Paper Titles
The Effect of Heat Treatment on the Microstructure and Mechanical Properties of KD-II SiC Fibers in Air
p.132
Effects of Fiber Pre-Oxidation on Mechanical Properties and Microstructure of T700 Carbon Fiber Reinforced Mini C/SiC Composites
p.137
Microstructure and Mechanical Properties of ZrB2-SiC-ZrSi2 Composites Fabricated by Spark Plasma Sintering
p.143
Oxidation Behavior of Si-B-C-N Multiphase Ceramic
p.148
The Effect of Point Defects Induced by Fast Neutron Irradiation on the Thermal Conductivity of Boron Carbide
p.153
Boron Carbide Hollow Microspheres Prepared by Polymer Derived Method
p.159
Influence of Synthesis Process on Coated Properties of Al(OH)3-Y(OH)3/ZrB2 Composite Powders
p.164
Rheological Properties and Ceramization Mechanism of ZrO2 Preceramic Solution
p.169
Research on Optical Property of Black-Colored Zirconia Ceramics by Photoluminescence, Raman and Visible Reflectivity Spectra
p.174

The Effect of Point Defects Induced by Fast Neutron Irradiation on the Thermal Conductivity of Boron Carbide

Article Preview

Abstract:

The thermal conduction behavior of the neutron absorbing ceramic boron carbide in the initial stage of the irradiation was analyzed and a classical thermal conduction model was used to estimate the variation of the thermal conductivity in this paper. The calculated thermal conductivity using the model shows a large degration in the initial stage of irradiation. As the burnup increases, the thermal conductivity turns to be free of temperature dependence. These calculated results are consistent well with the expermental data of thermal conductivity of the irradiated boron carbide, which may suggest that the variation of the thermal conductivity of boron carbide is predominantly determined by the point defects scattering in the initial stage of irradiation.

You might also be interested in these eBooks
Properties and Testing Techniques of Inorganic Materials II View Preview

Info:

Periodical:

Key Engineering Materials (Volume 726)

Pages:

153-158

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.726.153

Citation:

Cite this paper

Online since:

January 2017

Authors:

Ai Bing Du*, Zhi Xue Qu, Xi Ping Su, Xiao Xiao

Keywords:

B4C, Fast Neutron Irradiation, Point Defects, Thermal Conductivity

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2017 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] T. Maruyama, S. Onose, T. Kaito, H. Horiuchi, Effect of fast neutron irradiation on the properties of boron carbide pellet, J. Nucl. Sci. Technol. 34 (1997) 1006-1014.

DOI: 10.1080/18811248.1997.9733777

Google Scholar

[2] T. Inoue, T. Onchi, H. Kôyama, H. Suzuki, Irradiation effects of boron carbide used as control rod elements in fast breeder reactors, J. Nucl. Mater. 74 (1978) 114-122.

DOI: 10.1016/0022-3115(78)90539-1

Google Scholar

[3] G.W. Hollenberg, J.A. Basmajian, Crack propagation in irradiated B4C induced by swelling and thermal gradients. J. Am. Ceram. Soc. 65 (1982) 179-181.

DOI: 10.1111/j.1151-2916.1982.tb10398.x

Google Scholar

[4] T. Stoto, N. Housseau, L. Zuppiroli, B. Kryger, Swelling and microcracking of boron carbide subjected to fast neutron irradiations, J. Appl. Phys. 68 (1990) 3198-3206.

DOI: 10.1063/1.346370

Google Scholar

[5] Y. Morohashi, T. Maruyama, T. Donomae, Y. Tachi, S. Onose, Neutron irradiation effect on isotopically tailored 11B4C, J. Nucl. Sci. Technol. 45 (2008) 867-872.

DOI: 10.1080/18811248.2008.9711488

Google Scholar

[6] G.W. Hollenberg, J.L. Jackson, J.A. Basmajian, In-reactor measurement of neutron absorber performance, Nucl. Technol. 49 (1980) 92-101.

DOI: 10.13182/nt80-a32510

Google Scholar

[7] M. Bouchacourt, F. Thevenot. The correlation between the thermoelectri properties and stoichiometry in the boron carbide phase B4C-B10. 5C, J. Mater. Sci. 20 (1985) 1237-1247.

DOI: 10.1007/bf01026319

Google Scholar

[8] J. Wu, N.P. Padture, P.G. Klemens, M. Gell, E. Garcia, P. Miranzo, M. I. Osendi, Thermal conductivity of ceramics in the ZrO2-GdO1. 5 system, J. Mater. Res. 17 (2002) 3193-3200.

DOI: 10.1557/jmr.2002.0462

Google Scholar

[9] M. C. Roufosse, P. G. Klemens, Lattice thermal conductivity of minerals at high temperatures, J. Geophys. Res. 79 (1974) 703-705.

DOI: 10.1029/jb079i005p00703

Google Scholar

[10] P. G. Klemens, Thermal resistance due to point defects at high temperatures, Phys. Rev. 119 (1960) 507-509.

DOI: 10.1103/physrev.119.507

Google Scholar

[11] C.L. Wan, W. Pan, Q. Xu, Y.X. Qin, JD. Wang, Z. X. Qu, M.H. Fang, Effect of point defects on the thermal transport properties of (LaxGd1-x)2Zr2O7: Experiment and theoretical model, Phys. Rev. B 74 (2006) 144109.

Google Scholar