 01 natural sciences 010305 fluids & plasmas Outgassing chemistry.chemical_compound Nuclear Energy and Engineering chemistry Impurity visual_art 0103 physical sciences Thermal visual_art.visual_art_medium General Materials Science Ceramic 010306 general physics Chemical composition Civil and Structural Engineering |
| Zdroj: | Fusion Engineering and Design. 146:2007-2010 |
| ISSN: | 0920-3796 |
| DOI: | 10.1016/j.fusengdes.2019.03.088 |
| Popis: | The results of a study of the chemical composition, vacuum and thermal properties of boron carbide ceramics, which is planned to be used in ITER diagnostic ports, are presented. The measured boron carbide content in sintered and hot pressed ceramics is 99,0÷99,7%, they do not contain unauthorized impurities, which in accordance to ITER requirements. The outgassing rate of sintered and hot pressed boron carbide produced by Virial Ltd meets the requirements of the ITER Vacuum Handbook. Sintered ceramic is cheaper than hot pressed, and it is produced in large volumes, which it would be preferable for use in ITER ports, but with its massive use may create a significant gas load on the vacuum system that requires accurate analysis and outgassing tests on all candidated ceramics. |
| Databáze: | OpenAIRE |
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