Tungsten-Rhenium Wire has a density almost equal to Tungsten Wire, and is commonly used in thermocouples and electronics products. Our Rhenium Wire is 99.99% pure and has high strength and excellent ductility. Molybdenum-47.5%-Rhenium Wire is used …
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Tungsten-rhenium alloys The rhenium ductilizing effect is more pronounced at higher Re additions (Fig. 6.1) and reaches a maximum at the solid solubility limit (approximately 27 wt% Re). Beyond that, embrittlement occurs due to the formation of a hard and brittle a-phase. The hardness of W-26 Re alloy is 20% larger than that of unalloyed tungsten and the hot tensile strength
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What is claimed is: 1. A process for recovering tungsten and rhenium from a tungsten and rhenium bearing source, said process comprising: (a) firing said source in an oxidizing atmosphere at a temperature of at least about 650° C. for a sufficient time to convert the tungsten and rhenium to their respective oxides, to remove a portion of the rhenium as volatilized oxide, and to form a first ...
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Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal.Its name is derived from the Spanish term platino, meaning "little silver".. Platinum is a member of the platinum group of elements and group 10 of the periodic table of elements.It has six naturally occurring isotopes.
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It is known that the recrystallization temperature of tungsten can be raised by an alloy of tungsten with rhenium, aluminum, silicon or thorium. This in return makes it possible to lengthen the free length of the fiber and thus to improve the ionic protection of the dissipation plate. ... X-ray generator tube comprising an orientable target ...
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The tungsten-rhenium wire was created in efforts to develop a wire that was more ductile after recrystallization. The addition of 3% rhenium to non-sag tungsten produced a wire that is more ductile, without sacing any non-sag characteristics. Properties Of Tungsten-Rhenium Wire. T&D uses non-sag tungsten that is doped with 3% rhenium for a ...
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Jul 04, 2010· Tungsten–rhenium thermocouple types C, D, and G comprise a third category of thermocouples, refractory metal thermocouples, which were developed to be used at high temperatures, in reduced atmosphere or vacuum environments, and should never be used in the presence of oxygen at temperatures above 260°C due to high reaction rates.
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Tungsten Rhenium (W-Re) Alloy Electrode is a grey metallic Rod with one pointy end. SAM offers high quality Tungsten Rhenium Alloy Electrodes. [email protected] (949) 407-8904 ...
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1. A method of forming a material, comprising: providing tungsten and rhenium; and sintering the tungsten and rhenium at high temperature and high pressure. 2. The method of claim 1, wherein the high temperature is within the range of approximately 1000° C. to approximately 2300° C. 3.
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Alibaba.com offers 1,615 tungsten rhenium plate products. A wide variety of tungsten rhenium plate options are available to you,
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performances, detailed investigations of tungsten and rhenium sorption processes on alumina are needed. In our previous papers6,7 the sorption behavior of W and Re, respectively, on alumina under ...
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A tungsten-rhenium filament for an operation temperature between 2900 and 3200° K is disclosed. The filament comprises an aluminum-potassium-silicon (AKS) additive. The filament has a grain microstructure comprising substantially exclusively elongated interlocking grains with a Grain Aspect Ratio (GAR) not less than 12. The rhenium content of the filament is between 0,2-0,4% by weight.
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The U.S. Department of Energy's Office of Scientific and Technical Information
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Comparing tungsten rhenium prices. You can easily wholesale quality tungsten rhenium at wholesale prices on Made-in-China.com.
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US5372661A US08/087,947 US8794793A US5372661A US 5372661 A US5372661 A US 5372661A US 8794793 A US8794793 A US 8794793A US 5372661 A US5372661 A US 5372661A Authority US United States Prior art keywords alloy molybdenum tungsten rhenium ppm Prior art date 1992-02-14 Legal status (The legal status is an assumption and is not a legal conclusion.
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Tungsten-rhenium alloy, W95Re5. undefined. Synonyms: . CAS null. Molecular Weight null. Browse Tungsten-rhenium alloy, W95Re5 and related products at Merck.
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Dec 25, 2009· RHENIUM-TUNGSTEN WIRE, PROCESS FOR PRODUCING SAME, AND MEDICAL NEEDLE COMPRISING SAME (PAT - WO2010100808) ESAKI MOTOAKI TOSHIBA KK. Patent: Publ.of the Int.Appl. with Int.search report - World Intellectual Property Organization. Application: WO2009JP71624 on 2009-12-25. Publication: 2010-09-10. Abstract. Disclosed is a ...
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tungsten tungsten rhenium comprising. Tungsten Rhenium Wire Properties and Uses Union City. About 3% Rhenium/97% Tungsten Wire The development of 3% rhenium/97% tungsten wire is a result of a continuous research effort that has been conducted since the early 1900's. One of the first accomplishments of this research was a non-sag grade of ...
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A tungsten rhenium filament for an operation temperature is between 2900 and 3200° K. The filament comprises an aluminum-potassium-silicon (AKS) additive. The filament has a grain microstructure comprising substantially exclusively elongated interlocking grains with a …
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Alibaba.com offers 1,618 tungsten rhenium plate products. A wide variety of tungsten rhenium plate options are available to you,
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A process for recovering tungsten and rhenium from a alkali tungstate and perrhenate bearing solution, said process comprising: (a) adding sufficient hydrochloric acid to said solution to form a first precipitate containing essentially all of the tungsten as tungstic acid and a first mother liquor having an acid concentration of at least about ...
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A process is disclosed for separating tungsten from a solution containing tungstate and perrhenate ions. The process involves reacting a sufficient amount of hydrochloric acid with the solution at a sufficient temperature to form a solid containing essentially all of the tungsten and a liquor containing essentially all of the rhenium, and separating the solid from the liquor.
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Tungsten rhenium alloy wire-Rheniumet Ltd. -Main Type：WRe3%, WRe5%, WRe25%, WRe26% Main Spec.(mm): φ0.1,φ0.2,φ0.25, φ0.3,φ0.35,φ0.5
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Alibaba.com offers 818 tungsten rhenium wire products. A wide variety of tungsten rhenium wire options are available to you, such as insulation material, application, and conductor material.
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Abstract. A process is described for separating tungsten from a solution containing tungstate and perrhenate ions, the process comprising: (a) reacting hydrochloric acid with the solution at a temperature of at least about 85/sup 0/C to form a solid containing essentially all of the tungsten and a liquor containing essentially all of the rhenium, the amount of the hydrochloric acid being ...
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Tungsten rhenium compounds and composites and methods for forming the same ... A polycrystalline composite material comprising: tungsten-rhenium matrix; and. a polycrystalline ultra hard material dispersed in said matrix and bonded to at least one of the tungsten or the rhenium, ...
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US20090128039A1 US11/912,340 US91234006A US2009128039A1 US 20090128039 A1 US20090128039 A1 US 20090128039A1 US 91234006 A US91234006 A US 91234006A US 2009128039 A1 US2009128039 A1 US 2009128039A1 Authority US United States Prior art keywords rhenium tungsten electrode discharge lamp weight Prior art date 2005-04-27 Legal status (The legal …
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The tungsten-rhenium wire was created in efforts to develop a wire that was more ductile after recrystallization. The addition of 3% rhenium to non-sag tungsten produced a wire that is more ductile, without sacing any non-sag characteristics. Properties Of Tungsten-Rhenium Wire. T&D uses non-sag tungsten that is doped with 3% rhenium for a ...
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The adiabatic single−crystalline elastic constant of W−3 at.% Re and W−10 at.% Re were measured in the temperature range 77−298 °K. The elastic anisotropy ratio, C44/C′, was found to follow the behavior predicted by Fisher for transition−metal alloys. Re additions to W decrease the elastic constant C′ which indicates decreasing stability of the bcc structure.
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The U.S. Department of Energy's Office of Scientific and Technical Information
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US3324005A US419272A US41927264A US3324005A US 3324005 A US3324005 A US 3324005A US 419272 A US419272 A US 419272A US 41927264 A US41927264 A US 41927264A US 3324005 A US3324005 A US 3324005A Authority US United States Prior art keywords tungsten rhenium alloys irradiation neutron Prior art date 1964-12-10 Legal status (The legal status is an assumption and is …
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OSTI.GOV Patent: Method for extracting rhenium and tungsten from wastes of rhenium-tungsten alloys
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A process is disclosed for recovering tungsten and rhenium from a tungsten and rhenium bearing solution. The process involves adding sufficient hydrochloric acid to the solution to form a first precipitate containing essentially all of the tungsten and a first mother liquor having an acid concentration of at least about 1.25 normal, and containing the major portion the rhenium, followed by ...
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Looking for tungsten rhenium factory direct sale? You can buy factory price tungsten rhenium from a great list of reliable China tungsten rhenium manufacturers, suppliers, traders or plants verified by a third-party inspector. Source with confidence.
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The present invention relates to tungsten rhenium compounds and composites and to methods of forming the same. Tungsten and rhenium powders are mixed together and sintered at high temperature and high pressure to form a unique compound. An ultra hard material may also be added. The tungsten, rhenium, and ultra hard material are mixed together and then sintered at high temperature and high ...
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Sep 01, 1992· Tungsten-rhenium-hafnium carbide (W-Re-HfC) alloy is the strongest metallic material at temperatures greater than 2000 K. In the present study, the mechanical properties of tungsten and a W-3.6Re-0.26HfC alloy were determined from 1700 to 2980 K in a vacuum below 10 −5 Pa. HfC particles had an exceptional strengthening effect in the tungsten-rhenium matrix at temperatures up to 2700 K.
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The invention relates to a high-pressure gas discharge lamp (1) comprising a discharge chamber (4) with a gas filling and electrodes (5) disposed in the discharge chamber. At least one of said electrodes is a tungsten alloy electrode, where the alloy is made of (a) ultra-high pure tungsten and (b) at least one of rhenium, osmium, tantalum, hafnium, iridium, and zirconium in a quantity of 0.01 ...
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