High Temperature Creep Behaviour of Carbon-Based Cathode Material for Aluminum Electrolysis

被引：0
作者：
Wang, Wei [1 ,2 ,3 ]
Sun, Kai [1 ,2 ,3 ]
机构：
[1] Henan Univ Sci & Technol, Coll Mat Sci & Engn, Luoyang 471023, Peoples R China
[2] Collaborat Innovat Ctr Nonferrous Met Henan Prov, Luoyang 471023, Peoples R China
[3] Henan Key Lab Nonferrous Mat Sci & Proc Technol, Luoyang 471023, Peoples R China
来源：
LIGHT METALS 2020 | 2020年
基金：
中国国家自然科学基金;
关键词：
Aluminum electrolysis; Carbon cathode; Creep strain; Simulation; Graham model; DEFORMATION; INDUSTRIAL;
D O I：
10.1007/978-3-030-36408-3_175
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The creep strain of the semi-graphitic commercial cathode material used for aluminum production was measured on solid cylinder sample. Experimental results were obtained using a modified Rapoport equipment for the cathode material during aluminum electrolysis with a cryolite mole ratio (NaF/AlF3) of 2.5 and at a temperature of 950 degrees C under different stress levels. The coincident method proposed previously was applied to model the creep strain of carbon-based cathode material. The test data were processed, and the creep characteristics of the cathode material were determined based on Graham creep equation. A relationship between creep coefficients and stress has been developed. Then, the creep characteristics of the cathode material were obtained by finite element numerical simulations. The model results were in accordance with the experimental ones. This work will contribute to controlling the quality of the carbon cathode and improving the cell design.
引用
收藏
页码：1278 / 1282
页数：5
相关论文
共 12 条
  • [1] Reactivity between carbon cathode materials and electrolyte based on industrial and laboratory data
    Chauke, L.
    Garbers-Craig, A. M.
    [J]. CARBON, 2013, 58 : 40 - 45
  • [2] Primary Creep Modeling Based on the Dependence of the Activation Energy on the Internal Stress
    Esposito, Luca
    Bonora, Nicola
    [J]. JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME, 2012, 134 (06):
  • [3] Plastic deformation behavior of 10H-type synchronized LPSO phase in a Mg-Zn-Y system
    Hagihara, Koji
    Okamoto, Takuya
    Izuno, Hitoshi
    Yamasaki, Michiaki
    Matsushita, Masafumi
    Nakano, Takayoshi
    Kawamura, Yoshihito
    [J]. ACTA MATERIALIA, 2016, 109 : 90 - 102
  • [4] A ReaxFF force field for sodium intrusion in graphitic cathodes
    Hjertenaes, Eirik
    Anh Quynh Nguyen
    Koch, Henrik
    [J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2016, 18 (46) : 31431 - 31440
  • [5] Thermal-Treated Pitches as Binders for TiB2/C Composite Cathodes
    Lu, Xiao-Jun
    Xu, Jian
    Li, Jie
    Lai, Yan-Qing
    Liu, Ye-Xiang
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2012, 43A (01): : 219 - 227
  • [6] Room temperature long-term creep/relaxation behaviour of carbon cathode material
    Picard, D.
    Fafard, M.
    Soucy, G.
    Bilodeau, J. -F.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 496 (1-2): : 366 - 375
  • [7] Ripplocations, kink bands and delamination cracks in carbon cathode materials
    Wang, Wei
    Chen, Weijie
    Liu, Haitao
    Zhang, Hongtao
    [J]. CARBON LETTERS, 2019, 29 (04) : 377 - 383
  • [8] Atomic scale investigations of carbon-based cathode materials deformation mechanism during aluminum electrolysis
    Wang, Wei
    Chen, Weijie
    Liu, Haitao
    Zhang, Chen
    [J]. DIAMOND AND RELATED MATERIALS, 2019, 95 : 14 - 19
  • [9] Creep Deformation of Carbon-Based Cathode Materials for Low-Temperature Aluminum Electrolysis
    Wang, Wei
    Chen, Weijie
    Gu, Wanduo
    [J]. METALLURGIST, 2017, 61 (7-8) : 717 - 725
  • [10] Wang W, 2011, LIGHT MET, P1053
12