Modifying the Properties of Tungsten Based Plasma Facing Materials with Single-Wall Carbon Nanotubes

doi:10.1016/j.jmst.2013.07.013

Modifying the Properties of Tungsten Based Plasma Facing Materials with Single-Wall Carbon Nanotubes

Shuming Wang¹⁾, Chongxiao Sun¹⁾, Wenhao Guo¹⁾, Changchun Ge¹⁾, Qingzhi Yan¹⁾, Qiang Zhou²⁾,Pengwan Chen²⁾, Zhibao Chen³⁾

1) School of Materials Science and Engineering, University of Science & Technology Beijing, Beijing 100083, China
2) State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
3) Jiangxi Key Laboratory for Advanced Copper and Tungsten Materials, Jiangxi Academy of Sciences, Nanchang 330029, China

Received:2013-03-15 Revised:2013-06-09 Online:2013-10-30 Published:2013-10-16
Contact: S. Wang
Supported by:
Chinese National Magnetic Confinement Fusion Program (No.2010GB109000), the National Natural Science Foundation of China (No. 51172016), and the Opening Research Issues of Jiangxi Key Laboratory of Advanced Copper and Tungsten Materials (No. 2010-WT-04).

Abstract

Abstract:

Tungsten is one of the best candidates for plasma-facing components in fusion reactors owing to its unique properties. But disadvantages such as its brittleness and high ductile-to-brittle transition temperature have restricted its fusion energy application. Single-walled carbon nanotubes (SWCNTs) have the potential to be used as reinforcements due to their excellent mechanical properties. A new method of modifying the properties of tungsten by doping with SWCNTs was introduced. An efficient way of dispersing SWCNTs into the tungsten matrix with strong interfaces by heterocoagulation and ultrasonication was employed, and hot explosive compaction (HEC) technology was selected to compact and sinter the composite powders. The sintering properties, microstructure, densification effect, thermal conductivity, hardness and fracture toughness of the obtained SWCNTs/W bulk samples were tested, and compared with pure tungsten. The influences of SWCNTs on these properties and the main toughening mechanism of SWCNTs in a tungsten matrix were discussed.

Key words: Single-walled carbon nanotubes (SWCNTs), Tungsten, Plasma facing materials (PFMs), Modification

Shuming Wang, Chongxiao Sun, Wenhao Guo, Changchun Ge, Qingzhi Yan, Qiang Zhou,Pengwan Chen, Zhibao Chen. Modifying the Properties of Tungsten Based Plasma Facing Materials with Single-Wall Carbon Nanotubes[J]. J. Mater. Sci. Technol., DOI: 10.1016/j.jmst.2013.07.013.

References

[1] J. Ongena, G. Van Oost, Trans. Fusion Technol. 37 (2000) 3-15.

[2] H. Kurishita, S. Matsuo, H. Arakawa, S. Kobayashi, K. Nakai,T. Takida, K. Takebe, M. Kawai, Mater. Sci. Eng. A 477 (2008)162-167.

[3] H. Bolt, V. Barabash, G. Federici, J. Linke, A. Loarte, J. Roth,K. Sato, J. Nucl. Mater. 307-311 (2002) 43-52.

[4] M. Roedig, W. Kuehnlein, J. Linke, M. Merola, Fus. Eng. Des. 61& 62 (2002) 135-139.

[5] H. Bolt, V. Barabash, W. Krauss, J. Nucl. Mater. 329e333 (2004)66-73.

[6] K. Krieger, H. Maier, R. Neu, J. Nucl. Mater. 266e269 (1999)207-216.

[7] H. Kurishita, Y. Amano, S. Kobayashi, J. Nucl. Mater. 367e370(2007) 1453-1457.

[8] Y. Kitsunai, H. Kurishita, H. Kayano, Y. Hiraoka, T. Igarashi, T.Takida, J. Nucl. Mater. 271 (1999) 423-428.

[9] M. Jain, G. Skandan, K. Martin, D. Kapoor, K. Cho, B. Klotz, R.Dowding, D. Agrawal, J. Cheng, Int. J. Powder Metall. 42 (2006)53-58.

[10] R.S. Ruoff, D.C. Lorents, Carbon 33 (1995) 925-930.

[11] M.F. Yu, B.S. Files, S. Arepalli, R.S. Ruoff, Phys. Rev. Lett. 84(2000) 5552-5555.

[12] J. Wang, H. Xie, Z. Xin, J. Mater. Sci. Technol. 27 (2011)233-238.

[13] E. Pop, D. Mann, Q. Wang, K. Goodson, H. Dai, Nano Lett. 6(2005) 96-100.

[14] S. Saion, B. Saimir, I. Germano, S. Alexander, M. George, J.Nanopart. Res. 7 (2005) 651-657.

[15] M. Luo, Y. Li, S. Jin, S. Sang, L. Zhao, J. Mater. Sci. Technol. 28(2012) 599-605.

[16] J. Cai, G. Li, C. Wang, Z. Xie, J. Mater. Sci. Technol. 26 (2010)614-618.

[17] B. Bower, R. Rosen, L. Jin, J. Han, O. Zhou, Appl. Phys. Lett. 74(1999) 3317-3321.

[18] P.M. Ajayan, O. Stephan, C. Colliex, D. Trauth, Science 265 (1994)1212-1214.

[19] G.D. Zhan, J.D. Kuntz, J. Wan, A.K. Mukherjee, Nat. Mater. 2(2003) 38-42.

[20] R. Pruemmer, P. Weimar, Interceram 51 (2002) 394-397.

[21] R. Pruemmer, T.B. Bhat, K.S. Kumar, K. Hokamoto, Explosive Compaction of Powders & Composites, first ed., Science Publishers,2006, pp. 87-89.