A side-by-side comparison of the solidification dynamics of quasicrystalline and approximant phases in the Al–Co–Ni system

Han, I.; Xiao, X.; Sun, H.; Shahani, A.J.

doi:10.1107/S2053273318017114

Acta Crystallographica Section A
Acta Crystallographica
Section A FOUNDATIONS AND ADVANCES

IUCr IT WDC

home archive editors for authors for readers submit subscribe open access

view article

Figure 8
Two-point Pearson autocorrelation maps of four segmented images (inset): (a) random noise at the one-pixel scale, (b) random noise at the ten-pixel scale, (c) square pattern with periodicity of five pixels, and (d) square pattern with periodicity of 20 pixels. Features (white) in (c)–(d) have the same size as 3 pixels. It can be seen in (a), (b) that the initial descent in the Pearson correlation (from g = 1 at $[{\bf r}]$ = 0 to $[g \simeq 0]$ for $[|{\bf r}| \simeq r_c]$ ) corresponds to the feature size r_c; meanwhile, the high-frequency oscillations in (c), (d) correspond to the distances between features in the images (separated by $[{\bf r}]$ ). Both scale bars in (d) measure 20 pixels.

FOUNDATIONS
ADVANCES

ISSN: 2053-2733

Volume 75| Part 2| March 2019| Pages 281-296

https://doi.org/10.1107/S2053273318017114

Open

access

Follow Acta Cryst. A

Search IUCr Journals		doi		Advanced search
Author		volume	page