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Effect of O2 flow rate on the structure, wettability and tribo-mechanical behaviour of Zr-O-N thin films
Surfaces and Interfaces ( IF 6.2 ) Pub Date : 2021-09-04 , DOI: 10.1016/j.surfin.2021.101441
Linda Aissani 1, 2 , Mamoun Fellah 3, 4 , Ahlam Belgroune 1, 5 , Aleksei Obrosov 6 , Mohammed Abdul Samad 7, 8 , Akram Alhussein 5
Affiliation  

Structural and tribo-mechanical properties of Zr-O-N films deposited by reactive magnetron sputtering in a mixture of Ar (flow rate = 80 sccm), N2 (flow rate = 20 sccm) and O2 with a varying flow rate of 0 to 12 sccm were investigated. The films were characterized using scanning electron microscopy, energy dispersive x-ray analysis, atomic force microscopy, nanoindentation and wear tests. Oxygen content have a significant effect on the microstructure, wettability, tribo-mechanical properties of Zr-O-N films. The Zr-O-N films showed a dense structure with a mixture of zirconium oxides and nitrides and the preferred orientation changed from (111) ZrN to (200) ZrN with increasing O2 flow rate. The ZrON film, deposited at an oxygen flow rate of 10 sccm exhibited the highest contact angle (147°), the highest hardness (27.1 GPa), the lowest friction coefficient (0.36) and the lowest wear rate (5.8 × 10−7 mm3.Nm−1). The improvement in the tribological performance of the ZrON film deposited at 10 sccm is attributed to the improved hardness and increased H/E and H3/E2 ratios, due to the formation of a hard solid solution by the diffusion of oxygen.



中文翻译:

O2流速对Zr-ON薄膜结构、润湿性和摩擦力学行为的影响

通过反应磁控溅射在 Ar(流速 = 80 sccm)、N 2(流速 = 20 sccm)和 O 2的混合物中沉积的 Zr-ON 薄膜的结构和摩擦机械性能,流速从 0 到 12 sccm 进行了调查。使用扫描电子显微镜、能量色散 X 射线分析、原子力显微镜、纳米压痕和磨损测试对薄膜进行表征。氧含量对Zr-ON薄膜的微观结构、润湿性、摩擦机械性能有显着影响。Zr-ON 薄膜显示出致密的结构,其中含有锆氧化物和氮化物的混合物,随着 O 2 的增加,择优取向从 (111) ZrN 变为 (200) ZrN流速。以 10 sccm 的氧气流速沉积的 ZrON 薄膜表现出最高的接触角 (147°)、最高的硬度 (27.1 GPa)、最低的摩擦系数 (0.36) 和最低的磨损率 (5.8 × 10 -7 mm) 3 .Nm -1)。以 10 sccm 沉积的 ZrON 膜摩擦学性能的改善归因于硬度的提高以及H/EH 3 /E 2比率的增加,这是由于氧扩散形成了硬固溶体。

更新日期:2021-09-04
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