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Enhancement of heat transfer of microcapsulated particles using copper particles and copper foam
Particuology, 2018Abstract The application of phase-change materials (PCM) for thermal-energy storage is hampered by their low thermal conductivity. Copper particles (CP) and copper foam (CF) were used to enhance the thermal conductivity of a microencapsulated phase-change material (MicroPCM).
Zhonghao Rao, Yiping Wen, Chenzhen Liu
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Copper coating on graphite particles
Materials Science and Engineering, 1975Abstract Conditions for obtaining 2 – 5 μm thick continuous coatings of copper on 2 – 200 μm diameter graphite particles using aqueous and supersaturated copper sulphate solution by cementation processes have been optimised. For both the aqueous solution and the supersaturated solution methods it was found necessary to activate the graphite particles
B.C Pai, P.K Rohatgi
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Target-Specific Copper Hybrid T7 Phage Particles
Langmuir, 2012Target-specific nanoparticles have attracted significant attention recently, and have greatly impacted life and physical sciences as new agents for imaging, diagnosis, and therapy, as well as building blocks for the assembly of novel complex materials.
Siva Sai Krishna, Dasa +3 more
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Oxidized copper wire particles for copper therapy in sheep
Australian Journal of Agricultural Research, 1982Ninety Merino weaner sheep were assigned to one of six groups on the basis of liveweight and liver copper concentrations. Sheep in four groups each received one oral dose of oxidized copper wire particles, viz. 2.5, 5, 10 or 20 g per animal. Sheep in another group each received a subcutaneous injection of 12 mg copper as diethylamino cupro-oxyquinoline
GJ Judson +5 more
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Copper-Binding Properties of Polyethylenimine–Silica Nanocomposite Particles
Langmuir, 2022Increasing demand for copper resources, accompanied by increasing pollution, has resulted in an urgent need for effective materials for copper binding and extraction. Polyethylenimine (PEI) is one of the strongest copper-chelating agents but is not suitable directly (as is) for most applications due to its high solubility in water.
Alexandra Semenova +5 more
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Solid particle erosion mechanisms in copper and two copper alloys
Metallurgical Transactions A, 1981The amount and mechanisms of metal loss has been studied for oblique and normal impact on copper, 70/30 brass, and precipitation hardened Cu-2 pct Be, using steel ball bearings and velocities from 138 to 300 m/s. The weight losses are roughly the same for the three alloys though the mecahnisms of flow and fracture change from highly plastic for copper ...
Tariq Quadir, Paul Shewmon
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Creep in copper dispersion strengthened with alumina particles (ODS copper)
Materials Science and Engineering: A, 2003Abstract The creep behaviour of ODS copper is investigated in two distinctly different temperature intervals. In both intervals creep exhibits threshold behaviour; the true threshold stress decreases with increasing temperature. In the lower temperature interval (673–773 K) the creep strain rate is dislocation core diffusion controlled and the true ...
K Kuchařová, S.J Zhu, J Čadek
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Annals of Work Exposures and Health, 2023
Abstract Inhalation exposure to copper and its inorganic compounds can occur in various industrial sectors such as ore mining, production of electrical equipment etc. Toxic effects of copper and its oxides have been shown to be attributed to i. particle size and ii. dissolution/release of copper ions.
Katharina Bluemlein +3 more
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Abstract Inhalation exposure to copper and its inorganic compounds can occur in various industrial sectors such as ore mining, production of electrical equipment etc. Toxic effects of copper and its oxides have been shown to be attributed to i. particle size and ii. dissolution/release of copper ions.
Katharina Bluemlein +3 more
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Interaction of a copper oxide particle with copper in drawing
Russian Metallurgy (Metally), 2012The forming of copper near a copper oxide particle is determined during multiple-pass drawing. The interaction of the copper oxide particle with copper is studied by the calculation of the state of stress in a finite element formulation and using scanning electron microscopy data.
Loginov, Yu. N. +3 more
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Copper oxide particles for grazing sheep
Australian Journal of Agricultural Research, 1983In a series of experiments aimed at evaluating copper oxide as a supplement, grazing sheep were dosed with varying quantities of copper oxide particles up to 64 g, and the toxicity, the rate of particle excretion, and copper storage in the liver and other tissues were recorded.
JP Langlands +5 more
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