【摘要】 本文对Pb_97.4Sn_2.6合金表面在溅射时所产生的一些现象进行了研究。实验在室温下,利用PHI-590型扫描俄歇微探针进行。根据理论计算结果对实验数据进行分析后,观察到了溅射增强扩散效应。当Ar⁺离子能量为5千电子伏,离子流密度为70微安/厘米²时,测得锡在合金中的扩散系数为10^-15厘米²/秒量级,影响层厚度约为200埃。更多还原

【Abstract】 The surface phenomena of Pb_97.4Sn2.4 alloy under the Ar+ ion sputtering have been investigated using PHI-590 scanning Auger microprobe at room temperature. Theoretical analyses of experimental data showed that the ion-bombardment-enhanced diffusion occured with diffusion coefficient up to 10^-15 cm²/s and the thickness of alter layer was about 260 A. The possible explanation is given.更多还原