Detail publikace

Finite Elements Approach to Predicting Impedance Response of Geometrically Convoluted Samples

VANÝSEK, P. VYROUBAL, P. NOVÁK, V. HAŇKA, J.

Originální název

Finite Elements Approach to Predicting Impedance Response of Geometrically Convoluted Samples

Typ

článek v časopise ve Scopus, Jsc

Jazyk

angličtina

Originální abstrakt

Capacitance and resistance are extensive variables that depend on the geometry of a sample. Therefore, to obtained a normalized value, attributable to the material and not the sample shape and dimension, the geometry has to be taken into account. While with certain geometric forms simple division of multiplication, based on length and cross-section can be applied, with more convoluted forms this is not as straightforward. Ideal measurement will be done on samples geometrically simple. However, with awkward shapes or irregular electrode placements, measurements are still done and the geometry effect can be corrected after the fact. As an example is a ceramic disc with grain and boundary resistance and capacitance, that could be encountered in studies of advanced high temperature materials, e.g., for sensors of high-temperature fuel cells. The disks prepared by various methods of synthesis are contacted on their flat sides to the impedance analyzer circuitry. Our study correlates the (simulated) measured data to data that would be expected if perfectly symmetrical all-covering contacts were used.

Klíčová slova

Electrochemistry, impedance, finite elements, simulations

Autoři

VANÝSEK, P.; VYROUBAL, P.; NOVÁK, V.; HAŇKA, J.

Rok RIV

2015

Vydáno

31. 12. 2015

Nakladatel

The Electrochemical Society

Místo

Pennington, NJ USA

ISSN

1938-5862

Periodikum

ECS Transactions

Ročník

69

Číslo

41

Stát

Spojené státy americké

Strany od

11

Strany do

17

Strany počet

7

URL

http://ecst.ecsdl.org/content/69/41/11.full.pdf+html

BibTex

@article{BUT119948,
  author="Petr {Vanýsek} and Petr {Vyroubal} and Vítězslav {Novák} and Jiří {Haňka}",
  title="Finite Elements Approach to Predicting Impedance Response of Geometrically Convoluted Samples",
  journal="ECS Transactions",
  year="2015",
  volume="69",
  number="41",
  pages="11--17",
  doi="10.1149/06941.0011ecst",
  issn="1938-5862",
  url="http://ecst.ecsdl.org/content/69/41/11.full.pdf+html"
}