- Title
- Communication-a-fast and accurate numerical technique for impedance spectroscopy of microstructures
- Creator
- Swaminathan, Narasimhan; Natarajan, Sundararajan; Ooi, Ean Tat
- Date
- 2022
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/189544
- Identifier
- vital:17464
- Identifier
-
https://doi.org/10.1149/1945-7111/ac51a2
- Identifier
- ISSN:0013-4651 (ISSN)
- Abstract
- The polygonal finite element method (PFEM) is proposed as a fast and accurate technique to simulate the impedance spectroscopy (IS) of polycrystalline materials. While conventional finite element method (FEM) requires explicit meshing of the grains and grain boundaries, in PFEM each region can be treated as an element. We demonstrate that the number of degrees of freedom in PFEM can be lower by a factor of 30 when compared to FEM, thus speeding up simulations by a factor of 3.5. A simple example demonstrates the use of PFEM to generate IS on samples with various grain boundary widths. © 2022 The Author(s).
- Publisher
- IOP Publishing Ltd
- Relation
- Journal of the Electrochemical Society Vol. 169, no. 2 (2022), p.
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- https://creativecommons.org/licenses/by-nc-nd/4.0/
- Rights
- Copyright © 2022 The Author(s)
- Rights
- Open Access
- Subject
- 3406 Physical chemistry; 4016 Materials engineering; Grain boundaries; Impedance; Microstructure; Polygonal Finite element method
- Full Text
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