Diamond wear properties in cold plasma jet

Xu, Wenji; Huang, Shuai; Chen, Faze; Song, Jinlong; Liu, Xin

doi:10.1016/j.diamond.2014.07.008

Cited by 20 publications

(8 citation statements)

References 18 publications

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“…The NAPPJ source used for this study was described previously, while the frequency of the Alternating Current (AC) power supply was adjusted to be 60 kHz and the discharge power was nearly 3.0 W. The flow rate of nitrogen (of purity 99.999%) was controlled to be 10.0 slm by a mass flow controller. Once nitrogen was introduced through the source and high voltage was applied, a plasma jet with a diameter of ~4 mm and a length of ~15 mm was generated.…”

Section: Methodsmentioning

confidence: 99%

Plasma Hydrophilization of Superhydrophobic Surface and Its Aging Behavior: The Effect of Micro/nanostructured Surface

Chen

Huang

et al. 2016

Surface & Interface Analysis

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Plasma treatment is a versatile tool for surface modifications, and plasma-induced hydrophilicity has a well-known aging behavior. In this paper, plasma hydrophilization and the subsequent aging behavior of superhydrophobic and hydrophobic surfaces are comparatively investigated. Static water contact angle measurement and X-ray photoelectron spectroscopy show that, compared with the hydrophobic surface, the superhydrophobic surface requires more plasma dose to completely change its wettability even after considering the difference in their initial wettability, and the corresponding aging speed is also obviously retarded. A tentative model based on the surface micro/nanostructures is presented to explain the results.

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Section: Methodsmentioning

confidence: 99%

Plasma Hydrophilization of Superhydrophobic Surface and Its Aging Behavior: The Effect of Micro/nanostructured Surface

Chen

Huang

et al. 2016

Surface & Interface Analysis

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“…The APPJ source used for this study was described previously [31], while the frequency of the AC power supply was adjusted to 60 kHz and the discharge power was nearly 2.50 W for the APPJ treatment. The flow rate of nitrogen (of purity 99.999%) was controlled to be 10 standard litres per minute by a mass flow controller.…”

Section: Methodsmentioning

confidence: 99%

Hydrophilic patterning of superhydrophobic surfaces by atmospheric‐pressure plasma jet

Chen

et al. 2015

Micro & Nano Letters

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An atmospheric-pressure plasma jet (APPJ) has been developed to fabricate hydrophilic patterns on superhydrophobic surfaces. The surface morphologies, chemical compositions and wettability were investigated using scanning electron microscopy, Fourier-transform infrared spectrophotometry, X-ray photoelectron spectroscopy and water contact angle measurement. The results show that the superhydrophobic areas exposed to the APPJ could be completely converted to superhydrophilic without changing the macro and microsurface morphologies. The transition from superhydrophobicity to superhydrophilicity is because of the decrease of hydrophobic fluorinecontaining functional groups and the increase of the hydrophilic oxygen-containing functional groups. Combined with scanning and mask technology, complex and large-area wettability contrast patterns can be easily fabricated on various superhydrophobic substrates by the APPJ treatment. Additionally, the retention of intrinsic microstructures enables the surface to recover superhydrophobicity only by using surface fluorination. This results in a rapid reversible transition between superhydrophilicity and superhydrophobicity.

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“…Increasing the cutting temperature negatively affects the material swelling and tool wear while affecting the quality of surface finish. Nitrogen cold plasma jet and magnetic field assistance are recently developed techniques that could assist the SPDT process and improve the quality of optical surface generation mechanisms without negatively affecting the diamond cutting process (Xu et al, 2012;Xu et al, 2014;Yuan et al, 2017;Zhu et al, 2018;Hatefi and Abou-El-Hossein, 2020a).…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the effects of magnetic field assistance on the quality of surface finish for sustainable manufacturing of ultra-precision single-point diamond turning of titanium alloys

Hatefi

Abou-El-Hossein

2022

Front. Mech. Eng.

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Single-point diamond turning (SPDT) is the state-of-the-art technology for ultra-precision manufacturing of optical products with optical surface roughness down to 1 nm. The SPDT technology has an important role in advanced manufacturing of critical components in different fields of industry. In a SPDT process, different cutting mechanisms affect the optical surface generation and reduce the quality of the turned product. Different efforts have been undertaken to improve the machining conditions as well as optical surface generation mechanisms. Recently, the application of magnetic field assistance in non-conventional SPDT platforms has shown promising results in terms of improving the cutting stability as well as the quality of surface finish. The application of magnetic field assistance becomes more important in SPDT of hard-to-cut materials including titanium alloy. In this study, magnetic field assistance is used in SPDT of Ti-6Al-4V alloy. The machining results show that using this technique could significantly improve the machining conditions and the quality of optical surface generation. The magnetic field assisted SPDT with air coolant could successfully improve the quality of surface finish by 62.5% when compared to non-magnetic purely mechanical SPDT process in dry cutting conditions. Magnetic field assistance is a passive machining technique, environmentally friendly, and it can promote green manufacturing and clean production in ultra-precision SPDT applications.

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Diamond wear properties in cold plasma jet

Cited by 20 publications

References 18 publications

Plasma Hydrophilization of Superhydrophobic Surface and Its Aging Behavior: The Effect of Micro/nanostructured Surface

Plasma Hydrophilization of Superhydrophobic Surface and Its Aging Behavior: The Effect of Micro/nanostructured Surface

Hydrophilic patterning of superhydrophobic surfaces by atmospheric‐pressure plasma jet

Experimental investigation on the effects of magnetic field assistance on the quality of surface finish for sustainable manufacturing of ultra-precision single-point diamond turning of titanium alloys

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