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Tungsten Disc
Product
Product Code
Order or Specifications
99% Tungsten Disc
W-M-02-D
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99.9% Tungsten Disc
W-M-03-D
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99.99% Tungsten Disc
W-M-04-D
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99.999% Tungsten Disc
W-M-05-D
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Tungsten Disc American Elements specializes in producing high purity Tungsten discs with the highest possible densityand smallest possible average grain sizes for use in semiconductor, chemical vapor deposition (CVD) and physical vapor deposition (PVD) display and optical applications. Our standard disc sizes range from 1" to 8" in diameter and from 2mm to 1/2" thick. We can also provide Discs outside this range. Materials are produced using crystallization, solid state and other ultra high purification processes such as sublimation. American Elements specializes in producing custom compositions for commercial and research applications and for new proprietary technologies. American Elements also casts any of the rare earth metals and most other advanced materials into rod, bar or plate form, as well as other machined shapes and through other processes nanoparticles. See research below. We also produce Tungsten as rod, pellets, powder, pieces, granules, ingot, and in compound forms, such as oxide. Other shapes are available by request.

Tungsten is a Block D, Group 6, Period 6 element. The electronic configuration is [Xe] 4f14 5d4 6s2. In its elemental form tungsten's CAS number is 7440-33-7. The tungsten atom has a radius of 137.pm and it's Van der Waals radius is 200.pm. Tungsten has the highest melting point of all the metallic elements and because of this has its first significant commercial application as the filament in incandescent light bulbs and fluorescent light bulbs. Tungsten is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Later it was used in the first television tubes. The first imaging equipment involved X-ray bombardment of a tungsten target. Tungsten expands at nearly the same rate as borosilicate glass and is used to make metal to glass seals. It is the primary metal in heating elements for electric furnaces and in any components where high pressure/temperature environments are expected, such as aerospace and engine systems. Tungsten was first discovered by Fausto and Juan Jose de Elhuyar in 1783.

Formula CAS No. Appearance Molecular Weight
W 7440-33-7 Silvery 183.85
PRODUCT CATALOG Submicron & Nanopowder Tolling Ultra High Purity Sputtering Target Crystal Growth Rod, Plate, Powder, etc.
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Periodic table of the elements science and academic information, elements and advanced materials data, scientific presentations and all pages, designs, concepts, logos, and color schemes herein are the copyrighted proprietary rights and intellectual property of American Elements. American Elements is a U.S. Registered Trademark. © 2001-2009. American Elements. All rights reserved.

 

Recent Research & Development for Tungsten

  • CH(4) Activation by W Atom in the Gas Phase: A Case of Two-State Reactivity Process. Wang Y, Wang Q, Geng Z, Lv L, Si Y, Wang Q, Liu H, Cui D. J Phys Chem A. 2009 Oct 28. [Epub ahead of print] PMID: 19860463 [PubMed - as supplied by publisher]

  • Syntheses, Characterization, and Computational Study of WSF(4) and WSF(4).CH(3)CN. Nieboer J, Hillary W, Yu X, Mercier HP, Gerken M. Inorg Chem. 2009 Oct 27. [Epub ahead of print] PMID: 19860457 [PubMed - as supplied by publisher]

  • Multiply Enhanced Odd-Order Wave-Mixing Spectroscopy. Mathew NA, Block SB, Yurs LA, Kornau KM, Pakoulev AV, Wright JC. J Phys Chem A. 2009 Oct 27. [Epub ahead of print] PMID: 19860444 [PubMed - as supplied by publisher]

  • Collisional Raman linewidths of nitrogen at high temperature (1700-2400 K). Lavorel B, Guillot L, Bonamy J, Robert D. Opt Lett. 1995 May 15;20(10):1189-91. PMID: 19859468 [PubMed - in process]

  • Metathesis of Alkanes and Related Reactions. Basset JM, Cope´ret C, Soulivong D, Taoufik M, Cazat JT. Acc Chem Res. 2009 Oct 26. [Epub ahead of print] PMID: 19856892 [PubMed - as supplied by publisher]

  • Single crystal WO(3) nanoflakes as quartz crystal microbalance sensing layer for ultrafast detection of trace sarin simulant. Zhao Y, He J, Yang M, Gao S, Zuo G, Yan C, Cheng Z. Anal Chim Acta. 2009 Nov 10;654(2):120-6. Epub 2009 Sep 26. PMID: 19854342 [PubMed - in process]

  • Safety and Efficacy of Oral DMSA Therapy for Children with Autism Spectrum Disorders: Part A - Medical Results. Adams JB, Baral M, Geis E, Mitchell J, Ingram J, Hensley A, Zappia I, Newmark S, Gehn E, Rubin RA, Mitchell K, Bradstreet J, El-Dahr J. BMC Clin Pharmacol. 2009 Oct 23;9(1):16. [Epub ahead of print] PMID: 19852789 [PubMed - as supplied by publisher]

  • Outperformed electrochromic behavior of poly(ethylene glycol)-template nanostructured tungsten oxide films with enhanced charge transfer/transport characteristics. Wu WT, Liao WP, Chen LY, Chen JS, Wu JJ. Phys Chem Chem Phys. 2009 Nov 14;11(42):9751-8. Epub 2009 Aug 25. PMID: 19851553 [PubMed - in process]

  • The formation of vertically aligned biaxial tungsten nanorods using a novel shadowing growth technique. Krishnan R, Parker T, Lee S, Lu TM. Nanotechnology. 2009 Nov 18;20(46):465609. Epub 2009 Oct 22. PMID: 19847032 [PubMed - in process]

  • Mechanical Probing of Icelike Water Monolayers. Xu D, Liechti KM, Ravi-Chandar K. Langmuir. 2009 Oct 21. [Epub ahead of print] PMID: 19845370 [PubMed - as supplied by publisher]

  • Nanoscale Tungsten Trioxide Synthesized by In Situ Twin Polymerization. Böttger-Hiller F, Lungwitz R, Seifert A, Hietschold M, Schlesinger M, Mehring M, Spange S. Angew Chem Int Ed Engl. 2009 Oct 20. [Epub ahead of print] No abstract available. PMID: 19844930 [PubMed - as supplied by publisher]

  • A combination of a Drickamer anvil apparatus and monochromatic X-rays for stress and strain measurements under high pressure. Nishiyama N, Wang Y, Irifune T, Sanehira T, Rivers ML, Sutton SR, Cookson D. J Synchrotron Radiat. 2009 Nov;16(Pt 6):742-7. Epub 2009 Sep 11. PMID: 19844008 [PubMed - in process]

  • Triple-Bond Reactivity of an AsP Complex Intermediate: Synthesis Stemming from Molecular Arsenic, As(4). Spinney HA, Piro NA, Cummins CC. J Am Chem Soc. 2009 Oct 20. [Epub ahead of print] PMID: 19842699 [PubMed - as supplied by publisher]

  • [Development of X-ray excited fluorescence spectrometer] Ni C, Gu M, Di W, Cao DH, Liu XL, Huang SM. Guang Pu Xue Yu Guang Pu Fen Xi. 2009 Aug;29(8):2291-4. Chinese. PMID: 19839360 [PubMed - in process]

  • Tungsten speciation and toxicity: Acute toxicity of mono- and poly-tungstates to fish. Strigul N, Koutsospyros A, Christodoulatos C. Ecotoxicol Environ Saf. 2009 Oct 15. [Epub ahead of print] PMID: 19836837 [PubMed - as supplied by publisher]

  • Termination of the W(2)O(y) (-)+H(2)O/D(2)O-->W(2)O(y+1) (-)+H(2)/D(2) sequential oxidation reaction: An exploration of kinetic versus thermodynamic effects. Rothgeb DW, Hossain E, Mayhall NJ, Raghavachari K, Jarrold CC. J Chem Phys. 2009 Oct 14;131(14):144306. PMID: 19831440 [PubMed - in process]

  • Water reactivity with tungsten oxides: H(2) production and kinetic traps. Mayhall NJ, Rothgeb DW, Hossain E, Jarrold CC, Raghavachari K. J Chem Phys. 2009 Oct 14;131(14):144302. PMID: 19831436 [PubMed - in process]

  • Thermodynamic Properties of the Gaseous Gallium Molybdates and Tungstates. Lopatin SI, Shugurov SM, Gunina AO. J Phys Chem A. 2009 Oct 15. [Epub ahead of print] PMID: 19831372 [PubMed - as supplied by publisher]

  • .Hydrothermal synthesis of new wolframite type trimetallic materials and their use in oxidative dehydrogenation of propane. Salamanca M, Licea YE, Echavarría A, Faro AC Jr, Palacio LA. Phys Chem Chem Phys. 2009 Nov 7;11(41):9583-91. Epub 2009 Aug 25. PMID: 19830345 [PubMed - in process]

  • Probing the local temperature by in situ electron microscopy on a heated Si(3)N(4) membrane. Reguer A, Bedu F, Nitsche S, Chaudanson D, Detailleur B, Dallaporta H. Ultramicroscopy. 2009 Sep 22. [Epub ahead of print] PMID: 19828252 [PubMed - as supplied by publisher]

 

 

 

 

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