[article] 
inStudies in conservation > Vol.70 N°5-6(2025; July-August) (2025-07-01) . - P. 501-517

Titre :	A Multi-Method Investigation of Ferruginous Concretions on Ceramics from Nan’ao No. I Shipwreck
Type de document :	texte imprimé
Année de publication :	2025
Article en page(s) :	P. 501-517
Langues :	Anglais (eng)
Catégories :	Archéologie sous-marine -- Chine Céramique -- Chine -- 1368-1644 (Dynastie des Ming) -- Conservation et restauration Corrosion -- Analyse Fourier, Spectroscopie infrarouge à transformée de Microscopie Microscopie électronique à balayage Spectroscopie de fluorescence Spectroscopie infrarouge proche Spectroscopie Raman
Index. décimale :	7.025:738 Conservation, restauration de céramique
Résumé :	ABSTRACT The Nan’ao No. I shipwreck, dating back to the Wanli period of China's Ming Dynasty (1573–1620 CE), was discovered in the South China Sea, from which a large number of ceramics was meticulously excavated. This study employs a comprehensive multi-method approach, encompassing techniques such as multispectral imaging, microscopy, scanning electron microscopy (SEM), Raman spectroscopy, Fourier transform infrared reflectance (FTIR) spectroscopy, near-infrared reflectance (NIR) spectroscopy, and X-ray fluorescence (XRF) analysis, to investigate the ferruginous concretions found on the ceramic sherds from the Nan’ao I shipwreck. The findings reveal that these concretions are predominantly distributed across defective areas of the ceramic surfaces, including pitted and cracked regions. The primary constituents of the concretions are identified as goethite, hematite, and lepidocrocite, with the varying proportions of these components potentially contributing to the differing colors of the concretions. Furthermore, iron sulfides may also play a significant role in the composition of the concretions.
En ligne :	https://www.tandfonline.com/doi/full/10.1080/00393630.2024.2422252

[article] A Multi-Method Investigation of Ferruginous Concretions on Ceramics from Nan’ao No. I Shipwreck [texte imprimé] . - 2025 . - P. 501-517.
Langues : Anglais (eng)
in Studies in conservation > Vol.70 N°5-6(2025; July-August) (2025-07-01) . - P. 501-517

Catégories :	Archéologie sous-marine -- Chine Céramique -- Chine -- 1368-1644 (Dynastie des Ming) -- Conservation et restauration Corrosion -- Analyse Fourier, Spectroscopie infrarouge à transformée de Microscopie Microscopie électronique à balayage Spectroscopie de fluorescence Spectroscopie infrarouge proche Spectroscopie Raman
Index. décimale :	7.025:738 Conservation, restauration de céramique
Résumé :	ABSTRACT The Nan’ao No. I shipwreck, dating back to the Wanli period of China's Ming Dynasty (1573–1620 CE), was discovered in the South China Sea, from which a large number of ceramics was meticulously excavated. This study employs a comprehensive multi-method approach, encompassing techniques such as multispectral imaging, microscopy, scanning electron microscopy (SEM), Raman spectroscopy, Fourier transform infrared reflectance (FTIR) spectroscopy, near-infrared reflectance (NIR) spectroscopy, and X-ray fluorescence (XRF) analysis, to investigate the ferruginous concretions found on the ceramic sherds from the Nan’ao I shipwreck. The findings reveal that these concretions are predominantly distributed across defective areas of the ceramic surfaces, including pitted and cracked regions. The primary constituents of the concretions are identified as goethite, hematite, and lepidocrocite, with the varying proportions of these components potentially contributing to the differing colors of the concretions. Furthermore, iron sulfides may also play a significant role in the composition of the concretions.
En ligne :	https://www.tandfonline.com/doi/full/10.1080/00393630.2024.2422252