Surface chromium on Terracotta Army bronze weapons is neither an ancient anti-rust treatment nor the reason for their good preservation.
Marcos Martinón-Torres,
Xiuzhen Li,
Yin Xia,
Agnese Benzonelli,
Andrew Bevan,
Shengtao Ma,
Jianhua Huang,
Liang Wang,
Desheng Lan,
Jiangwei Liu,
Siran Liu,
Zhen Zhao,
Kun Zhao,
Thilo Rehren
May 10, 2019
For forty years, there has been a widely held belief that over 2,000 years ago the Chinese Qin developed an advanced chromate conversion coating technology (CCC) to prevent metal corrosion. This belief was based on the detection...