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Published in:
2016 | OriginalPaper | Chapter
High Temperature Compression Test to Determine the Anode Paste Mechanical Properties
Authors : Stéphane Thibodeau, Hicham Chaouki, Houshang Alamdari, Donald Ziegler, Mario Fafard
Published in: Light Metals 2014
Publisher: Springer International Publishing
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In order to develop a constitutive law for Hall process anode finite element modelling, a compression test method was developed to identify the hot paste properties which evolve with the density. A thin stainless steel cylindrical mould was placed in a furnace mounted on a press. The mould was instrumented with strain gages in the axial and tangential directions to capture the strain as a function of the axial load applied on the paste. The compression test meets the need for characterizing the paste mechanical properties. Loadings were designed to excite the specific mechanical properties, as a function of density, useful for the numerical model. The deformation of the mould shell allowed evaluation of the paste Young’s modulus. A compaction test was performed and a tomography scan was realized on the resulting sample to confirm that the green compact density is almost uniform.