利用Nd:YAG脉冲激光对Al2O3陶瓷表面进行铜合金化试验。在陶瓷表面得到了成形良好的铜合金层。金相显微镜、SEM分析结果显示,陶瓷基体与合金层界面结合良好,合金层厚度比较均匀,平均厚度为40～50μm。并通过EDS能谱分析和XRD分析发现,合金层以α-Al2O3和CuAlO2的形式存在。CuAlO2能改善铜与陶瓷的润湿性。

Copper alloying on the alumina ceramics was carried out by Nd:YAG pulsed laser. A layer of copper alloy with good profile was deposited on the surface of alumina ceramics. Optical microscope(OM), Scanning electron microscope (SEM) analysis showed that the bonding between the copper alloy layer and the substrate is excellent,The thickness of alloy layer is relatively uniform with the average thickness of 40～50μm. X-ray diffraction (XRD) and Energy-dispersive spectrometry (EDS) analysis showed that α-Al2O3 and CuAlO2 was detected in the alloy layer. The CuAlO2 can substantially improve wettability between the copper and alumina ceramics.