摘要
The black patina on some ancient Chinese bronze mirrors is known as 'Black Lacquer Antique'(BLA) or 'Hei-qi-qu', which looks jet-black and shiny. BLA's were corroded slowly, one of them was about 10^(-4)mm per year in the soil. Many scholars have studied the composition and structure of BLA, but the formation remains obscure. In this paper the formation of BLA on the surface of bronze mirror samples induced by humic acids under different conditions has been studied.
The black patina on some ancient Chinese bronze mirrors is known as 'Black Lacquer Antique'(BLA) or 'Hei-qi-qu', which looks jet-black and shiny. BLA's were corroded slowly, one of them was about 10^(-4)mm per year in the soil. Many scholars have studied the composition and structure of BLA, but the formation remains obscure. In this paper the formation of BLA on the surface of bronze mirror samples induced by humic acids under different conditions has been studied.