蔡侯编钟的粉状锈研究

“粉状锈”被称为青铜文物的“癌症”,多少年来,国内外有关专家对于粉状锈的控制和根治始终未能取得明显的进展。本文详细介绍了用XRD,SEM,TEM以及XRFA等方法分析一块被粉状锈严重腐蚀的蔡侯编钟残片的结果,指出粉状锈的主要成分是氯铜矿(Cu_2(OH)_3C1)、赤铜矿(Cu_2O)以及结晶状况甚差的锡石(SnO_2)。而编钟基体内存在的和粉状锈成分相同的腐蚀沟漕,则表明粉状锈腐蚀是一种晶间腐蚀过程。显然,这一发现对粉状锈的形成机理研究有着十分重要的意义。     

RESEARCH ON POWDERY CORROSION OF THE SERIALS BELLS FROM CAI HOU TOMB

"Powdery corrosion" is called "cancer" of cultural relics of bronze. For many years theexperts concerned at home and abroad cannot make distinct progress in the control or cure ofpowdery corrosion. This paper introduces in detail analyses of XRD, SEM. TEM and XRFA on afragment of serials bells with serious powdery corrosion from the Cai Hou Tomb, pointingout that the components of powdery corrosion are mainly atacamite (Cu_2(OH)_3Cl), cuprite(Cu_2O) and cassiterite (SnO_2) in the worse crystalline state. In the bell's matrix, there arecorrosion gullies which has the same phase components as the powdery corrosion. Obviously,this discovery has very important significance for studying the formation mechanism ofpowdery corrosion.