Analysis of the electric field behavior in the vicinity of a triple junction, using finite elements method computational simulations

Sant'Anna, Guilherme Mauad; Roveri, Davi Sabbag; Bertan, Hilton Henrique; Mologni, Juliano Fujioka; Braga, Edmundo S.; Alves, Marco Túlio Santana

doi:10.1016/j.elstat.2015.01.003

Cited by 3 publications

(1 citation statement)

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“…The finite element method (FEM) has been extensively used in electric field analysis due to its flexibility and simplicity, allowing the estimation of fields on thin and highly curved electrode surfaces using various dielectric materials [26][27][28][29][30]. It calculates the field strength and potential distribution in a high-voltage electric field by discretizing the electrode domain and thereby even solving problems with complex geometries [31].…”

Section: Introductionmentioning

confidence: 99%

Development of High-Voltage Electrodes for Neutron Scattering Sample Environment Devices

Sun,

Guo,

Yuan

et al. 2024

Instruments

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The sample environment is essential to neutron scattering experiments as it induces the sample under study into a phase or state of particular interest. Various sample environments have been developed, yet the high-voltage electric field has rarely been documented. In this study, Bruce electrodes with various sectional geometries and chamber sizes were examined by using simulation modeling based on ANSYS Maxwell. A large uniform field region where samples would sit could be achieved in the planar region for all specifications, but the size of the region and the field strength varied with the gap distance between electrodes. The edging effect was inherently observed even for bare electrodes, about 1.7% higher in the sinusoidal region than the planar region, and was significantly deteriorated when a chamber was applied. This effect, however, presented an exponential decrease as the minimum distance between the electrode edge and the chamber shell increased. A compromise between the spatial confinement and the achievable field (strength and uniform region) could be reached according to the unique applicability of neutron instruments. This research provides a theoretical basis for the subsequent design and manufacturing of high-voltage sample environment devices.

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