Leaching kinetics, separation, and recovery of rhenium and
This paper pertains to the recycling of rhenium from tungstenrhenium wire scrap generated in the manufacturing of W97Re3 wire. Rhenium from wire scrap, which contained 3.13.4% Re, was
Facts, pictures, stories about the element Rhenium in the
Tungsten-rhenium alloy x-ray tube. The conical disk in this sample is a heavy slab of tungsten-rhenium alloy. The structure above holds a filament that releases electrons, which are accelerated with a high voltage to strike the tungsten-rhenium disk, generating x-rays when they strike.
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 1900s. One of the first accomplishments of this research was a non-sag grade of tungsten wire, which used grain growth controlling additives to modify the recrystallized structure. The tungsten-rhenium 
Advancements In Powder Metallurgy Rhenium
Sep 07, 2001· Conventional rhenium powder is an irregularly shaped flake powder having poor flow characteristics and high oxygen concentration (~1,000 ppm). Rhenium Alloys produces a PM grade of rhenium having a purity of 99.99%; the -200 mesh powder has an average 3.5 um particle size, a 1.84 g/cm3 apparent density and a 3.03 g/cm3 tap density.
Separation of tungsten and rhenium on alumina
Keywords: tungsten, rhenium, separation factor, distribution coefficient. INTRODUCTION In recent years particular emphasis has been devoted to the radioisotope 188Re, which is potentially very interesting for applications in nuclear medical therapy. Rhenium-188 (T1/2 = 17 h) is the decay product of its parent188W(T1/2 =
Tungsten Rhenium Alloys
Tungsten-rhenium alloy combinations can be used over a wide temperature range that extends from 320°F to over 5200°F. Standard temperature tables (ASTM E230) are available from 32°F to 4200°F.
Tungsten Rhenium Wire WRe W3Re W5Re W25Re W26Re
Product Information Tungsten Rhenium Thermocouple Wire Type C: Tungsten 5% Rhenium versus Tungsten 26% Rhenium wire Type D*: Tungsten 3% Rhenium versus Tungsten 25% Rhenium wire Type G*: Pure Tungsten versus Tungsten 26% Rhenium wire * Type D and Type G are commonly used industry terms and not ASTM letter designated thermocouples. Concept Alloys takes care
Metallurgy Matters: Making steels stronger
Oct 09, 2003· As we get into modifying a steel's strength and hardness, keep a couple things in mind. First, don't confuse hardness with hardenability. A steel's maximum hardness is a function of its carbon content: more carbon, more hardness.
(PDF) Up-to-date methods for the determination of rhenium
samples, as tungsten absorbs the radiation of rhenium. and reduces the intensity of its analytical signal [39, 40, 42]. An attempt to use a mix
Common X-ray Tube Failure Modes - spellmanhv
Improper Materials: Modern materials like: oxygen free copper, controlled expansion cobalt alloys, rhenium infused tungsten, high hot strength alloys, vacuum grade graphite, high temperature brazes, as well as ceramics and technical glasses have vastly improved tube performance. Because of such improvements a high level of quality assurance is
Tungsten: Properties, Production, Applications & Alloys
Dec 08, 2019· Tungsten-steel alloys are also used in the production of rocket engine nozzles, which must have high heat resistant properties. Other tungsten alloys include Stellite (cobalt, chromium, and tungsten), which is used in bearing and pistons due to its durability and resistance to wear, and Hevimet, which is made by sintering a tungsten alloy powder and is used in ammunition, dart barrels, and
Tungsten Rhenium Alloy AMERICAN ELEMENTS
SECTION 1. IDENTIFICATION. Product Name: Tungsten Rhenium Alloy Product Number: All applicable American Elements product codes, e.g. W-RE-02 , W-RE-03 , W-RE-04 , W-RE-05 CAS #: 12299-18-2 Relevant identified uses of the substance: Scientific research and development Supplier details: American Elements 10884 Weyburn Ave.
NASA Technical Reports Server (NTRS)
Superplasticity in tungsten-rhenium alloys High temperature tensile properties of tungsten- rhenium alloys. Document ID. 19680021133 . Document Type. Other - NASA Technical Note (TN) Authors. Garfinkle, M. (NASA Lewis Research Center Cleveland, OH, United States)
Solution softening mechanism of iridium and rhenium in
Jan 01, 1991· The present results conclude that: (1) a rhenium solid-solution softening effect in pure tungsten also occurs in particle-strengthened tungsten and the softening mechanism for W-Re and W-Re-ThO2 would be the same because the maximum softening occurs at the same rhenium concentration; (2) the addition of iridium has an even stronger softening
Wafer Testing With Tungsten and Tungsten-Rhenium Probe
Jan 01, 1997· Within the past two years, the use of tungsten-rhenium (WRe) needles in the construction of probe cards has greatly increased. Traditionally, tungsten (W) probes were used for many reasonsexcellent stiffness, hardness and wear characteristics.
Lanthanated vs. Thoriated tungsten - Miller Welding
Feb 05, 2010· So i am new to TIG welding and have realized that thoriated tungsten tips are radioactive. I know its minimal but if i can i prefer to stop using them. I have done some research and see that lanthanated tungsten is actually very similar to 2% thoriated and doesn't have any of the radioactive materials. It can even do AC welding.
The interactions between rhenium and interstitial-type
Tungsten (W) and W-based alloys are the leading candidates for plasma-facing materials (PFMs) in future fusion reactors. However, the high energy neutrons generated in fusion reactions not only result in cascade damages but also cause W transmutation. Both the irradiation defects and transmutation products, mainly rhenium (Re), have serious effects on the service behaviors of W PFMs.
Products Cobalt & Specialty Materials
Tungsten carbide powder 0.7µm CW5900. Cobalt & Specialty Material. Rhenium powder APR. Cobalt & Specialty Material. Rhenium Powder White. ECOS MIX 353 Neo Aqua. Cobalt & Specialty Material. Cobalt Liquid. Cobalt & Speciality Materials Chemicals & Compounds. Distilled Naphthenic Acid.
Overview Of The Refractory Metal Rhenium
The life of the tube cathode made of rhenium tungsten alloy is 100 times longer than that of tungsten. Rhenium is also used in the manufacture of electrical contractors, especially in the manufacture of marine ship permanent magnet generator contactors, which are durable. 3.
Rhenium plating - ScienceDirect
Jun 01, 2003· Nominally, rhenium has had only minority uses; e.g., alloyed with tungsten in electric lamp filaments for improved ductility and to reduce reactivity of tungsten heating elements.2 As a catalyst, it is of some importance in catalytic reforming of aromatic hydrocarbons.
Rhenium Tungsten Wire AMERICAN ELEMENTS
Rhenium Tungsten Wires are generally immediately available in most volumes, including bulk orders. American Elements can produce materials to custom specifications by request, in addition to custom compositions for commercial and research applications and new proprietary technologies.
Sintering of mixtures of tungsten and rhenium powders
Jun 01, 1982· When the sintering of a mixture of tungsten and rhenium powders is accompanied by intense diffusional interaction between the components, the composition dependence of shrinkage has a minimum. An x-ray investigation has shown that use of a fine tungsten powder intensifies the formation of tungsten-rich alloys. The reason why the composition dependence of shrinkage has a minimum
Why mix rhenium into tungsten? - Answers
Jun 22, 2011· Why mix rhenium into tungsten? Asked by Wiki User. See Answer. Top Answer. Wiki User Answered 2011-06-22 09:27:53. Rhenium significantly reduces the brittle characteristics of tungsten at room
ToughSF: Liquid Rhenium Solar Thermal Rocket
Oct 23, 2017· A tungsten-rhenium mix has very similar thermal properties and is much cheaper. Sunlight at 1AU provides 1367W/m^2. A broad-spectrum reflecting surface such as polished aluminium would capture and concentrate over 95% of this energy,
Tungsten-rhenium alloy x-ray tube, a sample of the element
Apr 15, 2009· Tungsten-rhenium alloy x-ray tube. The conical disk in this sample is a heavy slab of tungsten-rhenium alloy. The structure above holds a filament that releases electrons, which are accelerated with a high voltage to strike the tungsten-rhenium disk, generating x-rays when they strike.
The Rhenium Effect: An Indispensable Alloying Metal - Matmatch
Tungsten-rhenium (W-Re) alloy is one example that shows improved material properties, most prominently in superplasticity. NASA scientists showed that W-Re alloys with rhenium content of 20-28 at. % can undergo an elongation of at least 200% at 2000°C. The rhenium effect can be observed here, as well. With the introduction of rhenium, a
Tiny Inclusions Reveal Diamond Age and Earths History
Jan 31, 2014· The isotope of rhenium he uses, 187 Re, decays into osmium (187 Os) very slowly, with a half-life of 41.6 x 10 9 years, or 41 billion years. Research using the rhenium-osmium decay system proves that some diamonds are of remarkable antiquity, says Shirey.
Metals Rhenium (Re) Disc Compare, Review, Quotes (RFQ
Information and suppliers of Rhenium (Re) in Disc form. H.C. Starck Solutions; Newton, MA, United States H.C. Starck Solutions converts technology metal powders: molybdenum (Mo), niobium (Nb), tantalum (Ta) and tungsten (W) into semi-finished, finished, and customer-specific products
Tungsten Rhenium (W-Re) Alloy Electrode - ALB Materials Inc
Tungsten Rhenium (W-Re) Alloy Electrode Applications: The tungsten rhenium wire with 3% rhenium content has excellent electron-emitting ability and is an ideal
Why Rhenium is a Vital Industrial Metal Eagle Alloys
Feb 11, 2020· Learn more about why it has transformed into such an important metal below. Rhenium has a very high boiling point and a very high melting point as well. Of all the elements in the world, rhenium has the highest boiling point of all. Think about that for a second. This makes things that contain rhenium very resistant to heat.
Tungsten Rhenium (W-Re) Alloy Electrode - ALB Materials Inc
Tungsten Rhenium (W-Re) Alloy Electrode Applications: The tungsten rhenium wire with 3% rhenium content has excellent electron-emitting ability and is an ideal electrode material for surface modification laser generator
6 Interesting Facts About Rhenium Refractory Metals and
6 Interesting Facts About Rhenium. Rhenium is a rare silver-white metal and belongs to the 6th-period transition metal in the periodic table. It is one of the rarest elements in the earths crust and one of the highest melting and boiling elements.
Sintering of mixtures of tungsten and rhenium powders
When the sintering of a mixture of tungsten and rhenium powders is accompanied by intense diffusional interaction between the components, the composition dependence of shrinkage has a minimum. An x-ray investigation has shown that use of a fine tungsten powder intensifies the formation of tungsten-rich alloys. The reason why the composition dependence of shrinkage has a minimum
Tungsten Rhenium (W-Re) Alloy Sheets - ALB Materials Inc
Tungsten Rhenium (W-Re) Alloy Sheets / Plate / Board Description: ALB Materials Inc is a trust supplier of Tungsten Rhenium (W-Re) Alloy Sheets / Plate / Board. We can provide WRe 1~26wt% alloy sheets.
US4278641A - Method for extracting rhenium and tungsten
Rhenium and tungsten are recovered from a rhenium tungsten alloy by electrochemically dissolving the alloy in substantially 4 to 5 normal sodium hydroxide to form a rhenium-containing solution, solvent extracting the rhenium-containing solution with an organic heteroatom-containing solvent (e.g. pyridine) or acetone to form a second solution of the solvent containing rhenium, distilling the
What Would You Do? (Vol.12) Put a Ring on Your Ship
The kansen come at Tungsten with slashes, claw and gunpowder. Katana scrapes on scales, claws against claws, bullets stop each other in their tracks. Sparkles fly everywhere. Amidst the chaos, Tungsten hears a familiar scream. Tail whipping Spree away, Tungsten turn to see Rhenium's eye grabbed by the commander.
Luma Tungsten Wire alloyed with 3% Rhenium
860 An alloy of tungsten and 3% Rhenium 861 A wire of 860 standard quality which has passed the requisite tests to meet the demands for wire of a higher standard. Properties of bare tungsten wire alloyed with 3% Rhenium Purity of tungsten before rhenium addition 99.95% W Melting point 3380 °C Density 19.22 g/cm3 Specific electrical resistance
Rhenium behavior in molybdenite in hypogene and near
Feb 01, 1993· Rhenium and tungsten counting times were 30 sec with 30 sec background counting time. This ensured a lower detection limit of 0.01 wt% for Re, with 0.01 wt% la. An average of five grains from each sample were analyzed, and the average for each sample is reported in Table 1.