Effect of current density and cobalt concentration on the

The (220) peak appeared only at a current density of 1 A/dm 2 using a cobalt sulfamate concentration of 40 g/L. TEM showed that refined and well-distributed crystals …

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Enhanced stability of hexacyanoferrate-based modified …

Aluminium as an excellent substrate electrode for the deposition of highly stable electroactive films has been previously introduced for various modifier materials including hexacyanoferrates. 9–12 Here, the deposition of a thin film of cobalt hexacyanoferrate onto an Al substrate electrode under centrifugal fields is considered.

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Relative Centrifugal Field (RCF)

Relative centrifugal field (RCF) describes and compares the strength of the fields generated by different size rotors and different operating speeds. Just as length is measured in units of inches or millimeters, time in units of hours or minutes, the relative centrifugal field is measured in units also.

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Fabrication of platinum-cobalt nanowires by centrifugal …

In this study, platinum-cobalt (PtCo) bimetallic nanowires are prepared successfully by the centrifugal electrospinning technique and their potential as …

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Sinotech Custom Motor Laminations

Cobalt Alloys for Motor Laminations. Cobalt alloy is an appropriate choice when other materials do not meet quality and performance requirements or when applications require high flux densities without saturation. As a result, the alloy is good for weight-sensitive applications that require less metal to carry the flux.

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Applications of Cobalt Alloys

Cobalt is likewise used in machine gun barrels, M2HB machine guns, poppet valves, valve seats, and the exhaust valves of an internal combustion engine.Finally, to add to its numerous uses, there are also manufacturers that use this metal alloy in saw teeth, hard facing, and acid-resistant machine parts.In the medical field, cobalt is …

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Centrifugal Field | Card Details | Yu-Gi-Oh! TRADING CARD …

These are the card details for the Yu-Gi-Oh! TCG card "Centrifugal Field." Please refer to this page for the Yu-Gi-Oh! TCG official rules for "Centrifugal Field." Please go to "Search For Decks Containing This Card," if you would like to search for Decks that contain "Centrifugal Field."

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Centrifugal field Definition & Meaning

The meaning of CENTRIFUGAL FIELD is a space in which centrifugal forces may be detected (as in a rotating centrifuge or in a vehicle rounding a curve).

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Cobalt Colloid-derived Efficient and Durable Nanoscale Electrocatalytic

Oxygen evolution reaction is of immense importance and is vitally necessary for devices such as electrolyzers, fuel cells, and other solar and chemical energy conversion devices. The major challenges that remain in this quest are due to the lack of effective catalytic assemblages operating with optimum efficiency and obtainable following much …

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(PDF) MC12-206.PDF | Ali Eftekhari

Highly stable modified electrodes were fabricated by the deposition of electroactive films onto substrate electrode surfaces under centrifugal fields. See Full PDF Download PDF See Full PDF Download PDF

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Comparing Castability of Nickel-Chromium, Cobalt …

Group 2: nickel-chromium alloy was casted with centrifugal technique. Group 3: cobalt-chromium alloy was casted with induction technique. Group 4: cobalt-chromium alloy was casted with centrifugal technique. ... (Ni-Cr) alloy is used widely in prosthodontic field for crowns and bridges as well as post-core constructions [ 2]. Despite its ...

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Intensification of Water Electrolysis in a Centrifugal Field

For cells operating in centrifugal fields, as with ordinary water electrolysis cells, activity of the catalyst for the hydrogen and oxygen evolution reactions is an important factor in determining the water electrolysis cell performance. Nickel showed the best performance, in alkaline media, among the tested materials due to its high ...

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Effect of current density and cobalt concentration on the

A supergravity field offers several advantages during electrodeposition. Electrodeposition assisted by a supergravity field was employed to produce …

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Centrifugal Force

Centrifugal force is the apparent force that acts away from the center of a circular path. The force is always perpendicular to the direction of movement. The formula for centrifugal force is the same as for centripetal force: F c = mv 2 /r. However, centrifugal force acts in an equal and opposite direction.

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Effect of centrifugal casting process on mold filling and …

A centrifugal vacuum furnace was used to fabricate the K418B nickel-based superalloy turbine guide. Firstly, after pre-heating the mold on the centrifugal iron disk at 980 °C for 2 h, the mold was transferred into the centrifugal vacuum furnace, which was evacuated to 0.1 Pa subsequently. Table 1 Nominal composition of K418B nickel-based ...

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Enhanced corrosion resistance of nickel–cobalt…

Compared to under a normal gravity field, the SiC concentration in the diffusion layer around the cathode layer was much higher under the supergravity field because of the centrifugal force. A larger SiC concentration in solution contributes to a higher SiC content in the as-deposited coating [36]. Consequently, the increase in SiC ...

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Centrifugal Field

Centrifugal Field + French database ID. 6,271 + French lore. Lorsqu'un Monstre de Fusion est détruit par l'effet d'une carte et envoyé dans le Cimetière, sélectionnez 1 des Monstres-Matériel de Fusion inscrits sur la carte du Monstre de Fusion de votre Cimetière et faites-en l'invocation Spéciale sur votre Terrain. +

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stainless steel pipe, titanium and titanium alloy, centrifugal …

Shaanxi RuiYang Import&Export Co.,Ltd is an audited supplier by SGS &BV professional supplying top grade alloy products.Our products Include Stainless steel, Titanium and Titanium alloy, Cobalt alloy, Heat-resistant steel centrifugal casting( pipe and accessories) and Aluminium and aluminium alloy mainly 5 series.

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Iridium single atoms incorporated in Co3O4 efficiently …

Herein, we report on a cobalt oxide incorporated with iridium single atoms (Ir-Co 3 O 4), prepared by a mechanochemical approach.

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Dispersing carbon nanotubes using surfactants

Assessment of (n,m) selectively enriched small diameter single-walled carbon nanotubes by density differentiation from cobalt-incorporated MCM-41 for macroelectronics. Chem Mater, 20 (2008), pp ... Dynamics of surfactant-suspended single-walled carbon nanotubes in a centrifugal field. Langmuir, 24 (2008), pp. 1790-1795. …

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Fabrication of platinum nanowires by centrifugal …

In this study, platinum-cobalt (PtCo) bimetallic nanowires are prepared successfully by the centrifugal electrospinning technique and their potential as electrocatalyst is evaluated for proton ...

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Effect of current density and cobalt concentration on the

A supergravity field offers several advantages during electrodeposition. Electrodeposition assisted by a supergravity field was employed to produce nickel–cobalt (Ni Co) alloy coatings. The grain size, surface morphology, preferred crystal orientation, microhardness and wear resistance of the deposited Ni Co coatings were studied …

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Iridium boosts the selectivity and stability of cobalt catalysts …

DOI: 10.1016/j.chempr.2021.12.016 Corpus ID: 246358523; Iridium boosts the selectivity and stability of cobalt catalysts for syngas to liquid fuels @article{Kang2022IridiumBT, title={Iridium boosts the selectivity and stability of cobalt catalysts for syngas to liquid fuels}, author={Jincan Kang and Qiyuan Fan and Wei Zhou …

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Electrochemical Deposition of Ni/SiC under Centrifugal Fields

Electrochemical deposition of Ni/SiC was carried out under centrifugal fields (69 and 113 G) and Earth's gravity (1 G). The volume fraction of SiC in a nickel matrix was found to be increased by the applied gravitational force. In addition, morphological structure of the film was also affected by the centrifugal field. A plausible mechanism for the …

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Iridium boosts the selectivity and stability of …

The fabrication of iridium-cobalt single-atom alloy nanoparticles offers high CO conversion activity and about 95% selectivity of long-chain hydrocarbons with methane selectivity suppressed to …

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TRANSIENT HEAT TRANSFER OF SUPERCRITICAL …

A temperature resistive platinum-0.5% cobalt (Pt-Co) thin wire, having small heat mass, was used as a temperature sensor and heater to measure the heat transfer ... Steady state film boiling was established in the high centrifugal field much faster than in the case oflG. 3. In the steady state film boiling region, the Pt-Co wire detected cyclic ...

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Effect of current density and cobalt concentration on the

A supergravity field offers several advantages during electrodeposition.Electrodeposition assisted by a supergravity field was employed to produce nickel–cobalt (Ni Co) alloy coatings. The grain size, surface morphology, preferred crystal orientation, microhardness and wear resistance of the deposited Ni Co coatings …

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Transient heat transfer of supercritical helium in high centrifugal …

Transient heat transfer of supercritical helium in centrifugal acceleration field has been measured for studying the stability characteristics of superconducting rotor windings of a superconducting generator. A temperature resistive platinum-0.5% cobalt (Pt-Co) thin wire, having small heat mass, was used as a temperature sensor and heater to measure the …

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Ultracentrifugation Techniques for the Ordering of …

A centrifugal field can provide an external force for the ordering of nanoparticles. Especially with the knowledge from in-situ characterization by analytical …

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A CENTRIFUGE PRIMER

How can we describe and compare the strength of the fields generated by different size rotors and different operating speeds? The expression relative centrifugal field (RCF) serves this purpose. Just as length is measured in units of inches or millimeters, time in units of hours or minutes, the relative centrifugal field is measured in units also.

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Cobalt Colloid-derived Efficient and Durable Nanoscale …

Here, we demonstrate that the robust electrocatalytic activity toward water oxidation can be achieved employing straightforwardly obtainable nanoscale electrocatalysts derived from easily made colloidal-cobalt nanoparticles (Co-CNPs) …

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Effect of centrifugal casting process on mold filling and …

The cobalt aluminate was applied by the National drug group chemical reagent Beijing Co., Ltd., China. The silica sol used as the mold binder was applied by Nalco Company, USA. ... However, due to the effect of the centrifugal force field, the dendrites precipitated from the liquid phase of the alloy are constantly broken. Although …

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Fabrication of platinum-cobalt nanowires by centrifugal …

Investigation for novel catalytic materials is quite important for the development of fuel cell as well as hydrogen economy. In this study, platinum-cobalt (PtCo) bimetallic nanowires are prepared successfully by the centrifugal electrospinning technique and their potential as electrocatalyst is evaluated for proton exchange membrane fuel …

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