Polishing nanodiamonds

Artemov, A. S.

doi:10.1134/1.1711453

Cited by 30 publications

(19 citation statements)

References 2 publications

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“…They have the smallest particle size among different kinds of synthetic diamonds, typically in the range of $10 nm, and exhibit outstanding mechanical, optical, electrical, and thermal properties [1]. This makes DNDs promising in a diversity of areas of science and technology, ranging from the 'conventional' applications such as abrasives, cutting and polishing tools [2,3], to the 'cutting-edge' ones -drug delivery, biomedical imaging, non-toxic contrast agents [4][5][6][7], magnetic sensors [8], composites [9,10], and quantum computing [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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On the relation between chemical composition and optical properties of detonation nanodiamonds

Kirmani

Peng

Mahfouz

et al. 2015

Carbon

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a b s t r a c tThe morphology and presence of impurities strongly influence mechanical, optical, electrical, and thermal properties of detonation nanodiamonds (DNDs). Here we report insights on the chemical composition and its effect on the optical properties of the DNDs obtained by rate-zonal density gradient ultracentrifugation. Herein, for the first time, a detailed valence band structure of as-prepared and oxidized DNDs is reported. Photoemission spectroscopy (PES) measurements demonstrate that the defects, originating from fullerene-like C bonding in the sp 2 shells of the DNDs, are governing the literature-reported loss of the emission spectral features arising from the nitrogen-vacancy (NV) center excitations. X-ray photoelectron spectroscopy (XPS) measurements reveal that nitrogen is present in the DNDs in the form of N-O bonded species located at the surface region/sp 2 shells, while in core of the DND it is in the form of N-C/N@C species.

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Section: Introductionmentioning

confidence: 99%

“…The DNDs are known to comprise of an sp 3 (diamond) carbon core covered with a shell of sp 2 carbon [24,25]. Most studies that were performed on the DNDs involve the oxidative purification step that considerably changes their shape and properties [1].…”

Section: Introductionmentioning

confidence: 99%

On the relation between chemical composition and optical properties of detonation nanodiamonds

Kirmani

Peng

Mahfouz

et al. 2015

Carbon

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“…It is known for its superior hardness, high [17][18][19] . It has been studied for different applications as abrasive pastes 20 , wear-resistant coating 21 and UV protection flms 22 . Due to it biocompatibility, it has been also studied for drug-delivery 23 .…”

Section: Introductionmentioning

confidence: 99%

Influence of Encapsulated Nanodiamond Dispersion on P(3HB) Biocomposites Properties

et al. 2017

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Studies regarding biodegradable nanocomposites to be used as orthopedics devices have been intensified. This work aims to investigate the influence of ND dispersion on thermal and mechanical properties of a biocomposite of poly(3-hydroxybutyrate) (P(3HB)) reinforced with nanodiamonds (ND) intended to be used as orthopedics devices, with advantages as biodegradability. In order to improve its dispersion, P(3HB) has encapsulated ND in three different mass ratios: P(3HB):ND(16:1), (12:1) and (8:1). However, for all formulations, NDs are presented as agglomerates, in different intensities. In order to relate the distribution of ND within the polymer matrix and biocomposite properties, TGA, DSC, and DMA analysis were done. The formulation with higher content of ND, P(3HB):ND(8:1), presents larger aggregates; thus, decreasing its properties. With smaller and more distributed agglomerates, the 12:1 ratio composite displayed superior storage modulus and glass transition temperature, probably due to better polymer chain restriction.

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“…For this purpose, surface processing is applied, with the last stage being final polishing with the use of abrasive nanodispersed materials, such as natural and synthetic nanodiamond powders, boron or silicon carbides, cubic boron nitride and ultradispersed powders based on aluminum oxide (corundum) and silicon dioxide with a granularity ranging between 0.01 to 0.3 and 6 to10 µm [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Nanoparticulate Zirconia-Modified Solid Solutions of Aluminum-Iron Oxides for Polishing Titanium Metal

Koroleva¹

2015

DREAM

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A synthesis mechanism of nanoparticulate zirconia-modified Al 2-x Fe x O 3 solid solutions has been studied with the application of X-ray diffraction, IR spectroscopy, DTA, particle-size analysis and chemical analysis. The solid solutions have been prepared via heat treatment of ammonium hydroxycarbonate complexes. The nanoparticles are shown to consist of crystalline rhombohedral α-Al 2-x Fe x O 3 , monoclinic and tetragonal (M-ZrO 2 and T-ZrO 2 ). The synthesized mixed oxide offers a high polishing ability (3 to 4.5 times as high), as demonstrated in polishing of titanium, and ensures surface roughness values R a ranging between 0.019 and 0.009 μm.

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Polishing nanodiamonds

Cited by 30 publications

References 2 publications

On the relation between chemical composition and optical properties of detonation nanodiamonds

On the relation between chemical composition and optical properties of detonation nanodiamonds

Influence of Encapsulated Nanodiamond Dispersion on P(3HB) Biocomposites Properties

Nanoparticulate Zirconia-Modified Solid Solutions of Aluminum-Iron Oxides for Polishing Titanium Metal

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