Correlation between viscosity and absorption of electromagnetic waves in an aqueous UNCD suspension

Vul, A. Ya.; Eydelman, E.D.; Inakuma, M.; Ōsawa, Eiji

doi:10.1016/j.diamond.2007.08.003

Cited by 26 publications

(17 citation statements)

References 10 publications

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“…1 (left). Concentration dependences are different for the three systems studied, but, as for RUDDM and RDDM, they are similar to the corresponding results of Vul' and collaborators [4]. When the concentration exceeds 50 mg/ml for RUDDM and 90 mg/ml for RDDM, the viscosity vs. concentration dependence begins to deviate from linearity.…”

Section: Resultssupporting

confidence: 66%

Nanodiamond aqueous dispersions as potential nanofluids: the determination of properties by thermal lensing and other techniques

Usoltseva¹,

Volkov²,

Авраменко³

et al. 2018

Nanosystems: Phys. Chem. Math.

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Thermal-lens spectrometry was used to characterize thermal diffusivity and thermal conductivity of aqueous nanodiamond dispersions at the level of mg/mL, accompanied by heat capacity, density, and viscosity measurements and modelling. The data from thermal lensing corresponding to thermal equilibrium show 3 -7 % increase in thermal conductivity of the studied dispersions, show good precision and agree with the existing data.

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Section: Resultssupporting

confidence: 66%

Nanodiamond aqueous dispersions as potential nanofluids: the determination of properties by thermal lensing and other techniques

Usoltseva¹,

Volkov²,

Авраменко³

et al. 2018

Nanosystems: Phys. Chem. Math.

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“…It would be useful to mention that increasing the viscosity of hydrosol of the nanodiamond particles was already previously detected [4]. However that experiments used nanodiamond particles obtained by the milling method [6] having a sp 2 phase on the surface of the diamond particles.…”

Section: Discussionmentioning

confidence: 99%

“…The detonation synthesis of diamonds [1][2][3] is associated with a problem of their removal from aggregated carbon products, because milling yields the damaged diamonds with graphene-like coatings [4,5]. Recently the method of non-destructive separation of diamonds was developed to produce desirable crystals (polyhedrons, size of 4-5 nm) [3,6,7] for modern technologies, especially for medical and pharmaceutical applications (targeted delivery of preparations, luminescent markers, isotope carriers) [8][9][10], which need stable aqueous systems with diamonds.…”

Section: Introductionmentioning

confidence: 99%

Neutron Study of Multilevel Structures of Diamond Gels

2016

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Abstract:The structure of a hydrogel consisting of diamond nanoparticles formed by the explosion method has been studied. Small angle neutron scattering has been used as a method for characterization of the gel. Joint approaches for data analysis in reciprocal and direct space have been developed to restore a multilevel structure. The pristine hydrogel of positively charged diamond particles (~5 nm in size, concentration~5 wt %), even by four-fold dilution below its formation critical point, (C*~4 wt %) retains practically the original structure where single particles are joined into small groups integrated into chain fractal-type aggregates creating a network. This indicates a local stability of the gel and means a transformation of continuous gel into a system of micro-domains suspended in water. A perfection of the diamond crystals' facets was revealed that is of principal importance for the configuration of potentials, inducing the diamonds' electrostatic attraction due to different electric charges of facets. It is distinguished from the results for the suspensions of diamonds in graphene shells that showed a deviation of scattering from Porod's law.

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“…Of course, there may be limitations associated with the possible flow of heat in the gr areas. Let us further assume that the percolation threshold (see, eg, [16]) is reached [9], but the heat carried by electrons is small compared with the lattice vibrations heat transfer.…”

Section: Introductionmentioning

confidence: 99%

“…Such diamond nanoparticles were prepared by milling [7][8][9] and before long by purification techniques [10,11] from agglomerates about 100 nm in size. Then, solid composite was produced from 4 nm particles by sintering at high pressure and high temperature (HPHT).…”

Section: Introductionmentioning

confidence: 99%

Macroscopic thermoelectric efficiency of carbon nanocomposites

Eidelman¹,

Meilakhs²

2016

Nanosystems: Phys. Chem. Math.

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The subject of this study is the thermoelectric efficiency (Z) and the thermoelectric parameter (ZT ) of carbon nanocomposites, namely, the structures consisting of graphite-like (gr) and diamond-like (d) regions made of sp 2 and sp 3 hybridized carbon atoms, respectively. The impact of heat transfer across the boundary between sp 2 and sp 3 areas is analyzed for the first time. It is shown that the interfacial thermal resistance (Kapitza resistance) is not lower than the thermal resistance in the macroscopic gr region. The influence of various factors on the Kapitza resistance is analyzed. The value of ZT ≈ 3.5 at room temperature, taking into account the interfacial thermal resistance, is significantly higher than it would be in gr films (ZT ≈ 0.75).

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Correlation between viscosity and absorption of electromagnetic waves in an aqueous UNCD suspension

Cited by 26 publications

References 10 publications

Nanodiamond aqueous dispersions as potential nanofluids: the determination of properties by thermal lensing and other techniques

Nanodiamond aqueous dispersions as potential nanofluids: the determination of properties by thermal lensing and other techniques

Neutron Study of Multilevel Structures of Diamond Gels

Macroscopic thermoelectric efficiency of carbon nanocomposites

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