Construction materials development in sulfur–iodine thermochemical water-splitting process for hydrogen production
| Autor: | Robert Buckingham, Ajit K. Roy, Benjamin Russ, Bunsen Wong, G. E. Besenbruch, Ancila V. Kaiparambil, Radhakrishnan Santhanakrishnan, Lloyd C. Brown |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Zirconium
Materials science Renewable Energy Sustainability and the Environment Metallurgy Refractory metals Energy Engineering and Power Technology chemistry.chemical_element Condensed Matter Physics Corrosion Sulfur–iodine cycle Fuel Technology chemistry visual_art visual_art.visual_art_medium Water splitting Ceramic Thermochemical cycle Dissolution |
| Zdroj: | International Journal of Hydrogen Energy. 32:497-504 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2006.06.058 |
| Popis: | The sulfur iodine (SI) water splitting cycle for hydrogen production consists of three coupled chemical reactions, which includes the generation and decomposition of HI. The HI x environment is extremely corrosive and the severity increases with temperature. Immersion coupon corrosion screening tests were performed on materials selected from four classes of corrosion resistant materials: refractory metal, reactive metal, superalloys and ceramics. Of the materials tested, only Ta and Nb-based refractory metals and ceramic mullite can tolerate the extreme HI x environment. Severe pitting and dissolution was observed in two different reactive metal zirconium. A nickel based superalloy, C-276, also showed severe dissolution in HI x solution. The materials which showed good corrosion behavior will undergo further long-term immersion testing to assess performance. In addition, C-ring, U-bend and DCB test samples fabricated from qualified materials will be tested under stress corrosion conditions to investigate their crack initiation and growth properties. |
| Databáze: | OpenAIRE |
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