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Showing 1 to 18 of 18 for “"Cobalt Iron"”.
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Wire Direct Energy Deposition of Cobalt Iron Alloy
The presented research explores the Wire-Laser Direct Energy Deposition of Fe17Co alloy for soft magnetic applications. Process parameters starting from power, feed speed, and feed/scan ratios were optimized where a high confidence multi-factor regression model was developed correlating the …
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Electrodeposition of High Magnetostrictive Cobalt Iron Alloy Films for Smart Tags and Sensor Applications
… the kinetic rate for the reduction of the cobalt iron alloy as a function of additive concentrations. The oxygen scavenger additives were found to increase the kinetics while anodically shifting the reduction peak for the alloy. The leveling and brightening agents shifted the reduction peak …
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Influences on the oceanic biogeochemical cycling of the hybrid-type metals : cobalt, iron, and manganese
… that influence ocean ecosystem dynamics. Cobalt, iron, and manganese are redox active trace metal micronutrients with oceanic distributions that are influenced by both biological and abiotic sources and sinks. Their open ocean concentrations range from picomolar to nanomolar, and their …
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Influences on the oceanic biogeochemical cycling of the hybrid-type metals, cobalt, iron, and manganese
… that influence ocean ecosystem dynamics. Cobalt, iron, and manganese are redox active trace metal micro-nutrients with oceanic distributions that are influenced by both biological and abiotic sources and sinks. Their open ocean concentrations range from picomolar to nanomolar, and their …
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Trace Element Nutriture of the Chick as Affected by Eimeria Acervulina Infection
… to excess. The trace elements investigated were cobalt, iron, manganese, zinc and copper. Experimental coccidiosis was induced by inoculation with 2 x 10('5), 4 x 10('5) or 8 x 10('5) sporulated Eimeria acervulina oocysts on days 0, 3, 6, 9 and 12 of the 13- or 14-day assay periods.
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Selective growth of magnetic nanoparticles in domains of block copolymer films, and in polyelectrolyte multilayers
Nonagglomerated cobalt, iron, iron-cobalt, and cobalt-nickel alloy nanoparticles, some of which exhibit significant room-temperature magnetic coercivity, have been produced by thermal decomposition of organometallic complexes in a bulk film of P(S-b-2VP). The particles are patterned on the …
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Critical Current Enhancement In Magnetic Spin-Transfer Nano-Devices Through Doping With The Rare Earth Terbium
… the application of established theory from the iron garnets. We also show that terbium doping can address technological problems with hard drive read heads. In particular, by inhibiting the microwave noise until a higher turn-on current is reached, without compromising the ability of the device …
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A Reluctance Actuator Gap Disturbance Testbed
… The cores of these actuators are made of Cobalt Iron, the soft magnetic material with the highest flux density saturation. Both a single actuator and a double actuator were fabricated. The double actuator can impart a roll torque as well as a normal force. Finite Element Method was …
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Nonaqueous Synthesis of Metal Oxide Nanoparticles and Their Surface Coating
… results of successful synthesis of crystalline iron oxide (Fe3O4) and indium oxide (In2O3) nanoparticles are reported. Those nanoparticles exhibit monodispersed particle size, high crystallinity and high dispersibility in non-polar solvents. The particle size can be tuned by the seed mediated …
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Superconducting Proximity Effects and Josephson Coupling in CoFeB Structures
… that assess the suitability of a ferromagnetic cobalt-iron-boron alloy (CoFeB) for further research and application in ‘superconducting spintronics’ - the field that aims to utilise the distinct physics arising at interfaces between superconducting and magnetic thin films for the development of …
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Coordination Chemistry in Biology and Medicine
… <p>Syntheses of new barium, cadmium, calcium, cobalt, iron, lead, magnesium, manganese, nickel, and strontium citrate complexes have been attempted using different methods such as room temperature slow evaporation and hydrothermal reactions to create new metal-citrate complexes. …
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Polymer Stabilized Magnetite Nanoparticles and Poly(propylene oxide) Modified Styrene-Dimethacrylate Networks
… than magnetic transition metals such as cobalt, iron, and nickel. Magnetite nanoparticles can be prepared by co-precipitating iron (II) and iron (III) chloride salts in the presence of ammonium hydroxide at pH 9-10. One goal of this work has been to develop a generalized methodology for …
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The chemical limnology of Lake Bonney, Antarctica, with emphasis on trace metals and nutrients
… were analyzed for the presence of copper, cobalt, iron, manganese, molybdenum, and nickel using flameless atomic absorption. More than 90 percent of the mass of each trace metal was found to be in the monimolimnion. Manganese was by far the most abundant trace metal in the lake, and some …
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ELECTROCHEMICAL SYNTHESIS OF MAGNETIC MATERIALS FOR MAGNETIC RECORDING AND MEMS APPLICATIONS
… to switch the high coercivity medium bits. Hence Cobalt Iron (Co37Fe63) alloys having the highest magnetic flux density of 2.4 T are used for this purpose. Sulfur containing additives like saccharin are incorporated in the CoFe electrodeposition bath to provide desirable properties like low …
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Biomethane production from grass silage: laboratory assessment to maximise yields
… trace element profiles indicated that cobalt, iron and nickel are deficient in mono-digestion of grass silage at a high organic loading rate (OLR) of 4.0 kg VS m-3 d-1. The addition of a slurry co-substrate was beneficial due to its wealth of essential trace elements. To stimulate …
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An Investigation of the Structures, Properties and Possible Applications of Complexes of Metals with Organotellurium Compounds
… as ligand was investigated.Some complexes of cobalt, iron, nickel and copper with di-2-pyridylketone were synthesised and characterised by various techniques. An explanation for the anomolous magnetic behaviourof cobalt complex reported by a previous worker is given. Tris complexes of …
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ΚΑΤΑΛΥΤΙΚΕΣ ΙΔΙΟΤΗΤΕΣ ΧΗΜΙΚΩΝ ΟΞΕΙΔΙΩΝ ΤΟΥ ΣΙΔΗΡΟΥ ΚΑΘΑΡΩΝ ΚΑΙ ΜΙΚΤΩΝ ΣΤΗ ΜΕΤΑΤΡΟΠΗ ΤΟΥ ΜΟΝΟΞΕΙΔΙΟΥ ΤΟΥ ΑΝΘΡΑΚΑ ΤΟΥ ΥΔΡΑΕΡΙΟΥ
PURE MAGNETIDE AND MIXED SPINEL FERRITES CONTAINING IN VARIOUS CONCENTRATIONS CR, CO OR NI AS A PROMOTER WERE PREPARED BY COPRECIPITATION, CALCINATION AND, WHEN NEEDED, REDUCTION X-RAY DIFFRACTION AND MOSSBAUER SPECTROSCOPY CONFIRMED THEFORMATION OF SPINEL FERRITES. THE ACTIVITIES OF THE PREPARED …
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Synthesis of redox-active ligands and their use in hydrogenase modeling
… models. Chapter 5 describes work with cobalt systems with respect to hydrogen generation. Implementation of redox active ferrocenyl ligands into cyclopentadienylcobalt complexes was investigated, attempting to utilize CoI platforms for hydride formation and subsequent H2 generation. …