Characterization of iron oxides-based red pigments in the ancient Gaya region, South Korea

• Published in: Journal of radioanalytical and nuclear chemistry Vol. 332; no. 12; pp. 5175 - 5184
• Main Authors: Moon, Dong Hyeok, Lee, Na Ra, Han, Woo Rim, Kim, So Jin, Uhm, Young Rang
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01-12-2023; Springer Nature B.V
• Subjects: Chemistry; Chemistry and Materials Science; Diagnostic Radiology; Ferric oxide; Hadrons; Heat treatment; Heavy Ions; Hematite; Inorganic Chemistry; Iron compounds; Iron oxides; Mossbauer spectroscopy; Nuclear Chemistry; Nuclear Physics; Physical Chemistry; Red pigments; South Korea; Hematite; Iron-oxides characterization; Phase analysis; Ancient pigment; Gaya cultural circles; Red ochre
• ISSN: 0236-5731; 1588-2780
• DOI: 10.1007/s10967-023-08993-3

The characteristics of red pigments of the Gaya cultural circles, the ancient federation kingdom in the southern part of the Korean Peninsula, have been investigated using multiple analyses (SEM–EDS, XRD, Raman and Mössbauer spectroscopy). In results, reddish ochre- and pure hematite-based pigments were distinguished. In addition, as the redness of the pigment increased, the proportion of well crystalline and magnetically ordered α-Fe
2
O
3
phase also increased, whereas the amorphous and superparamagnetic Fe
2
O
3
phase were decreased. These results indicate that the ancient Gaya people produced various red pigments according to their use by thermal treatment of reddish ochre and high-purity iron compounds.