STRUCTURE OF BLACK PATINA ON THE ANCIENT BRONZE MIRRORS  

铜镜黑漆古表层的结构

作　　者：马肇曾[1] 杜凌[1] 方春英[1] 尹秀兰[1] 金莲姬[1] 

机构地区：[1]北京科技大学化学系

出　　处：《International Journal of Minerals,Metallurgy and Materials》1996年第2期126+121-126,共7页矿物冶金与材料学报（英文版）

摘　　要：X-ray diffaction analysis(XRDA)data of the black or brown patina on the surfaces of eight kinds of bronze mirror samples show 4 or 5 broad diffuse peaks which corresponding to almost the same 20 angle, while their matixes does not.These results indicate that those diffuse peaks were produced by the SnO2, microcrystals of 3 ￣5 nm size contained in the black or brown patina.The matrix of unearthed black patina bronze mirror numbered 223, gives strong XRDA diffraction peaks, indicating that there are a large amounts of non-oxidized bronze alloy particles surrounded by SnO2,which shows that the black patinas are not wholly metallic oxides (mainly SnO2),there are also a lot of original alloys of different sizes in grain in the patina.The bright-field image of the black patina sample gives the same result.X-ray diffaction analysis(XRDA)data of the black or brown patina on the surfaces of eight kinds of bronze mirror samples show 4 or 5 broad diffuse peaks which corresponding to almost the same 20 angle, while their matixes does not.These results indicate that those diffuse peaks were produced by the SnO2, microcrystals of 3 ￣5 nm size contained in the black or brown patina.The matrix of unearthed black patina bronze mirror numbered 223, gives strong XRDA diffraction peaks, indicating that there are a large amounts of non-oxidized bronze alloy particles surrounded by SnO2,which shows that the black patinas are not wholly metallic oxides (mainly SnO2),there are also a lot of original alloys of different sizes in grain in the patina.The bright-field image of the black patina sample gives the same result.

关 键 词：black patina on ancient bronze mirrors SnO2 microcrystal metallic corrosion 

分 类 号：O655.4[理学—分析化学]