Realization of near-less friction of ta-CNx coating under R32 refrigerant environment

Realization of near-less friction of ta-CNx coating under R32 refrigerant environment
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实现R32制冷剂环境下ta-CNx涂层近乎无摩擦

DOI:
10.1016/j.triboint.2022.107450
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发表时间:
2022
影响因子:
6.2
通讯作者:
Takao Ishimoto
Takao Ishimoto
中科院分区:
工程技术1区
文献类型:
--
作者:
Wooyoung Lee;Motoyuki Murashima;Noritsugu Umehara;Takayuki Tokoroyama;Norihisa Horaguchi;Takao Ishimoto

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利用离子束辅助过滤电弧沉积实现了用钽提高非晶氮化碳的硬度,从而在环境空气中获得低摩擦系数和低比磨损率。在不同的钽放电循环下,在涂覆过程中使用不同的氮气流量制备涂层。通过FESEM、AES、XPS和拉曼分析对磨痕和沉积表面进行观察和分析。 ta-C:Ta200 获得了最低的摩擦系数 (~0.07),其磨损率较低,为 < 1.0 × 10−7mm3/Nm。 XPS分析表明存在非晶态Ta2O5,摩擦系数似乎与涂层中氧的解吸呈正相关。
Improving the hardness of amorphous carbon nitride with tantalum was realized by using ion beam assisted filtered arc deposition to obtain a low friction coefficient and low specific wear rate in ambient air. The coatings were prepared with different nitrogen flow during coating at different discharge cycles of tantalum. The wear scar and as-deposited surfaces were observed and analyzed by means of FESEM, AES, XPS, and Raman analysis. The lowest friction coefficient (~0.07) was obtained for ta-C:Ta200, which exhibited a low specific wear rate of < 1.0 × 10−7mm3/Nm. The XPS analysis revealed the existence of amorphous Ta2O5, and the friction coefficient seemed to be positively correlated with oxygen desorption from the coatings.
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