Synthesis and Mechanical Properties of Microlaminate Coatings using Ion Beam Assisted Deposition

这项研究旨在更好地了解离子 在金属上产生有用涂层的束辅助沉积 合金. 特别令人感兴趣的是几个过程的影响， 涂层材料的机械性能的变量。 膜 控制形态、成分和几何形状以优化 薄膜性能 重点是提高断裂韧性， 通过产生交替氧化物来保持抗氧化性 （氧化铝）和金属（铝）层。 力学性能 通过超低载荷压痕法测定，拉伸 测试、四点弯曲和压痕断裂技术。 微层合板的结构与微层合板的厚度相关。 工艺参数和力学性能。

This research is aimed at developing a better understanding of ion beam-assisted deposition to produce useful coatings on metal alloys. Of particular interest are the effects of several process variables on the mechanical behavior of the coated materials. Film morphology, composition, and geometry are controlled to optimize film properties. Emphasis is on improved fracture toughness while maintaining oxidation resistance by creating alternating oxide (alumina) and metal (aluminum) layers. Mechanical properties are determined by the ultra-low load indentation method, tensile testing, four-point bending, and indentation-fracture techniques. The structure of the microlaminates is correlated with the processing parameters and mechanical properties.