Oxidation rate of nuclear-grade graphite IG-110 in the kinetic regime for VHTR air ingress accident scenarios
Source abstract
Abstract
Abstract The oxidation rates of nuclear-grade graphite IG-110 in the kinetically-controlled temperature regime of graphite oxidation were predicted and compared in Very High Temperature Reactor air ingress accident scenarios. The oxidative mass loss of graphite was measured thermogravimetrically from 873 to 1873 K in 100% air (21 mol%). The activation energy was found to be 222.07 kJ/mol, and the order of reaction with respect to oxygen concentration is 0.76. The surfaces of the samples were characterized by Scanning Electron Microscopy, Energy Dispersive Spectroscopy, Fourier Transform Infrared Spectroscopy and X-ray Photoelectron Spectroscopy before and after oxidation. These results are compared with those available in the literature, and our recently reported results for NBG-18 nuclear-grade graphite using the same technique.
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Research context
OpenAlex topics: Graphite, nuclear technology, radiation studies · Nuclear and radioactivity studies · Radiation Shielding Materials Analysis
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References (28)
Show source-provided references
1. W.E. Windes, T.D. Burchell, R. Bratton, Project #23747, Graphite technology development plan, INL/PLN-2497, 2007.10.2172/968671 ↗
2. Chi · J. Nucl. Mater. · 2008 · 381 · 910.1016/j.jnucmat.2008.07.027 ↗
3. Wang · J. Nucl. Mater. · 2012 · 430 · 22910.1016/j.jnucmat.2012.07.015 ↗
4. Lee · J. Nucl. Mater. · 2013 · 438 · 7710.1016/j.jnucmat.2013.03.002 ↗
5. Zheng · Ceram. Trans. · 2011 · 227 · 25110.1002/9781118144527.ch24 ↗
6. Choi · Nucl. Eng. Des. · 2011 · 241 · 8210.1016/j.nucengdes.2010.10.007 ↗
7. Contescu · Carbon · 2012 · 50 · 335410.1016/j.carbon.2012.01.040 ↗
8. Luo · Nucl. Sci. Eng. · 2005 · 151 · 12110.13182/NSE05-A2534 ↗
9. ASTM D7219-05 · 2005
10. Kane · J. Nucl. Mater. · 2011 · 415 · 18910.1016/j.jnucmat.2011.05.053 ↗
11. Fuller · J. Nucl. Mater. · 1997 · 240 · 24110.1016/S0022-3115(96)00462-X ↗
12. Kim · J. Nucl. Mater. · 2006 · 348 · 17410.1016/j.jnucmat.2005.09.018 ↗
13. IAEA: Thermophysical Properties of Materials for Nuclear Engineering: A Tutorial and Collection of Data, International Atomic Energy Agency, Vienna, 2008.
14. ASTM D7542. Standard Test Method for Air Oxidation of Carbon and Graphite in the Kinetic Regime; 2009.
15. R.E. Smith, Status of Graphite Oxidation Work, INL/EXT-10-18880; May 2010.
16. Luo · Nucl. Eng. Des. · 2004 · 227 · 27310.1016/j.nucengdes.2003.11.004 ↗
17. S.-H. Chi, C.I. Contescu, T.D. Burchell, Density change of an oxidized nuclear graphite with acoustic microscopy and image processing, J. Eng. Gas Turb. Pow. 131; September 2009.10.1115/1.3098415 ↗
18. Wichner · J. Nucl. Mater. · 2009 · 393 · 51810.1016/j.jnucmat.2009.06.032 ↗
19. Kim · Nucl. Eng. Des. · 2008 · 238 · 83710.1016/j.nucengdes.2007.08.002 ↗
20. ASTM C559-90 (Reapproved 2010). Standard test method for bulk density by physical measurements of manufactured carbon and graphite articles.
21. ASTM C1179-91 (Reapproved 2010). Standard test method for oxidation mass loss of manufactured carbon and graphite materials in air.
22. Kim · J. Nucl. Mater. · 2006 · 349 · 18210.1016/j.jnucmat.2005.10.015 ↗
23. El-Genk · J. Nucl. Mater. · 2011 · 411 · 19310.1016/j.jnucmat.2011.01.129 ↗
24. Hinssen · Nucl. Eng. Des. · 2008 · 238 · 301810.1016/j.nucengdes.2008.02.013 ↗
25. Redfern · 1970 · vol. I · 123
26. Smith · 1956
27. Laidler · 1997
28. M. El-Genk, Graphite Oxidation Simulation in HTR Accident Conditions, Project no. 09-830, October 2012.10.2172/1053849 ↗