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    STRUCTURE OF BLACK PATINA ON THE ANCIENT BRONZE MIRRORS
    铜镜黑漆古表层的结构
    Effects of Pb Ion on the Formation of Black Patina of Galvanized Steel Sheet
    铅离子对电镀锌钢板黑变的影响
    Investigation of Black Patina Film on Electrogalvanized Steel Sheets
    电镀锌钢板黑变膜的组成及影响因素
    Kinetic study of black patina on electrogalvanized steel sheets
    电镀锌钢板黑变机理的动力学
    Mechanism of black patina on electrogalvanized steel sheets
    电镀锌钢板的黑变机理
    Effects of lead and illumination on black patina of zinc plating
    铅与光照对镀锌层黑变的影响
    The result has been confirmed to obtain its structural information by X-ray diffraction. It contains Ag_2O. The mechanism and influence factors of black patina have been discussed primarily.
    本文研究在铜-银-金合金表面,经过四种弱有机酸浸泡,形成致密乌黑有光泽的氧化膜,经鉴定主要为Ag_2O,并探讨了Ag_2O氧化膜形成的机理及影响因素。
    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.
    而已穿透腐蚀的黑漆古铜镜残片研细的XRDA结果尚具有基体的强衍射峰,表明黑漆古表层不单含有金属氧化物(主要是SnO2),还存在未被腐蚀而被SnO2所包裹的原合金大小不等的颗粒。
 

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