Characterization of nanoscale detonation carbon produced in a pulse gas-detonation device

Штерцер, А. А.; Rybin, Denis K.; Ulianitsky, Vladimir Yu.; Park, W.; Datekyu, Masanari; Wada, Takeshi; Kato, Hidemi

doi:10.1016/j.diamond.2019.107553

Cited by 19 publications

(9 citation statements)

References 27 publications

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“…The additives used in [ 18 ] were TiO 2 (brand R-FC5), SiO 2 (Rosil-175 silica filter) and technical SiC powders with an average particle size of 180 nm, 17 nm and 10 μm, respectively. In this work, we used as an additive nanoscale detonation carbon (NDC) whose production method and properties are described in [ 33 , 34 , 35 ]. NDC is the product of the decomposition of acetylene as a result of the detonation of the acetylene–oxygen mixture C 2 H 2 + k O 2 with a low oxygen content ( k < 1).…”

Section: Methodsmentioning

confidence: 99%

Cyclic Impact Compaction of an Ultra High Molecular Weight Polyethylene (UHMWPE) Powder and Properties of the Compacts

et al. 2022

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Experiments on Cyclic Impact Compaction (CIC) of UHMWPE powder GUR 4120 were carried out on a laboratory hydro-pneumatic impact device. This device provides impact energies of up to 1 kJ with a frequency of impacts of 9 s−1 and enables producing dense and robust compacts in the form of disks with a diameter of up to 60 mm and a height of up to 24 mm. The optimal parameters of the CIC were determined, which are the preheating temperature of the powder, the impact energy and the number of impacts. The strength, Brinell hardness and elongation of the resulting compacts with a diameter of 40 mm and a height of 15 mm were 37.5 MPa, 49.0 MPa and 470%, respectively. The possibility of activating UHMWPE powder by explosive loading was studied. It was found that the explosive pretreatment reduces the mechanical properties of the resultant compacts. The CIC method is suitable for the manufacture of UHMWPE-based composites with nano-additives, as evidenced by the successful production of compacts containing nanoscale detonation carbon as an additive. The results of the present study show that the CIC method is promising for the industrial production of small-sized UHMWPE parts.

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Section: Methodsmentioning

confidence: 99%

Cyclic Impact Compaction of an Ultra High Molecular Weight Polyethylene (UHMWPE) Powder and Properties of the Compacts

et al. 2022

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“…The NDC obtained at k = 0.11 consists of rounded particles with a size of tens of nanometers (Figure 2a), while that obtained at k = 0.68 consists of graphene-like particles with an in-plane size of 100-200 nm and a thickness of up to 20 nm (Figure 2b). Transmission electron microscopy studies of the carbon particles proved that the rounded particles are hollow [18]. In this work, cytotoxicity of NDC powders with these two morphologies was examined.…”

Section: Fabrication and Characteristics Of Ndcmentioning

confidence: 96%

“…The fabrication process uses gaseous detonation in a controlled mode. The structural characteristics of the fabricated NDC have been reported in [18]. The product contains ultra-fine hollow carbon particles and/or graphene nano-sheets, depending on the concentration of oxygen in the acetylene-oxygen detonating mixture.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale Detonation Carbon Demonstrates Biosafety in Human Cell Culture

et al. 2022

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The production method of nanoscale detonation carbon (NDC) has recently been developed at Lavrentyev Institute of Hydrodynamics SB RAS. This method uses the reaction of acetylene with oxygen conducted in the detonation mode in fuel-rich acetylene–oxygen mixtures. The morphology and structural features of the NDC particles can be varied by changing the concentration of oxygen in the gaseous mixtures. The particles of NDC can serve as reinforcements in metal matrix composites and additives imparting electrical conductivity to polymer matrix composites. Before NDC can be considered for industrial applications, it is necessary to address the related biological safety concerns. The present work was aimed at determining the cytotoxicity of NDC. The NDC powders with two morphologies (obtained using different acetylene/oxygen ratios) were tested on HEK293A human cells. The NDC powder was added to the culture medium in concentrations ranging from 10 ng/mL to 400 μg/mL. The cell viability was determined by a colorimetric EZ4U test and a real-time cell analyzer xCELLigence. None of the NDC samples showed a cytotoxic effect. The results of this study allow us to recommend NDC as a safe and useful product for the development of advanced carbon-based and composite materials.

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“…However, the explosive mixtures can detonate even at low contents of the oxidizer. In these cases, the products of detonation contain different forms of nanocarbon [48][49][50][51][52]. For example, the acetylene-oxygen mixture detonates producing solid carbon when parameter k changes from 0.11 to 0.70.…”

Section: Formation Of Carbon and Carbon-containing Phases In The Coatmentioning

confidence: 99%

Computer-Controlled Detonation Spraying: Flexible Control of the Coating Chemistry and Microstructure

Ulianitsky

Dudina

Штерцер

et al. 2019

Metals

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This article is a focused review aimed to describe the potential of the computer-controlled detonation spraying (CCDS) for producing and designing coatings with variable chemical and phase compositions and microstructure and promising properties. The development of the detonation spraying method is briefly analyzed from a historical perspective and the capabilities of the state-of-the art facilities are presented. A key advantage of the CCDS is the possibility of using precisely measured quantities of the explosive gaseous mixtures for each shot of the detonation gun and different oxygen to fuel ratios, which can create spraying environments of different chemical properties—from severely oxidizing to highly reducing. The significance of careful adjustment of the spraying parameters is shown using material systems that are chemically sensitive to the composition of the spraying environment and temperature. Research performed by the authors on CCDS of different materials—metals, ceramics, intermetallics and metal-ceramic composites is reviewed. Novel applications of detonation spraying using the CCDS technology are described.

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Characterization of nanoscale detonation carbon produced in a pulse gas-detonation device

Cited by 19 publications

References 27 publications

Cyclic Impact Compaction of an Ultra High Molecular Weight Polyethylene (UHMWPE) Powder and Properties of the Compacts

Cyclic Impact Compaction of an Ultra High Molecular Weight Polyethylene (UHMWPE) Powder and Properties of the Compacts

Nanoscale Detonation Carbon Demonstrates Biosafety in Human Cell Culture

Computer-Controlled Detonation Spraying: Flexible Control of the Coating Chemistry and Microstructure

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