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Influence of the type of medical sterilisation on electrochemical properties of passive layer created on X10CrNi 18-8 steel

  • Silesian University of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

The study presents results of impedance tests performed for wires made of X10CrNi 18-8 steel after electrochemical polishing and chemical passivation, subject to medical sterilisation with pressurised water steam or ethylene oxide. In order to determine the impact of sterilising agent on electrochemical characteristics of the passive layer, impedance measurements were made. Measurements were made with application of measurement system Auto Lab PGSTAT 302N equipped with FRA2 (Frequency Response Analyser) module. Impedance spectra of the system were determined in the tests and data obtained in the measurement was matched to the equivalent system. It made the ground for determination of numerical values of resistance and capacitance of the analysed systems. Impedance spectra of the tested system are presented in the form of Nyquist diagrams for various values of frequency, and as Bode diagrams. On the ground of performed test it was explicitly proved that application of steam sterilisation and sterilisation with ethylene oxide of wires made of X10CrNi 18-8 steel after chemical passivation used for urological guide wires has a favourable impact on their electrochemical characteristics.

Original languageEnglish
Title of host publicationTechnologies and Properties of Modern Utility Materials XXI
PublisherTrans Tech Publications Ltd.
Pages141-144
Number of pages4
ISBN (Print)9783037859452
DOIs
Publication statusPublished - 2014
Event21st Conference on Technologies and Properties of Modern Utility Materials, TPMUM 2013 - Katowice, Poland
Duration: 17 May 201317 May 2013

Publication series

NameSolid State Phenomena
Volume212
ISSN (Print)1012-0394

Conference

Conference21st Conference on Technologies and Properties of Modern Utility Materials, TPMUM 2013
Country/TerritoryPoland
CityKatowice
Period17/05/1317/05/13

Keywords

  • Chemical passivation
  • EIS
  • Ethylene oxide
  • Steam sterilisation
  • X10CrNi18-8 steel

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Condensed Matter Physics

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