The interface transport of V2O5 and WO3 into CaMo(W)O4 stimulated by an electric field

A. Guseva, A. Neiman, E. Konisheva, M. Trifonova, E. Gorbunova

Research output: Journal PublicationArticlepeer-review

1 Citation (Scopus)

Abstract

An electric field applied to the CaWO4/V2O5, CaMoO4/V2O5 and CaMoO4/WO3 systems causes grain boundary and surface transports of oxides having a low surface energy (V2O5 and WO3) and their segregation on the grain surface. It was found that V2O5 penetrates to the inner surface of CaWO4 much more intensively when the V2O5 briquette bears a negative potential: (-)V2O5|CaWO4(+). The penetration of V2O5 and WO3 to the inner surface of the CaMoO4 ceramic is accompanied by a chemical interaction.

Original languageEnglish
Pages (from-to)140-145
Number of pages6
JournalSurface Science
Volume507-510
DOIs
Publication statusPublished - Jun 2002
Externally publishedYes

Keywords

  • Ceramics
  • Diffusion and migration
  • Field effect
  • Grain boundaries
  • Surface segregation
  • Tungsten oxide
  • Vanadium oxide

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'The interface transport of V2O5 and WO3 into CaMo(W)O4 stimulated by an electric field'. Together they form a unique fingerprint.

Cite this