The Influence on Electrical Characteristics of Contact WCu and Ti₃SiC₂ Material

Abstract:

Electrical contractor affects reliability and working life of switches and electrical equipment directly, which is the key component of high-voltage and low-voltage apparatus. Nowadays, all fields of mid-voltage and above are occupied by vacuum switch. The invention of contactor material CuCr promotes the development of electrical contractor material and vacuum switch though the weakness can not be ignored. This paper makes a study and analysis about the performance of traditional electrical contractor material WCu. Its believed that alloy WCu has the high conductivity and high thermal conductivity of W, and the ability to improve applying condition and reduce electrical corrosion of Cu. So the experiment is made to test electrical characteristics of material WCu which is doping with different element. The performance of a new electrical contractor material, named Ti₃SiC₂, which is better than alloy WCu is put forward. This material meets the requirement, including high voltage, huge capacity, small scale, for switching equipment to develop grid, as the new material has advantage of low density, high modulus, high melting point, and antioxidant and so on. The successful application improves its superiority in the field of electrical contractor material.

• Periodical: Advanced Materials Research (Volume 427)
• Pages: 185-190
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.427.185
• Online since: January 2012
• Authors: Zhan Kai Li, Jing Qin Wang, Fu Min Zhang, Meng Yu Li, Hao Hua Li, Si Li, Yong Cui Sun
• Keywords: Doping Different Elements, Electrical Contact, Ti₃SiC₂, WCu Alloy

References

[1] D.M. Lv: Vacuum switches and electronic devices with W-Cu material [J]. Powder Metallurgy Industry, 1998 (6): 32-35.

[2] J.M. Wang: Vacuum switch contact materials and manufacturing technology. Xi'an Jiaotong University, Center for Theoretical Study of vacuum arc.

[3] A.P. Xi: High-power vacuum switch contact material of copper-chromium [J], China Nonferrous Metals, 2001: 11. 731.

[4] Y.Q. Tao, Z.P. Wang and N.X. Fang, et al.: W-Cu composite materials manufacturing processes [J], Powder metallurgy technology, 2002, 20(1): 49-51.

[5] B. Kang and R.M. German: Power Injection Molding and Infiltration Sintering of Superfine Grain W-Cu [J]. The International Journal of Powder Metallurgy, 1997, 33(4): 55-63.

[6] J.C. Kim, S.S. Ryu and H. Lee, et al.: Metal Injection Molding Nanostructured W-Cu Composite Power [J]. The International Journal of Powder Metallurgy, 1999, 35(4): 47-55.

[7] Kimdg, N.H. Jeo and Y.D. Kim, et al.: Hydrogen-reduction Behavior and Microstructural Characteristics of WO3-CuO Powder Mixtures with Various Milling time [J]. Journal of Alloys and Compounds, 2003, 354(1/2): 239-242.

DOI: 10.1016/s0925-8388(03)00007-0

[8] Z.Q. Wang, J.J. He and J.Y. Zou, et al.: Power switching technology [M], Huazhong University of Science and Technology Press, 2003: 197-198.

[9] T. Raghu, R. Sundaresan and P. Ramakrishnan, et al.: Synthesis of Nanocrystalline Copper Tungsten Alloys by Mechanical Alloying [J]. Mater. Sci. Eng. A, 2001, 304/306: 438-441.

DOI: 10.1016/s0921-5093(00)01444-1

[10] E. K, J.A.A. Crossley and S. Myhra, et al.: Strueture and Crystal-Chemistry of Ti3SiC2. Phys. Chem. sol. 1998. 59: 1437-1443.

[11] M. Amer, M.W. Barsoum and T. EI-Raghy, et al. Raman SPeetrum of Ti3SiC2. APPLPhys. 1998. 84: 5817-5819.

[12] F. Chen, E.L. Zhao: New Research Progress layered ceramic Ti3SiC2 [J]. Ceramic Science and Art, 2006, 5: 36.

[13] J.J. Liu and C.L. Li: Ti3SiC2 Ceramics Research [J]. Powder metallurgy materials science and engineering, 11(2): 68-69.

[14] J. Lis, Y. Miyamoto and R. Pampuch, et al.: Ti3SiC2-Based Materials Prepared By HIP2SHS Teehnique [J]. Mater Lett, 1995, 22(3): 163-168.