“黑漆古”耐腐蚀机理探讨  

A STUDY ON CORROSION-RESISTING MECHANISM OF THE ANCIENT MIRROR "HEI QI GU

作　　者：吴佑实[1] 王昌燧[2] 范崇政[2] 王胜君[2] 李志超[2] 

机构地区：[1]安徽机电学院,芜湖241000 [2]中国科学技术大学,合肥230026

出　　处：《物理学报》1992年第1期170-176,共7页Acta Physica Sinica

基　　金：国家自然科学基金;中国科学技术大学结构分析开放研究实验室基金

摘　　要：“黑漆古”铜镜的表面由非金属层和过渡层组成,价电子结构分析指出,非金属层主要成分Sn_(1-x)Cu_xO_2具有与SnO_2相近的稳定性,而实验数据分析发现,过渡层中,δ相铜锡合金与Sn_(1-x)Cu_xO_2的相界上存在着重合位置点阵(CSL)结构,这种结构降低了相界面上铜原子的能量,使这部分δ相晶粒也十分稳定,从而使整个“黑漆古”表面具有耐腐蚀性能。The surface layer of the bronze mirror 'Hei Qi Gu' is composed of non-metal layer and transition layer. The valent electron structure analysis points out that the main phase of tran-sitionSn1-x CuxO2 is similar to SnO2 in stablility. It was found from study of experimental data that there is the coincidence site lattice structure at the phase boundary between the δ-phase Cu-Sn alloy and Sn1-x CuxO2 in the transition layer. This structure reduces the energy of Cu atoms at the phase boundary and makes the δ-phase Cu-Sn alloy stable, which is the main reason for corrosion resistant of the 'Hei Qi Gu'.

关 键 词：铜镜 耐蚀性 非金属 表面层 青铜 

分 类 号：TG174.44[金属学及工艺—金属表面处理]