Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-28T21:24:27.916Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of high temperature heat treatment on the microstructure and mechanical properties of third generation SiC fibers

Published online by Cambridge University Press:  20 March 2013

Dominique Gosset ,
Aurélien Jankowiak ,
Thierry Vandenberghe ,
Maud Maxel ,
Christian Colin ,
Nicolas Lochet  and
Laurence Luneville
Dominique Gosset
Affiliation:
CEA-Saclay, DMN-SRMA-LA2M, LRC CARMEN, 91191 Gif/Yvette, France
Aurélien Jankowiak
Affiliation:
CEA-Saclay, DMN-SRMA-LC2M, 91191 Gif/Yvette, France
Thierry Vandenberghe
Affiliation:
CEA-Saclay, DMN-SRMA-LA2M, 91191 Gif/Yvette, France
Maud Maxel
Affiliation:
CEA-Saclay, DMN-SRMA-LC2M, 91191 Gif/Yvette, France
Christian Colin
Affiliation:
CEA-Cadarache, DER-SRJH-LEDI, 13108 St Paul-lès-Durance, France
Nicolas Lochet
Affiliation:
CEA-Saclay, DMN-SRMA-LTMEX, 91191 Gif/Yvette, France
Laurence Luneville
Affiliation:
CEA-Saclay, DM2S-SERMA-LLPR, LRC CARMEN, 91191 Gif/Yvette, France
Get access

Abstract

SiC fibers (High Nicalon S -HNS and Tyranno SA3 -Ty-SA3) submitted to heat treatments in neutral atmosphere up to 1900°C were studied by X-ray diffraction (XRD) and TEM observations then submitted to tensile tests up to 1800°C. The microstructural changes in both materials were determined by XRD using a modified Hall-Williamson method introducing an anisotropy parameter taking into account the high density of planar defects of the SiC-3C structure. HNS fibers exhibit significant modifications in the CDD size which drastically increases from 24 nm to 70 nm in the range 1600°C to 1800°C and in the microstrains which decrease from 0.0015 to 0.0005 between 1750°C to 1850°C. Concerning the Ty-SA3 fibers, no evolution of CDD size and microstrains has been observed. The mechanical properties of single fibers were investigated after the heat treatments showing decreases in the tensile strength reaching up to 20% for Tyranno SA3 and 50% for High Nicalon S. The Weibull moduli were also significantly affected. These results are correlated to the fiber structural and microstructural evolutions.

Keywords

fiberx-ray diffraction (XRD)fracture
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1514: Symposium HH – Advances in Materials for Nuclear Energy , 2013 , pp. 131 - 137
Copyright
Copyright © Materials Research Society 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Yvon, P., Carré, F., J. Nucl. Mat., 385-2, 217–222 (2009)10.1016/j.jnucmat.2008.11.026CrossRefGoogle Scholar
Basic research needs for advances nuclear energy systems, Office of Basic Energy Sciences, U.S. Department of Energy, October 2006 Google Scholar
Sauder, C., Lamon, J., J. Am. Cer. Soc. 90 [4] 1146–1156 (2007)10.1111/j.1551-2916.2007.01535.xCrossRefGoogle Scholar
Kriven, W. M., Lin, Hua-Tay, Jones, R. H., Chapter 38. SiC/SiC Composites for Advanced Nuclear Applications, 27th Annual Cocoa Beach Conference on Advanced Ceramics and Composites: B: Ceramic Engineering and Science Proceedings, Volume 24, Issue 4 Google Scholar
Ozawa, K. et al. ., J. Nucl. Mat., 367–370 part A, 713–718 (2007)10.1016/j.jnucmat.2007.03.033CrossRefGoogle Scholar
Snead, L. L., Schwarz, O. J., J. Nucl. Mat., 219, 3–14 (1995)10.1016/0022-3115(94)00663-6CrossRefGoogle Scholar
Katoh, Y, et al. ., J. Nucl. Mat., 403 [1-3], 48–61 (2010)10.1016/j.jnucmat.2010.06.002CrossRefGoogle Scholar
Sauder, C., Lamon, J., J. Am. Cer. Soc. 90 [4], 1146–1156 (2007)10.1111/j.1551-2916.2007.01535.xCrossRefGoogle Scholar
Youngblood, G.E. et al. ., J. Nucl. Mat., 289 [1-2], 1–9 (2001)10.1016/S0022-3115(00)00675-9CrossRefGoogle Scholar
Sha, J. J. et al. ., J. Nucl. Mat., 329–333 part A, 592–596 (2004)10.1016/j.jnucmat.2004.04.123CrossRefGoogle Scholar
Sha, J.J. et al. ., Mat. Charac., 57 [1], 6–1 (2006)10.1016/j.matchar.2005.11.019CrossRefGoogle Scholar
Gosset, D. et al. ., accepted J. Am. Cer. Soc. (2012)Google Scholar
Williamson, G. K., Hall, W. H., Acta. Met. 1, 22–31 (1953)10.1016/0001-6160(53)90006-6CrossRefGoogle Scholar
Lee, Y., Park, Y., Hinoki, T., ‘Influence of Grain Size on Thermal Conductivity of SiC Ceramics’, IOP Conf. Series: Materials Science and Engineering, 18 162014 (2011)10.1088/1757-899X/18/16/162014CrossRefGoogle Scholar
Sauder, C., Lamon, J., J. Am. Cer. Soc., 90-4, 1146–1156 (2007)10.1111/j.1551-2916.2007.01535.xCrossRefGoogle Scholar