Fig. 3: Crystal structure and the reversible phase transition properties of λ-Al0.12Ti2.88O5.
From: Sub-minute synthesis and modulation of β/λ-MxTi3-xO5 ceramics towards accessible heat storage
a The XRD Rietveld refinement result of the as-synthesized λ-Al0.12Ti2.88O5 (λ phase: PDF card No. 82-1137; β phase: PDF card No. 82-1138). Source data are provided as a Source Data file. b The HAADF-STEM image and electron energy loss spectroscopy atomic mapping of the as-prepared λ-Al0.12Ti2.88O5. c High-resolution HAADF-STEM image of the λ-Al0.12Ti2.88O5 phase along the [010] zone axes. The inset displays the atomic structure model corresponding to the HAADF-STEM image, and the brightest columns in the image represent the Ti or Al atoms. d XRD patterns of λ-Al0.12Ti2.88O5 in the range of 0.2 MPa to 6 GPa. e HTXRD patterns of β-Al0.12Ti2.88O5 in the range of 300 K and 463 K. f Differential scanning calorimetry curves of the β-AlxTi3-xO5 (x = 0.10, 0.11, 0.12 and 0.13). g Fast Fourier transform of Supplementary Fig. 59 at the interface shows that the β and λ grains have a specific orientation relationship of [010]β//[010]λ, [001]β//[001], and (100)β//(100)λ. h HAADF-STEM image of an β/λ-Al0.12Ti2.88O5 phase interface taken from the post-compression λ-Al0.12Ti2.88O5 along the [010] zone axes. i The close-up integrated differential phase contrast (iDPC)-STEM image revealed the atomic stacking order at the phase interface in the region highlighted by the orange dashed square in (h).
