The sintering behaviour of La,,,Sr,,,MnO, has been studied by dilatometry between 1100 and 1800 K in various oxygen potentials [pure oxygen, air and nitrogen (PO, = 1 X lo-' bar)]. The starting material was prepared by spray pyrolysis of aqueous solutions of nitrates. Two classical sinter stages, ne
โฆ LIBER โฆ
Sinter behaviour of (La, Sr)MnO3
โ Scribed by J.A.M. van Roosmalen; E.H.P. Cordfunke; J.P.P. Huijsmans
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 875 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0167-2738
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The steady-state creep rate of La, \_,Sr,MnO, (x = 0.10, 0.15 and 0.25) decreased with increasing Sr content in a regime where diffusional creep is the dominant deformation mechanism. This composition effect when compared to existing point defect models suggested that the rate-controlling species fo