American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopeia/British Pharmacopeia) and follows applicable ASTM testing standards.See safety data and research below and pricing/lead time above. American Elements specializes in producing high purity Aluminum Chromium Sputtering Targets with the highest possible density and smallest possible average grain sizes for use in semiconductor, chemical vapor deposition (CVD) and physical vapor deposition (PVD) display and optical applications. Our standard Sputtering Targets for thin film are available monoblock or bonded with dimensions and configurations up to 820 mm with hole drill locations and threading, beveling, grooves and backing designed to work with both older sputtering devises as well as the latest process equipment, such as large area coating for solar energy or fuel cells and flip-chip applications. Research sized targets are also produced as well as custom sizes and alloys. All targets are analyzed using best demonstrated techniques including X-Ray Fluorescence (XRF), Glow Discharge Mass Spectrometry (GDMS), and Inductively Coupled Plasma (ICP). "Sputtering" allows for thin film deposition of an ultra high purity sputtering metallic or oxide material onto another solid substrate by the controlled removal and conversion of the target material into a directed gaseous/plasma phase through ionic bombardment. "Sputtering" allows for thin film deposition of an ultra high purity sputtering metallic or oxide material onto another solid substrate by the controlled removal and conversion of the target material into a directed gaseous/plasma phase through ionic bombardment. We can also provide targets outside this range in addition to just about any size rectangular, annular, or oval target. 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. We also produce Aluminum as disc, granules, ingot, pellets, pieces, powder, and rod. Other shapes are available by request.
Aluminum is a Block P, Group 13, Period 3 element. The number of electrons in each of Aluminum's shells is 2, 8, 3 and its electronic configuration is [Ne] 3s2 3p1. In its elemental form aluminum's CAS number is 7429-90-5. The aluminum atom has a radius of 143.2.pm and it's Van der Waals radius is 200.pm. Aluminum is not known to be harmful but ingestion may cause Alzheimer's disease.Aluminum is a silvery-white metal that possesses many desirable characteristics. It is light, nonmagnetic and nonsparking.
It stands second among metals in the scale of malleability, and sixth in ductility. It is extensively used in many industrial applications where a strong, light, easily constructed material is needed. Although it's electrical conductivity is only about 60% that of copper, it is used in electrical transmission lines because of its light weight. Pure aluminum is soft and lacks strength, but alloyed with small amounts of copper, magnesium, silicon, manganese, or other elements impart a variety of useful properties. These alloys are of vital importance in the construction of modern aircraft and rockets. Aluminum, evaporated in a vacuum, forms a highly reflective coating for both visible light and radiant heat. They are used to coat telescope mirrors. Aluminum is available as metal and compounds with purities from 99% to 99.9999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. See Aluminum research below.
Chromium is a Block D, Group 6, Period 4 element. The number of electrons in each of Chromium's shells is 2, 8, 13, 1 and its electronic configuration is [Ar] 3d5 4s1. In its elemental form chromium's CAS number is 7440-47-3. The chromium atom has a radius of 124.9.pm and it's Van der Waals radius is 200.pm. Hexavalent chromium is toxic. Chromium is highly resistant to corrosion. This has led to its use in numerous alloying and steel producing applications. When chromium is added to glass or ceramic glazes, it produces a brilliant green. Chromium 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. It is also used as a paint pigment for this purpose.Although chromium metal is an essential trace element, hexavalent chromium (Cr(VI)) is especially toxic and carcinogenic. Recently, chromites have formed the basis for cathode compositions for oxygen generation and fuel cell applications. Chromium information, including Technical Data, Safety Data and its High Purity properties, research, applications and other useful facts are discussed here. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included. Chromium was first discovered by Anders Ekeberg in 1802. Due to its various colorful compounds, Chromium was named after the Greek word 'chroma' meaning color. See Chromium research below.
PACKAGING SPECIFICATIONS FOR BULK & RESEARCH QUANTITIES
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Bullion and bar forms are best if purchasing solely for physical possession and risk exposure.
Characterisation of optically stimulated luminescence dosemeters to measure organ doses in diagnostic radiology.
Endo A, Katoh T, Kobayashi I, Joshi R, Sur J, Okano T.
Dentomaxillofac Radiol. 2011 Nov 24. [Epub ahead of print]
PMID:
22116136
[PubMed - as supplied by publisher]
Metal recovery from high-grade WEEE: A life cycle assessment.
Bigum M, Brogaard L, Christensen TH.
J Hazard Mater. 2011 Oct 17. [Epub ahead of print]
PMID:
22115841
[PubMed - as supplied by publisher]
Protein interactions with nanosized hydrotalcites of different composition.
Bellezza F, Alberani A, Posati T, Tarpani L, Latterini L, Cipiciani A.
J Inorg Biochem. 2011 Oct 8;106(1):134-142. [Epub ahead of print]
PMID:
22115829
[PubMed - as supplied by publisher]
Neurobehavioral toxic effects of perinatal oral exposure to aluminum on the developmental motor reflexes, learning, memory and brain neurotransmitters of mice offspring.
Abu-Taweel GM, Ajarem JS, Ahmad M.
Pharmacol Biochem Behav. 2011 Nov 13. [Epub ahead of print]
PMID:
22115621
[PubMed - as supplied by publisher]
Lithium-Ion Conducting Electrolyte Salts for Lithium Batteries.
Aravindan V, Gnanaraj J, Madhavi S, Liu HK.
Chemistry. 2011 Nov 24. doi: 10.1002/chem.201101486. [Epub ahead of print]
PMID:
22114046
[PubMed - as supplied by publisher]
Contact fatigue response of porcelain-veneered alumina model systems.
Stappert CF, Baldassarri M, Zhang Y, Stappert D, Thompson VP.
J Biomed Mater Res B Appl Biomater. 2011 Nov 24. doi: 10.1002/jbm.b.31977. [Epub ahead of print]
PMID:
22113973
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Influence of formulation pH and suspension state on freezing-induced agglomeration of aluminum adjuvants.
Salnikova MS, Davis H, Mensch C, Celano L, Thiriot DS.
J Pharm Sci. 2011 Nov 23. doi: 10.1002/jps.22815. [Epub ahead of print]
PMID:
22113733
[PubMed - as supplied by publisher]
Evidence of foliar aluminium accumulation in local, regional and global datasets of wild plants.
Metali F, Salim KA, Burslem DF.
New Phytol. 2011 Nov 23. doi: 10.1111/j.1469-8137.2011.03965.x. [Epub ahead of print]
PMID:
22111583
[PubMed - as supplied by publisher]
Turning aluminium into a noble-metal-like catalyst for low-temperature activation of molecular hydrogen.
Chopra IS, Chaudhuri S, Veyan JF, Chabal YJ.
Nat Mater. 2011 Nov 23;10(12):986. doi: 10.1038/nmat3174. No abstract available.
PMID:
22109610
[PubMed - in process]
Fabrication of a dual-layer aluminum nanowires polarization filter array.
Gruev V.
Opt Express. 2011 Nov 21;19(24):24361-9. doi: 10.1364/OE.19.024361.
PMID:
22109463
[PubMed - in process]
Image-quality perception as a function of dose in digital radiography.
Lehnert T, Naguib NN, Korkusuz H, Bauer RW, Kerl JM, Mack MG, Vogl TJ.
AJR Am J Roentgenol. 2011 Dec;197(6):1399-403.
PMID:
22109295
[PubMed - in process]
Highly sensitive nano-porous lattice biosensor based on localized surface plasmon resonance and interference.
Yeom SH, Kim OG, Kang BH, Kim KJ, Yuan H, Kwon DH, Kim HR, Kang SW.
Opt Express. 2011 Nov 7;19(23):22882-91. doi: 10.1364/OE.19.022882.
PMID:
22109166
[PubMed - in process]
Regulatory role of zinc during aluminium-induced altered carbohydrate metabolism in rat brain.
Singla N, Dhawan DK.
J Neurosci Res. 2011 Nov 23. doi: 10.1002/jnr.22790. [Epub ahead of print]
PMID:
22108899
[PubMed - as supplied by publisher]
Three-shell-based lens barrel for the effective athermalization of an IR optical system.
Yang HS, Kihm H, Moon IK, Jung GJ, Choi SC, Lee KJ, Hwang HY, Kim SW, Lee YW.
Appl Opt. 2011 Nov 20;50(33):6206-13. doi: 10.1364/AO.50.006206.
PMID:
22108878
[PubMed - in process]
Influences of heat seal lacquer thickness on the quality of blister packages.
Mühlfeld L, Langguth P, Häusler H, Hagels H.
Eur J Pharm Sci. 2011 Nov 16. [Epub ahead of print]
PMID:
22108348
[PubMed - as supplied by publisher]
Efficient extraction of vaccines formulated in aluminum hydroxide gel by including surfactants in the extraction buffer.
Zhu D, Huang S, McClellan H, Dai W, Syed NR, Gebregeorgis E, Mullen GE, Long C, Martin LB, Narum D, Duffy P, Miller LH, Saul A.
Vaccine. 2011 Nov 18. [Epub ahead of print]
PMID:
22107848
[PubMed - as supplied by publisher]
Electronic structure investigation of highly compressed aluminum with k edge absorption spectroscopy.
Benuzzi-Mounaix A, Dorchies F, Recoules V, Festa F, Peyrusse O, Levy A, Ravasio A, Hall T, Koenig M, Amadou N, Brambrink E, Mazevet S.
Phys Rev Lett. 2011 Oct 14;107(16):165006. Epub 2011 Oct 13.
PMID:
22107398
[PubMed - in process]
Short-time electron dynamics in aluminum excited by femtosecond extreme ultraviolet radiation.
Medvedev N, Zastrau U, Förster E, Gericke DO, Rethfeld B.
Phys Rev Lett. 2011 Oct 14;107(16):165003. Epub 2011 Oct 12.
PMID:
22107395
[PubMed - in process]
Nanoporous Polymeric Nanofibers Based on Selectively Etched PS-b-PDMS Block Copolymers.
Birlik Demirel G, Buyukserin F, Morris MA, Demirel G.
ACS Appl Mater Interfaces. 2011 Nov 22. [Epub ahead of print]
PMID:
22107361
[PubMed - as supplied by publisher]
Low bias electron scattering in structure-identified single wall carbon nanotubes: role of substrate polar phonons.
Chandra B, Perebeinos V, Berciaud S, Katoch J, Ishigami M, Kim P, Heinz TF, Hone J.
Phys Rev Lett. 2011 Sep 30;107(14):146601. Epub 2011 Sep 28.
PMID:
22107221
[PubMed - in process]
Evaluation of trace element levels in muscles, liver
and gonad of fish species from São Francisco River of the Paraná Brazilian state
by using SR-TXRF technique. Espinoza-Quiñones FR, Módenes AN, Palácio SM, Szymanski N, Welter RA, Rizzutto
MA, Borba CE, Kroumov AD. Appl Radiat Isot. 2010 Dec;68(12):2202-7. Epub 2010
Jun 8. PubMed PMID: 20828660.
Performance and Stability Improvement of P3HT:PCBM-Based Solar Cells by Thermally
Evaporated Chromium Oxide (CrO(x)) Interfacial Layer. Wang M, Tang Q, An J, Xie F, Chen J, Zheng S, Wong KY, Miao Q, Xu J. ACS Appl Mater Interfaces.
2010 Sep 9. [Epub ahead of print] PubMed PMID: 20828192.
Intraoperative impaction of total knee
replacements: An explicit finite-element-analysis of principal stresses in
ceramic vs. cobalt-chromium femoral components. Kluess D, Mittelmeier W, Bader R. Clin Biomech (Bristol, Avon).
2010 Sep 8. [Epub ahead of print] PubMed PMID: 20828897.
Prevalence of heavy metal resistance in bacteria
isolated from tannery effluents and affected soil. Alam MZ, Ahmad S, Malik A. Environ Monit Assess. 2010 Sep
8. [Epub ahead of print] PubMed PMID: 20824329.
No difference in Gag and Env immune response profiles
between vaccinated and non vaccinated rhesus macaques that control
immunodeficiency virus replication. Nieuwenhuis I, Beenhakker N, Bogers W, Otting N, Bontrop R, Dubois P, Mooij P,
Heeney JL, Koopman G. J Gen Virol. 2010 Sep 8. [Epub ahead of
print] PubMed PMID: 20826621.
The PREHAMI (PREsillion in high-risk acute myocardial
infarction) registry: In-hospital and long-term outcomes. Sciahbasi A, Pendenza G, Romagnoli E, Summaria F, Patrizi R, Lucci V, Giannico
MB, Penco M, Lioy E. Catheter Cardiovasc
Interv. 2010 Sep 7. [Epub ahead of print] PubMed PMID: 20824766.
Bacillus species enhance growth parameters of chickpea
(Cicer arietinum L.) in chromium stressed soils. Wani PA, Khan MS. Food Chem Toxicol. 2010 Sep 6.
[Epub ahead of print] PubMed PMID: 20813149.
Sodium and potassium compounds of
[(eta(6)-benzenecarboxylate)Cr(CO)(3)] and
[(eta(6)-1,4-benzenedicarboxylate)Cr(CO)(3)]. Murugesapandian B, Roesky PW. Dalton Trans. 2010 Sep 3. [Epub
ahead of print] PubMed PMID: 20820615.
Bioaccessibility, bioavailability and toxicity of commercially relevant iron- and
chromium-based particles: in vitro studies with an inhalation perspective. Hedberg Y, Gustafsson J, Karlsson HL, Moller L, Odnevall Wallinder I. Part
Fibre Toxicol. 2010 Sep 3;7(1):23. [Epub ahead of print] PubMed PMID: 20815895.
Metal bases for implant overdentures. Piermatti J, Winkler S. Gen Dent. 2010
Sep-Oct;58(5):400-3. PubMed PMID: 20829164.
Long-term outcomes with
cobalt-chromium bare-metal vs. drug-eluting stents: the REgistro regionale
AngiopLastiche dell'Emilia-Romagna registry. Manari A, Ortolani P, Guastaroba P, Marzaroli P, Menozzi M, Magnavacchi P,
Varani E, Vignali L, Campo G, Marzocchi A. J Cardiovasc Med (Hagerstown). 2010
Sep 1. [Epub ahead of print] PubMed PMID: 20814313.
Optical coherence tomography assessment
of a coronary bare cobalt chromium stent deformed by the removal of an entrapped
"jailed" guidewire. Agostini P, Van Belle E, Stella PR. J Invasive Cardiol. 2010 Sep;22(9):453-5. PubMed PMID:
20814056.
Characterization of the
metabolic and physiologic response to chromium supplementation in subjects with
type 2 diabetes mellitus. Kleefstra N, Houweling ST, Groenier KH, Bilo HJ. Metabolism. 2010 Aug 31. [Epub ahead of print] PubMed
PMID: 20813383.
Comparative proteomic
analysis of Typha angustifolia leaf under chromium, cadmium and lead stress. Bah AM, Sun H, Chen F, Zhou J, Dai H, Zhang G, Wu F. J
Hazard Mater. 2010 Aug 14. [Epub ahead of print] PubMed PMID: 20817397.
Removal of chromium from aqueous
solution using polyaniline - Poly ethylene glycol composite. Samani MR, Borghei SM, Olad A, Chaichi MJ. J Hazard Mater. 2010
Aug 14. [Epub ahead of print] PubMed PMID: 20813454.
Particles, sweat, and tears: A
comparative study on bioaccessibility of ferrochromium alloy and stainless steel
particles, the pure metals and their metal oxides, in simulated skin and eye
contact. Hedberg Y, Midander K, Odnevall Wallinder I. Integr Environ Assess Manag. 2010 Jul;6(3):456-68. PubMed PMID:
20821707.
Bioaccessibility studies of ferro-chromium alloy particles for a simulated
inhalation scenario: A comparative study with the pure metals and stainless
steel. Midander K, de Frutos A, Hedberg Y, Darrie G, Odnevall Wallinder I.Integr Environ Assess Manag. 2010 Jul;6(3):441-55. PubMed PMID: 20821706.
Heavy metals,
hematology, plasma chemistry, and parasites in adult hellbenders (Cryptobranchus
alleganiensis). Huang CC, Xu Y, Briggler JT, McKee M, Nam P, Huang YW. Environ Toxicol Chem. 2010 May;29(5):1132-7. PubMed PMID:
20821549.
Evaluation of hexavalent
chromium in sediment pore water of the Hackensack River, New Jersey, USA. Driscoll SK, McArdle ME, Plumlee MH, Proctor D. Environ
Toxicol Chem. 2010 Mar;29(3):617-20. PubMed PMID: 20821486.
Performance of Moringa oliefera as a
biosorbent for chromium removal. Ghebremichael K, Gebremedhin N, Amy G. Water Sci Technol. 2010;62(5):1106-11. PubMed
PMID: 20818052.