Clean separation and purification for strategic metals …
Molybdenum (Mo) and rhenium (Re) are strategic key metals for the development of modernization. In nature, 99 wt.% of Re is associated with molybdenite …
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Molybdenum-rhenium alloy based high-
Molybdenum-Rhenium (MoRe) is a disordered superconducting alloy with a noble surface chemistry and a relatively high transition temperature. These properties …
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Molybdenum | SpringerLink
Molybdenum is a refractory metal; of the naturally occurring elements, only carbon, tungsten, rhenium, osmium and tantalum have higher melting points. ... Un nouveau sulfure de molybdene: Mo 3 S 4 preparation, proprietes et structure cristalline (A new molybdenum sulfide: Mo 3 S 4 preparation, properties and crystal structure). Mater …
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Mo-25 Re Alloy | Density, Strength, Hardness, …
The molybdenum-rhenium alloys exhibiting good low-temperature ductility. The Mo-35Re alloy also has a low ductile-to-brittle transition temperature in the as-cast condition. The alloy is extremely difficult to fracture by …
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Search for Environmentally Friendly Technology for …
A principally new direction in the development of environmentally friendly technology of production of molybdenum and rhenium from molybdenum-containing concentrates and industrial products was found. The results of the studies are considered for use at the new Yuzhno-Shameiskii deposit and modernization of existing productions. …
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Evaluating Molybdenum-Rhenium Alloys Through …
Manufacturing under argon-3% hydrogen shielding gas led to a significant refinement of the grain structure of pure molybdenum and molybdenum rhenium alloys. The proposed mechanism is that the increased oxygen content in the bulk material beneficially inhibits grain growth. See more
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About Rhenium Alloys
History of Rhenium Alloys. Founded in 1966 in Elyria, Ohio (near Cleveland), Rhenium Alloys, Inc. began business with a single product line: the highest quality fine gage rhenium wire available in the marketplace. Since then, Rhenium Alloys, Inc. has added related refractory metal product lines and created several new materials and tools, while ...
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A perspective on molybdenum biocompatibility and
Abstract The use of biomaterials has become routine in dentistry, reconstructive surgery of the locomotor system, treatment of congenital, traumatic and tumor situations, and knee or hip arthroplasty. The main issue related to metal biomaterials is the systemic release of metal ions and the related biological risks. When placed in contact …
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Characterization of ion release from a novel …
A novel metal alloy, Molybdenum-47.5Rhenium alloy (MoRe®), was approved for use in medical implants in 2019 by the FDA. Purpose: To evaluate the metal ion release profile …
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Rhenium recovery from roasting leachate of …
Introduction. The leaching solution of molybdenum concentrate roasting is the most important raw material for rare metal rhenium recovery [ 1 ]. Rhenium plays a …
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Abstracts
A 4.5mm molybdenum-rhenium(MoRe) rod will have adequate performance and durability in complex spine surgeries. ... A new technique of MIS single position prone lateral surgery using a low profile system composed of smaller pedicle screws, 4.5mm molybdenum-rhenium rods and specialized lateral retractor can reduce the frequency of …
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(PDF) Investigation of mechanical properties and …
The effect of the rhenium addition to molybdenum in powder metallurgy sheet product near and exceeding the saturation point of rhenium in molybdenum was investigated. Alloys of 41,44.5, 47.5 and ...
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Evaluation of oxide dispersion strengthened (ODS) molybdenum …
Section snippets Material processing. Batches of molybdenum – 14 wt% rhenium – 1 wt% La 2 O 3 (ODS Mo–14Re) and a molybdenum – 7 wt% rhenium – 1 wt% La 2 O 3 (ODS Mo–7Re) composition were prepared using a proprietary powder metallurgy procedure. Each new composition was prepared by adding the desired amount of …
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Molybdenum Rhenium Alloy | AMERICAN …
Molybdenum Rhenium is one of numerous metal alloys sold by American Elements under the trade name AE Alloys™. Generally immediately available in most volumes, AE Alloys™ are available as bar, ingot, …
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Selectivity recovery of molybdenum(VI) from rhenium(VII) …
Amine functional group was grafted to obtain modified persimmon waste gel (NH 2 –CPT) with the focus of development of selective recovery of molybdenum from rhenium. The adsorption behavior of the NH 2 –CPT gel for various metal ions at varying hydrochloric acid concentrations was studied. It is found that the NH 2 –CPT exhibits high …
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(PDF) Pressure Oxidation of Molybdenum Concentrates
The significant presence (0.159%) of rhenium, a high-priced metal used in nickel-superalloys, serves as major motivation for processing of this concentrate. Pressure oxidation offers an ...
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Review of Methods for Obtaining Rhenium from Man-Made …
In the patent, rhenium was recovered from a solution of a spent catalyst containing rhenium and other platinum group metals, iron, and molybdenum in hydrochloric acid using a new method. In accordance with this invention, a sufficient amount of sulfuric acid is added to a solution of rhenium-containing hydrochloric acid to reach a …
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^LA-8685-MS * ''* A Critical Evaluation of Molybdenum …
5. Molybdenum-rhenium equilibrium phase diagram li 6. Thermal conductivity of molybdenum, TZM and ;-io-Ke alloys ... 12 7. Thermal expansion of molybdenum and selected molybdenum allovs 13 8. Ductile-brittle transition for recrystall.u-ed Mo-Re alloys . . 14 9. Room temnerature mechanical properties of melted Mo-Re alloys 16 10.
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Minerals | Free Full-Text | Substantiation of New Reagent …
The sample of the copper–molybdenum rhenium-containing porphyry ore from one of the Russian deposits was selected for ore flotation tests. The initial content of copper, molybdenum and rhenium in the sample according to the chemical analysis was 0.54% Cu, 0.0055% Mo and 0.13 ppm Re, respectively.
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Hydrometallurgical Extraction of Molybdenum and Rhenium …
Herein, the leaching of molybdenum and rhenium from the molybdenite roasting flue dust in H 2 SO 4 was studied. The parametric studies showed that leaching performed at a pulp density, 10 wt./vol.%; H 2 SO 4 concentration, 1.0 M; temperature, 90 °C; and time, 90 min was sufficient to yield 96% molybdenum and 93% rhenium. The …
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MiRus® Announces Launch of Molybdenum …
MoRe ®, a proprietary molybdenum rhenium superalloy for medical implants, provides an unprecedented combination of strength, ductility, durability, and …
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It's Elemental
Today, rhenium is obtained as a byproduct of refining molybdenum and copper. Rhenium is used in flash lamps for photography and for filaments in mass spectrographs and ion gages, but is most frequently used as an alloying agent in tungsten and molybdenum and as a catalyst for performing certain reactions to a type of hydrocarbon known as an olefin.
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Development of a molybdenum-rhenium alloy for space …
Molybdenum alloys with rhenium contents of 41% to 47.5% (wt%), in particular, have good creep resistance and ductility in both base metal and weldments. However, irradiation-induced changes such as transmutation and radiation-induced segregation could lead to precipitation and, ultimately, radiation-induced embrittlement.
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Evaluating Molybdenum-Rhenium Alloys Through Additive …
Molybdenum (b), rhenium (c), Mo-5wt.%Re (d), Mo-10wt.%Re (e), and Mo-25wt.%Re (f) powders. Note the difference in scale between (c) and the other powder images. Full size image. All specimens were manufactured with a Concept Laser (Germany) Mlab Cusing 200R 3D metal printer equipped with a 50 µm diameter, 200 W continuous …
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Characterization of ion release from a novel biomaterial, Molybdenum …
RESULTS. Under baseline physiologic conditions, the MoRe alloy demonstrates very low molybdenum and rhenium ion release rates throughout the 30-day test period. During the first time interval (day 0–1), low levels of molybdenum and rhenium ions are detected (<0.3 μg/cm 2 day) followed by a rapid reduction in the ion release …
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Molybdenum rhenium alloy-a new generation of advanced …
From the theoretical analysis of material properties, the reason why molybdenum-rhenium alloy surgical implants is worth looking forward to become a new generation of more …
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Full article: Ductilizing Mo alloys via nanoparticle-stabilized
1. Introduction. Molybdenum (Mo) and Mo-based alloys are very attractive for many critical high-temperature applications such as in turbine, missile, and fusion reactor components, due to their advantages of high strength, excellent creep-resistance, high thermal conductivity, etc [Citation 1–3].However, the Mo alloys basically suffer from a …
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Molybdenum as a Potential Biocompatible and Resorbable …
To characterize molybdenum as a biocompatible material, we performed in vitro assays in accordance with ISO Norm 10993-5. In four different experimental setups, we showed that pure molybdenum and molybdenum rhenium alloys do not lead to cytotoxicity in human and mouse fibroblasts.
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Rhenium | SpringerLink
Rhenium is a metal with one of the highest melting points of all the elements, exceeded by only tungsten and carbon. The general thermodynamic properties of rhenium are summarized in Table 4.1.For the molar heat capacity c p = f(T, K), J mol −1 K −1, the following relationship is recommended for the range of temperatures from 298 to 2500 K []
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A novel method for preparing ultrafine molybdenum‑rhenium …
Ultrafine Mo Re alloy powders were successfully prepared by carbon‑hydrogen synergistic reduction.. The resulting powders exhibit a spherical shape, with an average particle size of 173 nm. • The phase compositions of the Mo Re alloy powder are molybdenum, rhenium, and χ phase.. The molybdenum, rhenium …
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