Suspended superconducting nanostructures of MoRe 50%/50% by weight are fabricated employing commonly used fabrication steps in micro- and nano-meter scale devices followed by wet-etching with Hydro-fluoric acid of a SiO 2 sacial layer. Suspended superconducting channels as narrow as 50 nm and length 3 μ m have a …

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, …

Abstract. X-ray, metallographic, and melting-point studies were made of the molybdenum-rhenium system. Rhenium dissolves extensively in molybdenum, the maximum solubility of 43 at. % at 2440 C fulling to 26 at.% at 900 C. The solid solubility of molybdenum in rhenium is 15 at.% at 2500 C and 8 at.% ant 900 C.

Abstract. Provided is a method of making an ODS molybdenum-rhenium alloy which includes the steps of: (1) forming a slurry containing molybdenum oxide and a metal salt dispersed in an aqueous medium, the metal salt being selected from nitrates or acetates of lanthanum, cerium or thorium; (2) heating the slurry in the presence of …

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.

Characteristics. Like other refractory metals, molybdenum has a high density and melting point and is resistant to heat and wear. At 2,623 °C (4,753 °F), molybdenum has one of the highest melting points of all metal elements, while its coefficient of thermal expansion is one of the lowest of all engineering materials. Moly also has a low ...

You must enter a search term. Advanced search Issue 30, 2019. Previous Article; Next Article; From the journal: CrystEngComm. Molybdenum and rhenium disulfide synthesis via high-pressure carbonate melt† Michael Anenburg * a ... Molybdenum and rhenium disulfide synthesis via high-pressure carbonate melt ...

Molybdenum-47.5%-Rhenium Wire is used in welding, electronics and wire mesh grids for the aerospace industries. Alloying Rhenium with Molybdenum adds both ductility and strength to wire products. Our Rhenium Wire is 99.99% pure and has high strength and excellent ductility. Tungsten-Rhenium Wire is a staple in thermocouples and electronics ...

When it enters processing, molybdenum concentrate contains 75–95% molybdenum and rhenium sulfide, as well as accompanying copper, iron, zinc, and lead sulfides, and impurities, namely, silicon and aluminum oxides and calcium and magnesium carbonates. Molybdenum concentrate contains 45–55% molybdenum and 30–35% sulfur.

S>The constitution diagram was plotted of tungsten and molybdenum solid solutions with up to 50 wt.% ( approximately -40 to 45 at.%) rhenium. The alloys with cross sections parallel to W - Mo, with content of 10, 20, 30, 40, and 50% rhenium, were analyzed, and three isothermal cross sections of cast alloys, annealed at 1750 deg C for 3 hr and ...

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.

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 51[percent] rhenium were produced to examine the mechanical properties at room temperature, 1073K, and 1473K.

Abstract. Molybdenum-rhenium alloys containing less than 15% Re have been investigated for space-nuclear power-system applications. A ductile-brittle transition temperature of less than 135/sup 0/K has been demonstrated for recrystallized Mo-13 wt % Re alloy. Thermophysical properties have been measured over the temperature range from …

Rhenium and osmium isotopes have been used for decades to date the formation of molybdenite (MoS 2), a common mineral in ore deposits and the world's main source of molybdenum and rhenium.

Molybdenum-Rhenium is a new biomaterial to the orthopedic market that is exciting because of its biocompatibility, MRI and CT compatibility, and corrosion resistance. Its combination of high tensile …

1. Introduction. Molybdenum (Mo) is a versatile material that is used in a wide variety of applications due to its high melting point, high temperature mechanical properties, high thermal and electrical conductivity, low coefficient of thermal expansion (CTE), and corrosion resistance in molten metal and molten salt environments [[1], [2], [3]]. ...

@article{osti_5909672, title = {Thermophysical properties of molybdenum and rhenium}, author = {Hixson, R S and Winkler, M A}, abstractNote = {Thermophysical properties measurements have been made on the metals molybdenum and rhenium at high temperatures and a pressure of 0.2 GPa. These measured properties include …

The addition of 7 wt.% rhenium to the ODS molybdenum did not significantly enhance the mechanical properties. However, the addition of 14 wt.% rhenium to the ODS molybdenum resulted in a DBTT well below room temperature in both the stress-relieved and recrystallized condition.

@article{osti_1003423, title = {Ductility and impact resistance of P/M molybdenum-rhenium alloys}, author = {Leichtfried, Gerhard and Schneibel, Joachim H and Heilmaier, M.}, abstractNote = {Mo-Re alloys containing between 5 and 47.5 wt pct Re were fabricated from Mo and Mo-Re powders by sintering and hot radial forging. The …

Tools. We demonstrate that electronic transport through single molecules or molecular ensembles, commonly based on gold (Au) electrodes, can be extended to …

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.

Molybdenum (Mo), as a rare and refractory metal with a melting point of 2620 °C, is a non-renewable strategic metal for the development of high-tech industries, and it …

Molybdenum (Mo) and rhenium (Re) are strategic key metals for the development of modernization. In nature, 99 wt.% of Re is associated with molybdenite minerals via the form of isomorphism, and the element abundance of Mo (about 1.1–1.5 ppm) and Re (about 0.0004–0.0026 ppm) is tremendous in the continental crust.

Alloys of molybdenum and rhenium are more ductile than pure molybdenum. An alloy with 35% Re can be rolled at room temperature to more than 95% reduction in thickness before cracking. For economic reasons, molybdenum-rhenium alloys are not widely used commercially. ... Using the Advanced Search page, define the search criteria by …

The geochemical link between rhenium and molybdenum is based on the similar radii of Re 4+ (77 pm) and Mo 4+ (79 pm). ReS 2 and MoS 2 also form identical …

a) Molybdenum complex, b) Rhenium complex. It is important to discuss the toxicity of HES for their future application in metal extraction processes. Previous works have pointed out that some eutectic solvents could show high toxicity [63], [64] and could be less environmentally friendly than expected because of the synergistic effect of their ...

Molybdenum (Mo) is a refractory metal that keeps its body-centred cubic (bcc) crystal structure from room temperature all the way to its high melting temperature of 2,610 °C.

The Mo Re alloy powders synthesized using the novel carbon‑hydrogen synergistic reduction method display a spherical morphology, with particle sizes ranging …

Rhenium concentration in scrubbed liquor remains significantly less (30–200 mg/L) than Mo(VI) concentration []; however, the high economic value of rhenium over molybdenum is more attractive to the metallurgists in recent time.Flue-dusts' leaching in water/dil. H 2 SO 4 followed by ion exchange and solvent extraction are the major …