Measuring the changes in copper nanopowder conductivity during heating as a method for diagnosing its thermal stability

Andrei V. Mostovshchikov, Alexander P. Ilyin, Irina K. Zabrodina, Liudmila O. Root, Daniar V. Ismailov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This work researches the impact of the temperature of compacted copper nanopowder on the amperage of the current flowing through the nanopowder sample. It was determined that upon reaching its oxidation temperature (∼190°C), the copper nanopowder started conducting electricity, and at 280-320 °C electric breakdown of sample was occurring. This is caused to irreversible processes taking place in nanomaterials during heating, such as sintering and mass-transfer, those processes leading to the formation of conductivity channels. This speaks in favor of an evident dependency between copper nanopowder conductivity and the chemical transformations taking place in it; this allows for recommending this research method for instant diagnostics of copper nanopowders.

Original languageEnglish
Title of host publicationHigh Technology
Subtitle of host publicationResearch and Applications 2017
EditorsGeorgii E. Osokin, Ekaterina A. Kulinich
PublisherTrans Tech Publications Ltd
Pages146-151
Number of pages6
ISBN (Print)9783035712810
DOIs
Publication statusPublished - 2018
Event6th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2017 - Tomsk, Russian Federation
Duration: 27 Nov 201729 Nov 2017

Publication series

NameKey Engineering Materials
Volume769 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference6th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2017
CountryRussian Federation
CityTomsk
Period27.11.1729.11.17

Keywords

  • Copper nanopowder
  • Diagnostic methods
  • Electric conductivity
  • Oxidation
  • Thermal stability

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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