High-speed thermal plasma deposition of copper coating on aluminum surface with strong substrate adhesion and low transient resistivity

Сивков, А. А.; Shanenkova, Yuliya; Saigash, A. S.; Shanenkov, Ivan

doi:10.1016/j.surfcoat.2016.03.029

Cited by 21 publications

(8 citation statements)

References 25 publications

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“…1). Its analysis showed the closeness of the synthesized powder to the structural model of ZnO of the hexagonal crystal system (space group P63mc (no.186)) with the lattice parameters a=b=3.24982 Å, c=5.20661 Å (card number 36-1451) [32]. A full-profile structural analysis allowed estimating the average value of the coherent-scattering regions (CSR) for the crystalline phase ZnO, which was equal to ~124.0 nm, as well as the average level of internal microscopic strains in the crystal structure (∆d/d=0.043·10 -3 ).…”

Section: Resultsmentioning

confidence: 80%

Plasma dynamic synthesis of ultradispersed zinc oxide and sintering ceramics on its basis by SPS method

Shanenkova

Сивков

Ивашутенко

et al. 2017

J. Phys.: Conf. Ser.

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Abstract. Zinc oxide is a well-known semiconductor material having good electrical, optical and catalytic properties. It can be used in different areas from cosmetics to drug delivery and biosensors. The synthesis of nanosized zinc oxide is an urgent task for obtaining ZnO-based ceramics with enhanced physical properties. This work shows the possibility to implement the plasma dynamic synthesis of zinc oxide in one short-term process (less than 1 ms) using an electrodischarge zinc-containing plasma jet, flowing into oxygen atmosphere. It allows synthesizing a mono-crystalline powder with particle size distribution from tens to hundred nanometers. The synthesized powdered product is investigated using by X-Ray diffractometry (XRD), scanning electron microscopy and high-resolution transmission electron microscopy. According to XRD, the obtained product consists of hexagonal zinc oxide with lattice parameters a = b = 3.24982 Å, c = 5.20661 Å that is clearly confirmed by microscopy data. This powder was used to produce a bulk ceramics sample on its basis by spark plasma sintering. The influence of sintering parameters on the structure of the resulting sample was studied. The optimal parameters were found which allows obtaining the more dense ceramics with a better microstructure. It was also found that the absence of exposure time after reaching the working temperature and pressure allows decreasing the porosity of ceramics.

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Section: Resultsmentioning

confidence: 80%

Plasma dynamic synthesis of ultradispersed zinc oxide and sintering ceramics on its basis by SPS method

Shanenkova

Сивков

Ивашутенко

et al. 2017

J. Phys.: Conf. Ser.

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“…The authors of the work [5] copper-tin can more efficiently and selectively recover the CO2 to CO in a wide range of potentials [6]. This paper shows a new unique method for obtaining materials based on tin-copper in a high-speed plasma jet generated by a coaxial magnetoplasma accelerator with copper electrodes [7], as well as the creation on their basis of bulk samples using a spark plasma sintering installation. Change in the density and porosity of the obtained bulk samples based on Cu-Sn, as well as their chemical and phase composition were studied with increasing sintering temperature.…”

Section: Introductionmentioning

confidence: 93%

Investigation of ceramics based on Cu-Sn powder obtained by plasma dynamic method

Shanenkova

Сивков

Ивашутенко

et al. 2017

J. Phys.: Conf. Ser.

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Phase analysis study of the copper-aluminum contact pair obtained by plasma dynamic method A Sivkov, A Saygash, J Kolganova et al. Copper-tin alloys are intensively investigated due to their thermal and chemical stability in combination with good mechanical properties. This work shows the possibility to obtain Cu-Sn ceramics by spark plasma sintering using nanoscale powders consisting of copper and tin, synthesized by plasma dynamic method. This method is implemented by using a coaxial magnetoplasma accelerator with copper electrodes and adding the solid precursor (tin) in the accelerator before carrying out the synthesis process. The synthesized Cu-Sn powders were investigated by X-Ray diffractometry and transmission electron microscopy. It was determined that the final material consists of phase Cu41Sn11. Using this product, the bulk ceramics samples were obtained by spark plasma sintering at different temperatures (150 °С, 250 °С and 500 °С). The changes in microstructure of copper-tin ceramics in dependence on the sintering temperature were also studied. After analyzing all ceramics samples by X-Ray diffractometry and scanning electron microscopy methods, it was found that the optimal temperature for sintering Cu-Sn ceramics, which was made of the powder synthesized by a plasma dynamic method, was equal to 250 °С at pressure 60 MPa. At these conditions, the ceramics sample had the lowest porosity with the smallest grain size.

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“…Wetting and spreading is central to many natural phenomena and industrial operations such as coating, spray cooling, lubrication etc. [1][2][3][4]. Considerable amount of paper is devoted to study liquid spreading along the smooth solid surface experimentally [5][6][7], numerically [8,9] and analytically [10].…”

Section: Introductionmentioning

confidence: 99%

Wetting and spreading of droplets on rough aluminum surfaces

Islamova

Ponomarev

2019

EPJ Web Conf.

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The wetting and spreading of distilled water droplets on abrasion-treated aluminum alloy AlMg 6 surfaces were studied. Using the shadow method, the dependences of the dynamic contact angle and hysteresis on the arithmetic mean of the profile deviation were obtained. Based on the analysis of the height and hybrid 3D roughness parameters, a relationship between the texture and spreading of the droplet is established.

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High-speed thermal plasma deposition of copper coating on aluminum surface with strong substrate adhesion and low transient resistivity

Cited by 21 publications

References 25 publications

Plasma dynamic synthesis of ultradispersed zinc oxide and sintering ceramics on its basis by SPS method

Plasma dynamic synthesis of ultradispersed zinc oxide and sintering ceramics on its basis by SPS method

Investigation of ceramics based on Cu-Sn powder obtained by plasma dynamic method

Wetting and spreading of droplets on rough aluminum surfaces

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