On the mechanism of zirconium nitride formation by zirconium, zirconia and yttria burning in air

Ekaterina Malikova, Julia Pautova, Alexander Gromov, Konstantin Monogarov, Kirill Larionov, Ulrich Teipel

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Abstract The combustion of Zr and (Zr+ZrO2) powdery mixtures in air was accompanied by major ZrN stabilization. The synthesis of cheap ZrN with the high yield in air was facile and utile. The influence of Y2O3 additive on the content of ZrN the solid combustion products (SCP) was investigated. The reagents and SCP were analyzed by BET, DTA-TGA, XRD, SEM and EDS. Burning temperature was measured by thermal imager. The yield of ZrN in the SCP has been varied by the time regulation of the combustion process. The burning samples were quenched at a certain time to avoid the re-oxidation of the obtained ZrN by oxygen. The quenching of the burned (Zr+ZrO2) samples with the Y2O3 additive was allowed increasing the ZrN yield in SCP up to 66 wt%. The chemical mechanism of ZrN formation in air was discussed and the probable source of ZrN massive formation is suggested.

Original languageEnglish
Article number18980
Pages (from-to)199-208
Number of pages10
JournalJournal of Solid State Chemistry
Volume230
DOIs
Publication statusPublished - 18 Jul 2015

Keywords

  • Combustion
  • Yttria
  • Zirconia
  • Zirconium
  • Zirconium nitride

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry

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