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Molybdenite is the world's principal source of rhenium (Re), a critical element in multiple high-tech applications. However, the Re contents in molyb Rhenium in …
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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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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 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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A study of molybdenum and three dilute molybdenum-rhenium alloys was undertaken to determine the effects of rhenium on the low-temperature ductility and other mechanical properties of molyb-denum. Alloys containing 3.9, 5.9, and 7.7 atomic percent rhenium all exhibited lower ductile-brittle transition temperatures than did the unalloyed molybdenum.
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Rhenium is soluble in molybdenum up to 50 wt.% and has been shown to improve both low and high temperature mechanical properties of the material. 11, 12 The …
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Molybdenum-Rhenium Sheet. Rhenium Alloys offers Rhenium and Molybdenum-Rhenium in plate, sheet, foil and ribbon. For over 45 years, Rhenium Alloys has been delivering high performance refractory metals …
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Molybdenum-Rhenium (MoRe) is a disordered superconducting alloy with a noble surface chemistry and a relatively high transition temperature. These properties make it attractive for SMR applications, but characterization of MoRe SMR has not yet been reported. Here, we present the fabrication and characterization of SMR fabricated with a …
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Rhenium is the fourth densest element exceeded only by platinum, iridium, and osmium. Rhenium's high melting point is exceeded only by those of …
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Molybdenum is a paramagnetic metal with molar magnetic susceptibility χ m (SI) = 9.05 × 10 −4 cm 3 mol −1 at 22 °C [ 9 ]. Fig. 7.3. Variation of specific electrical resistance of unalloyed molybdenum with temperature ( curve —recommended values, arrows —data spread available in literature) [ 5, 9, 11] Full size image.
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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. We also examined the degradation …
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Rhenium (Re), niobium (Nb), and molybdenum (Mo) are commonly used alloying elements in superalloys. The thermodynamic models for Mo–Nb, Mo–Re, and Nb–Re binary systems have been recently proposed by Xiong et al. [5], Yang et al. [6], and Liu et al. [7], respectively.
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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 …
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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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out of rhenium and molybdenum from molybdenite roasting dust in NaOH solution was examined based on thermody-namic estimation. The chemical reactions which can take place when rhenium and molybdenum are leached out from their oxides in NaOH solution are presumably suggested as follows; ReO2 þNaOH þ3=4O2 Naþ þ ReO4 þ 1=2H2O ð …
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Technology - MiRus. With over 15 years of research and development, the MoRe ® Rhenium-based Superalloy is dramatically superior to current medical alloys such as Titanium and Cobalt Chromium. MoRe ® is far stronger, more fatigue resistant, more biofriendly and generates far lower levels of metal ions in tissue. Play. Molybdenum …
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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. Additionally, the tensile strength of ODS Mo-14Re is greater than the base ODS molybdenum at 1,000 to 1,250 C.
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Two different charges (SRTPO80718 and PDMPB1350) of pure molybdenum powder with high purity (>99.5% purity) and molybdenum rhenium alloys with 48% and 41% of rhenium (Mo48Re and Mo41Re) did not lower the cell viability in comparison to the control. The positive control with H 2 O 2 showed the functionality of …
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rosion currents of molybdenum and rhenium are low and close to each other: 0.5 µA/cm2 for molybdenum and 0.4 µA/cm2 for rhenium. The corrosion currents of rhenium and molybdenum in the alkaline ...
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Expectation of fundamentally new phenomena owing to multiband superconductivity stimulates a search for novel materials with, at least, two distinct gaps in the superconducting state. Recent temperature-dependent electronic heat capacity and lower critical field measurements for molybdenum-rhenium alloys have revealed …
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There are three typical crystal structures of TMCs including face-centered cubic (fcc), hexagonal-close-packed (hcp) and simple hexagonal (hex) structures.These three structures are shown in Fig. 1.The typical structures for molybdenum carbide are α-MoC 1− x, β-Mo 2 C and MoC, which corresponds to the fcc, hcp and hex structures, …
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The extraction, supply, market price and recycling of the metals molybdenum and rhenium were modelled using an integrated system dynamics model. The resource estimates made here resulted in significantly larger estimates than earlier studies for molybdenum. Present molybdenum resources are about 75–80 million ton and about 7 …
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such as tungsten, molybdenum, and rhenium have many advantages for different applications, especially when alloyed together. In this study, an additively manufactured alloy containing 70% molybdenum, 25% tungsten, and 5% rhenium (70Mo-25W-5Re) is tested for its strength, ductility, hardness, and porosity.
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TF: 888-RHENIUM (888-743-6486) PH: 440-365-7388 FX: 888-366-9830 Yesterday's Pioneer, Today's Leader. rhenium
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Molybdenum-rhenium alloys containing 40 to 48% Re by weight are commonly used for many high-technology applications. Higher rhenium contents bring the alloys into a two-phase region with the presence of brittle [sigma]-phase, an intermetallic compound with the approximate composition of Mo[sub 2]Re[sub 3]. Alloys with lower …
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The solid solubility of molybdenum in rhenium is 15 at.% at 2500 C and 8 at.% ant 900 C. Two intermediate phases occur in the system. The sigma phase has a wide homogeneity range, 52 to 71 at.% rhenium at 2400 C, and forms peritectically from rhenium solid solution and liquid at 72 at.% rhenium, 2520 C. The /sub X/ phase, with the alpha ...
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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 rhenium to ODS Mo …
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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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Due to the strategic importance of rhenium, its expanding consumption, high cost, and shortage of raw materials, its production and processing are gaining increasing attention from the state, industry, and science. Rhenium found in copper-molybdenum, copper, lead, molybdenum, and uranium ores is extracted along with the processing of …
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Molybdenum-Rhenium Alloys d.-C. Carlen and B.D. Bryskin Molybdenum-rhenium alloys containing 40 to 48% Re by weight are commonly used for many high-technology applications. Higher rhenium contents bring the alloys into a two-phase region with the presence of brittle o-phase, an intermetallic compound with the approximate composition …
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