(1. 遼寧工程技術(shù)大學(xué) 材料加工與表面技術(shù)研究所，阜新 123000；
2. 沈陽工業(yè)大學(xué) 材料科學(xué)與工程學(xué)院，沈陽 110023)
摘 要: 使用熱化學(xué)反應(yīng)熱噴涂技術(shù)，在紫銅表面噴涂制備Al2O3基復(fù)合陶瓷涂層。利用XRD和SEM分析該復(fù)合陶瓷涂層物相組成和組織形貌，并對其熱震性能、抗高溫氧化性能和磨損性能進(jìn)行測試。結(jié)果表明：采用熱化學(xué)反應(yīng)噴涂法在紫銅表面制備的陶瓷涂層內(nèi)部生成陶瓷過渡相Al1.4Si0.3O2.7和Al1.9Si0.5O2.95等，在陶瓷涂層與Ni-Al過渡層間存在金屬間化合物AlNi3；該復(fù)合陶瓷涂層熔化率較高，表面呈珊瑚狀；涂層與紫銅基體結(jié)合牢靠，具有優(yōu)異的高溫抗氧化能力，其磨粒和粘著磨損比紫銅基體分別提高10倍和15倍。
關(guān)鍵字: 紫銅；復(fù)合陶瓷涂層；化學(xué)反應(yīng)熱噴涂
（1. Institute of Materials Processing and Surface Technology, Liaoning Technical University, Fuxin 123000, China;
2. College of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110023, China）
Abstract:Al2O3-based composite ceramic coating was prepared on the surface of copper by thermo-chemical reaction spraying. XRD and SEM were used to analyze the composition and morphology of this composite ceramic coating. The thermal shock, high-temperature anti-oxidation and wear properties of the composite ceramic coating were investigated. The results show that the transition phases, such as Al1.4Si0.3O2.7 and Al1.9Si0.5O2.95, generate within the ceramic, and AlNi3 exists between the coating and Ni-Al transition layer. The melting rate of composite ceramic coating with a coral-like surface is high and the combination of the coating and copper matrix is well. Compared with the pure copper base, the coating has excellent high-temperature anti-oxidation capacity, the abrasive wear and adhesive wear are increased by 10 times and 15 times.
Key words: pure copper; composite ceramic coating; thermo-chemical reaction spraying
