Characterization of Time-Dependent Behavior of Ramming Paste Used in an Aluminum Electrolysis Cell

Characterization of Time-Dependent Behavior of Ramming Paste Used in an Aluminum Electrolysis Cell. Orangi, S., Picard, D., Alamdari, H., Ziegler, D., & Fafard, M. Journal of Materials Engineering and Performance, 24(12):4764 - 4776, 2015. Aluminum electrolysis cell;Mechanical behavior;Mechanical characterizations;Non-linear parameters;Nonlinear visco-elastic;Ramming pastes;Testing temperature;Time dependent behavior;

Paper abstract bibtex

A new methodology was proposed for the characterization of time-dependent behavior of materials in order to develop a constitutive model. The material used for the characterization was ramming paste, a porous material used in an aluminum electrolysis cell, which is baked in place under varying loads induced by the thermal expansion of other components of the cell. In order to develop a constitutive model representing the paste mechanical behavior, it was necessary to get some insight into its behavior using samples which had been baked at different temperatures ranging from 200 to 1000 °C. Creep stages, effect of testing temperature on the creep, creep-recovery, as well as nonlinear creep were observed for designing a constitutive law. Uniaxial creep-recovery tests were carried out at two temperatures on the baked paste: ambient and higher. Results showed that the shape of creep curves was similar to a typical creep; recovery happened and the creep was shown to be nonlinear. Those experimental observations and the identification of nonlinear parameters of developed constitutive model demonstrated that the baked paste experiences nonlinear viscoelastic-viscoplastic behavior at different temperatures.
© 2015, ASM International.

@article{20154701588958 ,
language = {English},
copyright = {Compilation and indexing terms, Copyright 2023 Elsevier Inc.},
copyright = {Compendex},
title = {Characterization of Time-Dependent Behavior of Ramming Paste Used in an Aluminum Electrolysis Cell},
journal = {Journal of Materials Engineering and Performance},
author = {Orangi, Sakineh and Picard, Donald and Alamdari, Houshang and Ziegler, Donald and Fafard, Mario},
volume = {24},
number = {12},
year = {2015},
pages = {4764 - 4776},
issn = {10599495},
abstract = {A new methodology was proposed for the characterization of time-dependent behavior of materials in order to develop a constitutive model. The material used for the characterization was ramming paste, a porous material used in an aluminum electrolysis cell, which is baked in place under varying loads induced by the thermal expansion of other components of the cell. In order to develop a constitutive model representing the paste mechanical behavior, it was necessary to get some insight into its behavior using samples which had been baked at different temperatures ranging from 200 to 1000&nbsp;&deg;C. Creep stages, effect of testing temperature on the creep, creep-recovery, as well as nonlinear creep were observed for designing a constitutive law. Uniaxial creep-recovery tests were carried out at two temperatures on the baked paste: ambient and higher. Results showed that the shape of creep curves was similar to a typical creep; recovery happened and the creep was shown to be nonlinear. Those experimental observations and the identification of nonlinear parameters of developed constitutive model demonstrated that the baked paste experiences nonlinear viscoelastic-viscoplastic behavior at different temperatures.<br/> &copy; 2015, ASM International.},
key = {Creep},
keywords = {Thermal expansion;Aluminum;Creep testing;Recovery;Electrolysis;Electrolytic cells;Porous materials;Cells;Constitutive models;Cytology;},
note = {Aluminum electrolysis cell;Mechanical behavior;Mechanical characterizations;Non-linear parameters;Nonlinear visco-elastic;Ramming pastes;Testing temperature;Time dependent behavior;},
URL = {http://dx.doi.org/10.1007/s11665-015-1792-7},
}

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