XRD and TEM study of NiO-LSGM reactivity

Manga Venkateswara Rao, Saso Sturm, Fritz Phillipp, Matvei Zinkevich

Research output: Contribution to journalArticlepeer-review


NiO-LSGM reactivity during sintering at high temperatures in air leads to the formation of LaNiO3-type phase which is found to be insulating for oxygen ions. XRD analysis of the NiO-LSGM samples after sintering at 1350 °C in air showed cubic (Pm-3m) LaNiO3-based phase with a lattice parameter of 3.856 Å in addition to the cubic structure of LSGM20-17. STEM/EDX analysis of the NiO- LSGM interface showed the presence of a Ni-containing perovskite phase (La, Sr) (Ga, Ni, Mg)O3 -x in the diffusion layer of LSGM. The probable composition of the LaNiO3- type phase that formed during sintering is discussed.

Original languageEnglish (US)
Pages (from-to)789-793
Number of pages5
JournalInternational Journal of Materials Research
Issue number6
StatePublished - Jun 2006
Externally publishedYes


  • LaNiO- type phase
  • NiO-LSGM reactivity
  • TEM study

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry


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