Akash Rijhsinghani, Toluwalope John, Srikanth Gopalan. “Atmosphere-dependent chemical stability of BZCYYb–YSZ interfaces: a kinetic origin for BaZrO₃ suppression under reducing conditions.” ChemRxiv (). https://doi.org/10.26434/chemrxiv.15007954/v1

Values presented only in diffraction patterns, phase-fraction plots, or other plots or images were not transcribed. Computed and simulated data were not retained

BZCYYb powders
XRD quantitative phase analysis, Pechini synthesis, 900 °C, 1 h BZCYYb: 92.2 wt%; doped ceria: 7.8 wt%
XRD quantitative phase analysis, aqueous nitrate mixing, 900 °C, 3 h BZCYYb: 90.6 wt%; doped ceria: 9.4 wt%
XRD quantitative phase analysis, aqueous nitrate mixing, 900 °C, 5 h BZCYYb: 93.7 wt%; doped ceria: 6.3 wt%
XRD quantitative phase analysis, aqueous nitrate mixing, 1150 °C, 5 h BZCYYb: 93.1 wt%; doped ceria: 6.9 wt%
SI, p. S2
50:50 wt% BZCYYb–8YSZ mixture aged at 900 °C in air
XRD quantitative phase analysis, joint neighbor-pair Lorentzian direct derivation, 0 h BZCYYb: approximately 48 wt%; YSZ: approximately 48 wt%; BaZrO₃: 0.0 wt%; CeO₂: 4.2 wt%
XRD quantitative phase analysis, joint neighbor-pair Lorentzian direct derivation, 24 h BaZrO₃: 21.6 wt%; CeO₂: 12.0 wt%
XRD quantitative phase analysis, joint neighbor-pair Lorentzian direct derivation, 48 h BaZrO₃: 24.4 wt%; CeO₂: 14.2 wt%
XRD quantitative phase analysis, joint neighbor-pair Lorentzian direct derivation, 72 h BaZrO₃: 26.0 wt%; CeO₂: 14.5 wt%
XRD quantitative phase analysis, joint neighbor-pair Lorentzian direct derivation, 96 h BaZrO₃: 27.2 wt%; CeO₂: 15.9 wt%
XRD quantitative phase analysis, joint neighbor-pair Lorentzian direct derivation, 120 h BaZrO₃: 26.8 wt%; CeO₂: 16.4 wt%
XRD quantitative phase analysis, joint neighbor-pair Lorentzian direct derivation, 144 h BZCYYb: approximately 15 wt%; YSZ: approximately 41 wt%; BaZrO₃: 27.9 wt%; CeO₂: 16.9 wt%
JMAK fit, BaZrO₃ phase-fraction series k: 0.0814 ± 0.0085 h⁻¹; n: 0.57 ± 0.05; R²: 0.9990
JMAK fit, doped-ceria phase-fraction series k: 0.0373 ± 0.0038 h⁻¹; n: 0.71 ± 0.09; R²: 0.9928
Main, pp. 12, 14; SI, p. S13
50:50 wt% BZCYYb–8YSZ mixture aged at 900 °C in dry forming gas, 5 vol% H₂ and 95 vol% N₂
XRD quantitative phase analysis, joint neighbor-pair Lorentzian direct derivation, 0 h A reproducible signal equivalent to 0.9 wt% BaZrO₃ was observed before aging
XRD quantitative phase analysis, joint neighbor-pair Lorentzian direct derivation, 4 h BaZrO₃: 2.5 wt% after subtracting the 0 h signal and renormalizing the four phases to 100 %; no replicate-based uncertainty was available