Skip to main content
SpringerLink
Log in

Effect of carbon fibre on properties of TiB2/C composite cathode coating for aluminum electrolysis

  • Published:
Journal of Central South University of Technology Aims and scope Submit manuscript

Abstract

The tensile strength, compressive strength and electrical resistivity of TiB2/C composite cathode coating were measured with a hydraulic pressure universal test machine and an electrical resistivity test device, and the effects of carbon fibre content and carbon fibre length on tensile strength, compressive strength and electrical resistivity were investigated. The results show that the tensile strength of coating increases at the beginning and then reduces with the increase of carbon fibre content when the carbon fibre (length of 3 mm) content ranges from 0 to 4.0%; at the carbon fibre content of 1.5%, the tensile strength of coating reaches the maximum, 25.6 MPa. For the coating with carbon fibre content of 1.5%, the carbon fibre length has a great influence on tensile strength and compressive strength of coating; when the carbon fibre length is 6 mm, the tensile strength and compressive strength of coating reach the maximum, 27.6 MPa and 39.2 MPa, respectively. The electrical resistivity of coating reduces with the rise of temperature and the length of carbon fibre, and the influence of carbon fibre length on electrical resistivity of coating at low temperature (30–200 °C) is more obvious than that at high temperature (960 °C).

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. WELCH B J. Future materials requirements for the high-energy-intensity production of aluminum [J]. Journal of Metal, 2001, 53(2): 13–15.

    Google Scholar 

  2. MCMINN C J. A review of RHM cathode development [C]// CUTSHALL E R. Light Metals 1992. Warrendale: TMS, 1992: 419–425.

    Google Scholar 

  3. PAWLEK R P. Aluminum wettable cathodes: An update [C]// PETERSON R D. Light Metals 2000. Warrendale: TMS, 2000: 449–454.

    Google Scholar 

  4. DIONNE M, LESPERANCE G, MIRTCHI A. Wetting of TiB2-carbon material composite[C]// ECKERT C E. Light Metals 1999. Warrendale: TMS, 1999: 389–394.

    Google Scholar 

  5. BROWN C W. Wettability of TiB2-based cathodes in low-temperature slurry-electrolyte reduction cells [J]. Journal of Metal, 1998, 50(2): 38–40.

    Google Scholar 

  6. SEKHAR J A, de NORA V, LIU J, WANG X. TiB2/colloidal alumina carbon cathode coating in Hall-Heroult and drained cells [C]// WELCH B. Light Metals 1998. Warrendale: TMS, 1998: 605–615.

    Google Scholar 

  7. ALTON T, BROWN J, IVAN E, WILLIAM M. The operational performance of 70 kA prebake cells retrofitted with TiB2-G cathode elements [C]// WELCH B. Light Metals 1998. Warrendale: TMS, 1998: 257–264.

    Google Scholar 

  8. LAI Yan-qing, LI Qing-yu, YANG Jian-hong, LI Jie. Ambient temperature cured TiB2 cathode coating for aluminum electrolysis [J]. Trans Nonferrous Met Soc China, 2003, 13(3): 704–707.

    Google Scholar 

  9. LIAO Xian-an, ØYE H A. Effects of carbon-bonded coatings on sodium expansion of the cathode in aluminum electrolysis [C]// ECKERTC E. Light Metals 1999. Warrendale: TMS, 1999: 629–636.

    Google Scholar 

  10. LI Qing-yu, LAI Yan-qing, LI Jie, YANG Jian-hong, CHEN Zhu. The effect of sodium-containing additives on the sodium-penetration resistance of TiB2/C composite cathode in aluminum electrolysis [C]// KVANDE H. Light Metals 2005. Warrendale: TMS, 2005: 789–791.

    Google Scholar 

  11. LIAO Xian-an, HUANG Yong-zhong, LIU Ye-xiang. Potline-scale application of TiB2 coating in Hefei Aluminum & Carbon Plant [C]// WELCH B. Light Metals1998. Warrendale: TMS, 1998: 685–688.

    Google Scholar 

  12. LI Qing-yu, LAI Yan-qing, LI Jie, YANG Jian-hong, LIU Ye-xiang. Sodium penetration resistance of ambient temperature cured TiB2 cathode coating [J]. Journal of Central South University: Natural Science, 2004, 35(6): 907–910. (in Chinese)

    Google Scholar 

  13. LI Jie, LÜ Xiao-jun, LI Qing-yu, LAI Yan-qing, YANG Jian-hong. Electrical resistivity of TiB2/C composite cathode coating for aluminum electrolysis [J]. Journal of Central South University of Technology, 2006, 13(3): 209–213.

    Article  Google Scholar 

  14. HU Fu-zeng, CHEN Guo-rong. Material surface and interface [M]. Shanghai: East China Science and Technology University Press, 2001. (in Chinese)

    Google Scholar 

  15. LI Qing-yu. Development and industrial application of wettable inert TiB2 cathodic composite coating for aluminum electrolysis [D]. Changsha: Central South University, 2003. (in Chinese)

    Google Scholar 

  16. NING Ping, HU Jian, YI Feng, XIA Lin. Structure and performance of TLCP composite material as a reinforcing agent of carbon fibre [J]. Transactions of South China Science and Technology: Science and Technology, 2003, 31(9): 62–65. (in Chinese)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. School of Metallurgical Science and Engineering, Central South University, Changsha, 410083, China

    Jie Li  (李 劼), Xiao-jun Lü  (吕晓军), Yan-qing Lai  (赖延清), Qing-yu Li  (李庆余), Zhong-liang Tian  (田忠良) & Zhao Fang  (方钊)

  2. School of Chemistry and Chemical Engineering, Guangxi Normal University, Guilin, 541004, China

    Qing-yu Li  (李庆余)

Authors
  1. Jie Li  (李 劼)
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Xiao-jun Lü  (吕晓军)
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Yan-qing Lai  (赖延清)
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Qing-yu Li  (李庆余)
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Zhong-liang Tian  (田忠良)
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Zhao Fang  (方钊)
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Xiao-jun Lü  (吕晓军).

Additional information

Foundation item: Project(2005CB623703) supported by the Major State Basic Research Development Program of China

Rights and permissions

Reprints and permissions

About this article

Cite this article

Li, J., Lü, Xj., Lai, Yq. et al. Effect of carbon fibre on properties of TiB2/C composite cathode coating for aluminum electrolysis. J. Cent. South Univ. Technol. 15, 526–530 (2008). https://doi.org/10.1007/s11771-008-0099-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11771-008-0099-3

Key words

Search

Navigation