Results 1 to 10 of about 1,505 (106)

A new bio-oxidation method for removing iron deposits from waterlogged wood of Nanhai I shipwreck, Guangdong, China [PDF]

Engineering Microbiology, 2023
The widespread presence of iron and sulfur compounds such as pyrite in marine waterlogged archeological wood (WAW) can cause irreversible damage to the safety of its preservation.
Yishu Wang, Zijun Zhao, Jianqun Lin, Qinglin Ma, Linxu Chen   +4 more
doaj   +3 more sources

In Situ Gel-Forming System for the Removal of Ferruginous Deposits on Nanhai I Shipwreck [PDF]

Gels
The removal of iron deposits on shipwreck surfaces by mechanical cleaning is labour-intensive work. This study develops an in situ gel and peeling cleaning method, utilising a carboxymethyl chitosan/tannic acid (CMCS/TA) colloidal solution spray on the ...
Jianrui Zha, Ruyi Wang, Jing Du, Naisheng Li, Xiangna Han   +4 more
doaj   +3 more sources

Characterization of degradation and iron deposits of the wood of Nanhai I shipwreck

Heritage Science, 2022
Nanhai I shipwreck was a large wooden merchant ship (22.15 m in length and 9.85 m in width) built in the Southern Song Dynasty (1127–1279 A.D.) of China, which was heavily loaded with a large number of porcelain and iron artifacts. In the South China Sea,
Hongying Zhang, Dawa Shen, Zhiguo Zhang, Qinglin Ma   +3 more
doaj   +2 more sources

Corrosion Layers on Archaeological Cast Iron from Nanhai I. [PDF]

Materials (Basel), 2022
Archaeological iron objects were excavated from the Nanhai I ship from the Southern Song Dynasty that sunk in the South China Sea. Most of these artifacts were severely corroded and fragmented.
Jia M, Hu P, Hu G.
europepmc   +2 more sources

Characterization of glass beads from Nanhai I shipwreck and new evidence of lead tin yellow type II in China

Heritage Science, 2021
Glass beads excavated from Nanhai I shipwreck were investigated with scanning electron microscopy with energy dispersive spectrometer (SEM–EDS), Raman spectroscopy, multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) and X-ray ...
Chenxin Tian, Yihang Zhou, Kai Wang, Jian Sun, Yong Cui, Dongbo Hu   +5 more
doaj   +2 more sources

Corrosion of glaze in the marine environment: study on the green-glazed pottery from the Southern Song “Nanhai I” shipwreck (1127–1279 A.D.)

Heritage Science, 2023
The “Nanhai I” shipwreck is an important discovery in the underwater archaeology of China, and many ceramics have been unearthed. These ceramics are important material artifacts of China’s “Maritime Silk Road” and have considerable significance for the ...
Benyuan Zhou, Qinglin Ma, Zhimin Li, Zhiguo Zhang, Naisheng Li   +4 more
doaj   +2 more sources

Characterizing the sealing materials of the merchant ship Nanhai I of the Southern Song Dynasty

Heritage Science, 2021
Nanhai I is a highly valuable shipwreck of the Southern Song Dynasty for studying various topics, including the shipbuilding techniques. The sealing materials are of significant importance to ensure the ship’s reliability during the voyage across the ...
Yihang Zhou, Kai Wang, Jian Sun, Yong Cui, Dongbo Hu   +4 more
doaj   +2 more sources

Corrosion Behavior of Ancient White Cast Iron Artifacts from Marine Excavations at Atmospheric Condition

Metals, 2022
A large number of iron pot artifacts were excavated from the “Nanhai I” shipwreck. The rapid embrittlement and pulverization of these objects (that have a good matrix) in the atmospheric environment is worthy of attention.
Pei Hu, Minghao Jia, Mohan Li, Jian Sun, Yong Cui, Dongbo Hu, Gang Hu   +6 more
doaj   +2 more sources

The method to soften the concretions of ceramics in the “Nanhai I” Shipwreck of China Southern Song Dynasty (1127–1279AD)

Heritage Science, 2018
The “Nanhai I” shipwreck of the Southern Song dynasty is the existent oldest and the most integrally preserved shipwreck in the world. Inside the shipwreck most of the ancient ceramics were covered with different types of concretions.
Yanrong Wang, Tiequan Zhu, Guicheng Yang, Xian Tan, Daoyang Ye, Haotian Chen   +5 more
doaj   +2 more sources

Opaque ancient K2O–PbO–SiO2 glass of the Southern Song Dynasty with fluorite dendrites and its fabrication

Heritage Science, 2019
Here we first report a piece of K2O–PbO–SiO2 ancient glass opacified by fluorite dendrites with archaeological background. This piece of glass was excavated from Nanhai I shipwreck, a merchant ship once heading for Southeast Asia, but sinking near ...
Yihang Zhou, Yuewen Jin, Kai Wang, Jian Sun, Yong Cui, Dongbo Hu   +5 more
doaj   +2 more sources