Obtained results are commented, ruling out a possible Re-S binding and rather conforming The possibility to form high-quality Re-Ni films by this process has been demonstrated recently. Stannous chloride with ascorbic acid (as antioxidant) was used for reduction of perrhenate.

What is Rhenium - Properties of Rhenium Element - Symbol Re . Rhenium Sheet Re bulk & research qty manufacturer. The morphologies and bond strengths of the coatings on the C/C substrate were examined. The thickness of the coating was measured on metallographic cross-sections. In comparison, not any silicide formation was observed in the electroless- and electroplated copper(rhenium) alloy films with minor incorporations of rhenium for 0.10 and 0.39 at% until 600 and 500°C, respectively, attributed to the prior segregation of rhenium and the self-formation of rhenium barrier layer at the copper/silicon interface at 400°C.

Physical Properties Mechanical Properties Thermal Properties Fabrication and Heat Treatment Machinability Forming Welding Applications Introduction. To inhibit the detrimental diffusion of copper into silicon devices, an effective barrier is strongly demanded. However, an increased deformation of the perrhenate ions with increasing molar ratio of [NiCit](-)/ReO4- was clearly shown by Raman spectroscopy.

The problems in the use of rhenium compounds and supported mono-, bi-, and poly-metallic rhenium-containing catalysts for carrying out reactions involving the metathesis of alkenes and unsaturated functional compounds, the hydrogenation and dehydrogenation of hydrocarbons, the conversion of hydrocarbons and their industrial mixtures, and the hydrogenation of fractions comprising carboxylic acids and the products of the hydroformylation of synthetic aliphatic acid esters are examined.
Because of the favorable physical properties of (188)Re, several (188)Re-labeled agents are being developed and evaluated for the treatment of nonresectable/refractory liver cancer. Here, part of the Co has been formally replaced by Re which has much larger hardness than that of Co (hardness for bulk Re is 2.6–7.5 GPa, ... Rhenium (Re) is a refractory metal with a unique combination of properties that makes Re and its alloys attractive for a variety of hightemperature, catalytic, energy, electrical and biomedical applications, in spite of its high cost [1]. The induced co-deposition is believed to be a catalytic process, including the stage of simultaneous reduction of ReO4- and [NiCit]- or [NiHCit] species, which influences each other by weak interaction.

Specimens with two different nickel compositions were characterized - 1.3 and 20.6 atomic %. UV-spectrum view of red chemical form are identical to those that are formed by reaction TcO4 - with HNO3 and H2O2 in education correspond tCO (O2) 2 (H2O) (OH). Rhenium was discovered by the German chemists Ida Tacke-Noddack, Walter Noddack and Otto Carl Berg in 1925. Ammonium perrhenate solution was crystallized to obtain ammonium perrhenate crystals which were free of tungsten and other metal impurities.

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therefore noteworthy to assign the presence of rhenium (in a concentration up to 3 ppm) in the A gradual turn-on cycle lasting several minutes results in substantially extended lifetimes, ostensibly by reducing the thermal shock associated with more abrupt power cycling.
Despite being a very scarce element, the remarkable physical and chemical properties of rhenium render it a highly demanded commodity for advanced applications in important industrial fields, therefore increasing its economic value. It was found that carbon (0.0140 wt%) and oxygen (0.0067 wt%) were the primary impurities for CVD and ED Re coatings, respectively. Rhenium (Re) has been selected as the interlayer material between the Ir coating and C/C substrate which can improve the adhesion of Ir coating and relieve the thermal stress. S19-S29. So, now the active interest shown by researchers studying the compounds, called inorganic fullerenes and inorganic nanotubes - nanoclusters metal compounds of lower oxidation states, as well as organic-inorganic composites, in which the polymer matrix comprises such clusters.

They detected rhenium spectroscopically in platinum ores and in the minerals columbite ((Fe, Mn, Mg)(Nb, Ta) 2 O 6), gadolinite ((Ce, La, Nd, Y) 2 FeBe 2 Si 2 O 10) and molybdenite (MoS 2).Rhenium is present in these materials only in trace amounts. The paper presents results of processing Ti–Re alloys by consolidating mixtures of powders of both metals with the use of selective laser melting (SLM).

In the potential region where the her is occurring, either on gold or n-Si(100) the electrodeposition of metallic rhenium takes place.

The characteristic features of the behaviour of platinum–rhenium/alumina catalysts under reforming conditions are described. Rhenium-188 | Re | CID 167082 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

Discusses various properties of the metal rhenium. Tensile specimens of Mo 41Re and Mo 47.5Re alloys were irradiated to ˜0.7 displacements per atom (dpa) at 1073, 1223, and 1373 K and ˜1.4 dpa at 1073 K in the High Flux Isotope Reactor at Oak Ridge National Laboratory. Because of the potentially toxic effect of SnCl2 the reduction of perrhenate by stannous chloride was studied in detail to find the way for decreasing the concentration of reducing agent in the reaction mixture without significant lowering of the yield of perrhenate reduction.

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