JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Thermal Emissivity of Nuclear Graphite as a Function of its Oxidation Degree (3): Structural Study using Scanning Electron Microscope and X-Ray Diffraction
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
  • Journal title : Carbon letters
  • Volume 12, Issue 1,  2011, pp.8-15
  • Publisher : Korean Carbon Society
  • DOI : 10.5714/CL.2011.12.1.008
 Title & Authors
Thermal Emissivity of Nuclear Graphite as a Function of its Oxidation Degree (3): Structural Study using Scanning Electron Microscope and X-Ray Diffraction
Seo, Seung-Kuk; Roh, Jae-Seung; Kim, Suk-Hwan; Chi, Se-Hwan; Kim, Eung-Seon;
  PDF(new window)
 Abstract
We study the relationships between the thermal emissivity of nuclear graphites (IG-110, PCEA, IG-430 and NBG-18) and their surface structural change by oxidation using scanning electron microscope and X-ray diffraction (XRD). The nonoxidized (0% weight loss) specimen had the surface covered with glassy materials and the 5% and 10% oxidized specimens, however, showed high roughness of the surface without glassy materials. During oxidation the binder materials were oxidized first and then graphitic filler particles were subsequently oxidized. The 002 interlayer spacings of the non-oxidized and the oxidized specimens were about . There was a slight change in crystallite size after oxidation compared to the nonoxidized specimens. It was difficult to find a relationship between the thermal emissivity and the structural parameters obtained from the XRD analysis.
 Keywords
Nuclear graphite;Oxidation;Emissivity;Microstructure;Structural parameters;
 Language
English
 Cited by
1.
Investigation of the effects of graphite flake alignment on thermal emissivity by applying a magnetic field during coating of an aluminum sheet, Research on Chemical Intermediates, 2014, 40, 7, 2439  crossref(new windwow)
 References
1.
Marsden BJ. IAEA Technical Committee Meeting on Gas Turbine Power Conversion Systems for Modular HTGRs, Palo Alto, CA, 174 (2000).

2.
Mitchell BC, Smart J, Fok SL, Marsden BJ. J Nucl Mater, 322, 126 (2003). crossref(new window)

3.
Kurumada A, Oku T, Harada K, Kawamata K, Sato S, Hiraoka T, McEnaney B. Carbon, 35, 1157 (1997). crossref(new window)

4.
McNaught AD, Wilkinson A, International Union of Pure and Applied Chemistry. Compendium of Chemical Terminology: IUPAC Recommendations. 2nd ed., Blackwell Science, Malden (1997).

5.
Samoilov VM, Shilo DV. Inorg Mater, 41, 1283 (2005). crossref(new window)

6.
Glasstone S, Sesonske A. Nuclear Reactor Engineering. 4th ed., Chapman & Hall, New York (1994).

7.
Especel D, Mattei S. Infrared Phys Technol, 37, 777 (1996). crossref(new window)

8.
Yi J, He X, Sun Y, Li Y. Appl Surf Sci, 253, 4361 (2007). crossref(new window)

9.
Bellayer S, Gilman JW, Rahatekar SS, Bourbigot S, Flambard X, Hanssen LM, Guo H, Kumar S. Carbon, 45, 2417 (2007). crossref(new window)

10.
Fuller EL, Okoh JM. J Nucl Mater, 240, 241 (1997). crossref(new window)

11.
Zueco J, Alhama F. J Quant Spectrosc Radiat Transfer, 101, 73 (2006). crossref(new window)

12.
Ball M, Pinkerton H, Harris AJL. J Volcanol Geoth Res, 173, 148 (2008). crossref(new window)

13.
Ruland W. Acta Cryst, 18, 992 (1965). crossref(new window)

14.
Franklin RE. Acta Cryst, 4, 253 (1951). crossref(new window)

15.
Thrower PA, ed. Chemistry and Physics of Carbon, Vol. 22, Marcel Dekker, New York, 133 (1999).

16.
Walker P, Jr., ed. Chemistry and Physics of Carbon, Vol. 1, Marcel Dekker, New York, 342 (1965).

17.
Reynolds WN. Physical Pproperties of Graphite, Elsevier Publishing, New York (1968).

18.
Seo SK, Roh JS, Kim ES, Chi SH, Kim SH, Lee SW. Carbon Lett, 10, 225 (2009). crossref(new window)

19.
Seo SK, Roh JS, Kim ES, Chi SH, Kim SH, Lee SW. Carbon Lett, 10, 300 (2009). crossref(new window)

20.
Xiaowei L, Jean-Charles R, Suyuan Y. Nucl Eng Des, 227, 273 (2004). crossref(new window)

21.
Kim ES, Kim YW. Transactions of the Korean Nuclear Society Autumn Meeting, Pyeongchang, Korea (2007).

22.
Chi SH, Kim GC. J Nucl Mater, 381, 9 (2008). crossref(new window)

23.
Biscoe J, Warren BE. J Appl Phys, 13, 364 (1942). crossref(new window)

24.
Kercher AK, Nagle DC. Carbon, 41, 15 (2003). crossref(new window)

25.
Nightingale RE, ed. Nuclear Graphite, Academic Press, New York, 21 (1962).

26.
Babout L, Mummery PM, Marrow TJ, Tzelepi A, Withers PJ. Carbon, 43, 765 (2005). crossref(new window)

27.
Wen KY, Marrow TJ, Marsden BJ. Carbon, 46, 62 (2008). crossref(new window)