tungsten rhenium compounds

Superhard Rhenium/Tungsten Diboride Solid Solutions ...

Rhenium diboride (ReB2), containing corrugated layers of covalently bonded boron, is a superhard metallic compound with a microhardness reaching as high as 40.5 GPa (under an applied load of 0.49 N). Tungsten diboride (WB2), which takes a structural hybrid between that of ReB2 and AlB2, where half of the boron layers are planar (as in AlB2) and ...

Rhenium - Uses, Pictures, Characteristics, Properties ...

Rhenium is a rare, silvery-white, lustrous, dense metal. It resists corrosion and oxidation but slowly tarnishes in moist air. Of the elements, only carbon and tungsten have higher melting points and only iridium, osmium, and platinum are more dense.

WebElements Periodic Table » Tungsten » compounds …

In compounds of tungsten (where known), the most common oxidation numbers of tungsten are: 6, and 4. Hydrides The term hydride is used to indicate compounds of the type M x H y and not necessarily to indicate that any compounds listed behave as hydrides chemically.

Hunan Rheniumet Ltd. - Rhenium compounds, Pure …

Rheniumet Ltd is a high-tech enterprise who specialize in research,production,processing and operation of rhenium and rhenium alloy materials,together with deep processing parts and terminal components of rhenium element base.

Rhenium - Wikipedia

Rhenium is a chemical element with symbol Re and atomic number 75. It is a silvery-gray, heavy, third-row transition metal in group 7 of the periodic table.

Molybdenum and Rhenium Compounds - AAA …

For over 27 years AAA Molybdenum Products has supplied industry with a variety of Molybdenum and Rhenium compounds. Our partnership with Powmet, Inc. located in Rockford, Il. increases our product offerings and knowledge base to other metals such as Vanadium, Chromium, and Tungsten.

Reduction, sintering and mechanical properties of rhenium ...

Reduction, sintering and mechanical properties of rhenium-tungsten compounds Article in Journal of Alloys and Compounds 735 · November 2017 with 40 Reads DOI: 10.1016/j.jallcom.2017.11.064

Rhenium & Rhenium Alloys & Compounds - ThomasNet

Custom manufacturer of rhenium & rhenium alloys & compounds. Rhenium compounds are available as powder & pellets. Powder & pellets feature 99.98 percent pure metal content. Rhenium composites are available in sizes ranging from 43 to 74 micrometres. Uses include alloying additive for …

Rhenium and Rhenium Compounds - Wiley Online Library

The metal has many high temperature uses as a pure metal or as an alloy with the elements of molybdenum, tungsten, and nickel. Those uses include filaments in bulbs and mass spectrometers, in thermocouples, and in heating elements.

Rhenium » compounds information - Periodic table

This section lists some binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and some other compounds of rhenium. For each compound, a formal oxidation number for rhenium is given, but the usefulness of this number is limited for p …

Tungsten Rhenium Alloy | AMERICAN ELEMENTS

Tungsten 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, ribbon, wire, shot, sheet, and foil.

Tungsten - Wikipedia

Tungsten, or wolfram, is a chemical element with symbol W and atomic number 74. The name tungsten comes from the former Swedish name for the tungstate mineral scheelite, tung sten or "heavy stone". Tungsten is a rare metal found naturally on Earth almost exclusively combined with other elements in chemical compounds rather than alone.

US20090260299A1 - Tungsten rhenium compounds and ...

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.

Rhenium Alloys: Pure Tungsten wire and rod

Tungsten (W) Tungsten is a brittle, hard, dense, rare metal. The free element is found naturally on Earth only in chemical compounds. Tungsten was identified as a …

Rhenium Compounds for sale - Stanford Advanced …

Rhenium Compounds Rhodium is alloyed with platinum and palladium in electrodes for spark plugs, advanced laboratory equipment and in thermocouples. Rhodium compounds also have catalytic uses in automotive catalytic converters.

Rhenium--tungsten (1/1) | ReW - PubChem

A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound, using a single line of chemical element symbols and numbers.

Rhenium | Encyclopedia.com

Rhenium is a moderately stable metal. It does not react with oxygen and some acids very readily. But it does react with strong acids such as nitric acid (HNO 3) and sulfuric acid (H 2 SO 4).

Rhenium | Re - PubChem

Rhenium shows in its compounds a wide variety of oxidation states ranging from 1 to +7. Rhenium diboride (ReB2) is a hard compound having the hardness similar to that of tungsten carbide, silicon carbide, titanium diboride or zirconium diboride .

US8361178B2 - Tungsten rhenium compounds and …

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.

Reduction, sintering and mechanical properties of rhenium ...

The chemical states of tungsten and rhenium in Re-W compounds are studied with XPS analyzer of PHI Quantera SXM. HXD-1000TMC/LCD analyzer was employed to determine the Vickers hardness of the W-Re alloy sintered substrates.

NAMFZC

WHO WE ARE. Noble Alloys & Minerals FZC is a company registered in UAE. We are a trading and consulting organization assisting companies, dealing in the following products towards their market development in the geography of South East Asia.

Rhenium compounds - an overview | ScienceDirect Topics

Allan J. Amass, in Comprehensive Polymer Science and Supplements, 1989. 6.4.4 Miscellaneous Catalyst Systems. Besides tungsten catalysts (the most important) and molybdenum systems, catalysts based on ruthenium and rhenium compounds are by far the most interesting.

special sheathed thermocouple for vacuum furnace …

1 - : 20090408. thermocouple type sheathed thermocouple and the special form; there is a break...tungsten rhenium thermocouple antioxidant, vacuum furnace heat duality, such ...special sheathed thermocouple for vacuum furnace tungsten-rhenium thermocoup>>

What is rhenium? Where is it commonly found? - Quora

rhenium(Re) s a chemical element with atomic no 75 and it s a silvery white element .There are no known rhenium minerals, and it mainly occurs in molybdenum and beryllium minerals as an impurity.

Tungsten Alloy Composites - SAM - SAMaterials

Tungsten is referred to as one of the toughest matters discovered in nature. it is superb dense and nearly impossible to soften. natural tungsten is a silver-white metallic and while made into a high-quality powder may be combustible and might spontaneously ignite. herbal tungsten includes five solid isotopes and 21 different risky isotopes.

Tungsten Rhenium Ribbon | AMERICAN ELEMENTS

About Tungsten Rhenium Ribbon Tungsten Rhenium Ribbons 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.

Rhenium - USGS

compounds are included in molybdenum concentrates derived from porphyry copper deposits in the Southwestern United States, and rhenium is recovered as a …

134 RHENIUM - USGS

Rhenium compounds are included in molybdenum concentrates derived from porphyry copper deposits, and rhenium is recovered as a byproduct from roasting such molybdenum concentrates. Rhenium-containing products included ammonium perrhenate (APR), metal powder, and perrhenic acid. The major uses of rhenium were in superalloys used in high-temperature turbine engine components and in …