Abstract
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 LaNiO3type phase that formed during sintering is discussed.
Original language | English (US) |
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Pages (from-to) | 789-793 |
Number of pages | 5 |
Journal | Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques |
Volume | 97 |
Issue number | 6 |
DOIs | |
State | Published - Jun 2006 |
Externally published | Yes |
Keywords
- LaNiOtype phase
- NiO-LSGM reactivity
- TEM study
ASJC Scopus subject areas
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Metals and Alloys
- Materials Chemistry