Highly pure Cr₂AlC powders were synthesized and deposited for the first time by cold spray technology on stainless steel substrates. The Cr₂AlC coatings were relative dense, up to 91%, and present high purity (> 98%) since only small traces of Cr₂Al, Al₂O₃ and Cr₂O₃ were detected by XRD, SEM and EDX. The microstructure of the coatings is homogeneous, although some preferential orientation in the basal plane was observed by XRD pole figures. The adhesion between the coating and the substrate is strong, and compressive residual stresses up to 300 MPa in the coating were determined by XRD. Furthermore, a conventional YSZ Thermal Barrier Coating (TBCs) was deposited by Atmospheric Plasma Spray (APS) on top of the cold sprayed Cr₂AlC coating in order to demonstrate the processing feasibility of Cr₂AlC MAX phases as a bond-coat layer.

合成了高纯度的Cr ₂ AlC粉末，并通过冷喷涂技术首次将其沉积在不锈钢基材上。Cr ₂ AlC涂层相对致密，最高可达91％，并且由于只有少量痕量的Cr ₂ Al，Al ₂ O ₃和Cr ₂ O ₃而呈现出高纯度（> 98％）。用XRD，SEM和EDX检测。涂层的微观结构是均匀的，尽管通过XRD极图观察到了一些在基面上的优先取向。涂层与基材之间的附着力很强，并且通过XRD确定了涂层中高达300 MPa的压缩残余应力。此外，通过大气等离子喷涂（APS）在冷喷涂Cr ₂ AlC涂层的顶部沉积常规的YSZ热障涂层（TBC），以证明Cr ₂ AlC MAX相作为粘结涂层的加工可行性。