Creep of (La0.55Sr0.45)0.99Mn1-yGayO3 : Complex oxide: defect chemistry, transport and chemical reaction

@inproceedings{Routbort2003CreepO,
  title={Creep of (La0.55Sr0.45)0.99Mn1-yGayO3 : Complex oxide: defect chemistry, transport and chemical reaction},
  author={Jules L. Routbort and James Ralph and Russell Ernest Cook and Corinna Clauss and Antonio R. de Arellano-Lopez},
  year={2003}
}
Steady-state compressive creep was measured in (La 0.55 Sr 0.45 ) 0.99 Mn 1-y Ga r O 3 at temperatures from 1200 to 1270°C in air at stresses (σ) from 13 to 40 MPa. The Ga concentration was y = 0, 0.05, and 0.10. Strains to 0.14 were obtained. In the creep equation for strain rate. e = A 17 exp(-Q/RT), stress exponents (n) were between 1.3 and 1.7, indicating that diffusional flow is the dominant creep mechanism, and the activation energy (Q) was found to vary from 355 kJ mol -1 for v 0 to 485… CONTINUE READING