Tantalum is a Block D, Group 5, Period 6 element. The number of electrons in each of Tantalum's shells is 2, 8, 18, 32, 11, 2 and its electronic configuration is [Xe] 4f14 5d3 6s2. In its elemental form tantalum's CAS number is 7440-25-7. The tantalum atom has a radius of 143.pm and it's Van der Waals radius is 200.pm. Tantalum is not toxic. Tantalum has a number of interesting properties that make it particularly useful in electronic applications. Tantalum 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 has the third highest melting point, surpassed only by rhenium and tungsten, yet it is highly conductive to heat and electricity. This has made it the material of choice for electronic capacitors for most telecommunications and hand held electronics equipment, such as cell phones, laptop computers and pagers. Tantalum compounds, such as the oxide and chloride, are the basis for di-electric coatings. Tantalum is added to glass for its high refractive index. It has various applications in nuclear energy. Due to the close relation of tantalum to niobium in the periodic table, Tantalum's name originates from the Greek word Tantalos meaning Father of Niobe in Greek mythology. See Tantalum research below.
Titanium is a Block D, Group 4, Period 4 element. The number of electrons in each of Titanium's shells is 2, 8, 10, 2 and its electronic configuration is [Ar] 3d2 4s2. In its elemental form titanium's CAS number is 7440-32-6. The titanium atom has a radius of 144.8.pm and it's Van der Waals radius is 200.pm. Titanium metal is not considered to be toxic although titanium as metal shavings or powder is considered a fire hazard. In its metallic form it is not only very strong and light weight, but also highly resistant to corrosion. Thus it can be found in numerous aerospace and military applications. In its oxide form it used in low grades to produce a white pigment. Titanium is the bases for numerous commercially essential compound groups, such as titanium titanates in electronic and di-electric formulations and in crystal growth for ruby and sapphire lasers. Titanium 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. Titanium was first discovered by William Gregor in 1791. Titanium was named after the word Titanos which is Greek for Titans. See Titanium research below.
Mitral Valve Annuloplasty : A Quantitative Clinical and Mechanical Comparison of Different Annuloplasty Devices.
Rausch MK, Bothe W, Kvitting JP, Swanson JC, Miller DC, Kuhl E.
Ann Biomed Eng. 2011 Oct 25. [Epub ahead of print]
PMID:
22037916
[PubMed - as supplied by publisher]
The Tetrahydrometalate Species VH2(H2), NbH4, and TaH4: Matrix Infrared Spectra and Quantum Chemical Calculations.
Wang X, Andrews L.
J Phys Chem A. 2011 Oct 24. [Epub ahead of print]
PMID:
22017260
[PubMed - as supplied by publisher]
Controlled Synthesis of Tantalum Oxynitride and Nitride Nanoparticles.
Gao Q, Giordano C, Antonietti M.
Small. 2011 Oct 19. doi: 10.1002/smll.201101207. [Epub ahead of print]
PMID:
22009942
[PubMed - as supplied by publisher]
Surgical Technique: Porous Tantalum Reconstruction for Destructive Nonprimary Periacetabular Tumors.
Khan FA, Rose PS, Yanagisawa M, Lewallen DG, Sim FH.
Clin Orthop Relat Res. 2011 Oct 12. [Epub ahead of print]
PMID:
21989784
[PubMed - as supplied by publisher]
Carbon Radical Generation by d(0) Tantalum Complexes with ?-Diimine Ligands through Ligand-Centered Redox Processes.
Tsurugi H, Saito T, Tanahashi H, Arnold J, Mashima K.
J Am Chem Soc. 2011 Oct 26. [Epub ahead of print]
PMID:
21981364
[PubMed - as supplied by publisher]
Trabecular metal cup without augments for acetabular revision in case of extensive bone loss and low bone-prosthesis contact.
Pierannunzii L, Mambretti A, D'Imporzano M.
Int J Immunopathol Pharmacol. 2011 Jan-Mar;24(1 Suppl 2):133-7.
PMID:
21669152
[PubMed - indexed for MEDLINE]
Effects of the [OC6F5] moiety upon structural geometry: crystal structures of half-sandwich tantalum(V) aryloxide complexes from reaction of Cp*Ta(N(t)Bu)(CH2R)2 with pentafluorophenol.
Cole JM, Chan MC, Gibson VC, Howard JA.
Acta Crystallogr B. 2011 Oct;67(Pt 5):416-24. Epub 2011 Aug 31.
PMID:
21931211
[PubMed]
Surgical Technique: A Cup-in-Cup Technique to Restore Offset in Severe Protrusio Acetabular Defects.
Blumenfeld TJ, Bargar WL.
Clin Orthop Relat Res. 2011 Sep 14. [Epub ahead of print]
PMID:
21915769
[PubMed - as supplied by publisher]
Tantalum (oxy)nitrides: Preparation, characterisation and enhancement of photo-Fenton-like degradation of atrazine under visible light.
Du Y, Zhao L, Su Y.
J Hazard Mater. 2011 Nov 15;195:291-7. Epub 2011 Aug 22.
PMID:
21885191
[PubMed - in process]
Prospective Results of Uncemented Tantalum Monoblock Tibia in Total Knee Arthroplasty Minimum 5-Year Follow-up in Patients Younger Than 55 Years.
Kamath AF, Lee GC, Sheth NP, Nelson CL, Garino JP, Israelite CL.
J Arthroplasty. 2011 Aug 25. [Epub ahead of print]
PMID:
21872424
[PubMed - as supplied by publisher]
X-ray absorption, photoemission spectroscopy, and Raman scattering analysis of amorphous tantalum oxide with a large extent of oxygen nonstoichiometry.
Tsuchiya T, Imai H, Miyoshi S, Glans PA, Guo J, Yamaguchi S.
Phys Chem Chem Phys. 2011 Oct 14;13(38):17013-8. Epub 2011 Aug 24.
PMID:
21863188
[PubMed - in process]
Evaluation of gene expression in MG63 human osteoblastlike cells exposed to tantalum powder by microarray technology.
Sollazzo V, Pezzetti F, Massari L, Palmieri A, Brunelli G, Zollino I, Lucchese A, Caruso G, Carinci F.
Int J Periodontics Restorative Dent. 2011 Jul-Aug;31(4):e17-28.
PMID:
21837296
[PubMed - in process]
Hemocompatibility investigation of the NiTi alloy implanted with tantalum.
Zhao T, Li Y, Gao Y, Xiang Y, Chen H, Zhang T.
J Mater Sci Mater Med. 2011 Oct;22(10):2311-8. Epub 2011 Aug 11.
PMID:
21833606
[PubMed - in process]
[Treatment of adult early femur head necrosis with the tantalum screw].
Luo HY, Chen CW.
Zhongguo Gu Shang. 2011 Jun;24(6):482-5. Chinese.
PMID:
21786551
[PubMed - indexed for MEDLINE]
A comparison of calibration methods for stereo fluoroscopic imaging systems.
Kaptein BL, Shelburne KB, Torry MR, Giphart JE.
J Biomech. 2011 Sep 2;44(13):2511-5. Epub 2011 Jul 23.
PMID:
21783196
[PubMed - in process]
Titanium and tantalum as mesenchymal stem cell scaffolds for spinal fusion: an in vitro comparative study.
Blanco JF, Sánchez-Guijo FM, Carrancio S, Muntion S, García-Briñon J, del Cañizo MC.
Eur Spine J. 2011 Aug;20 Suppl 3:353-60. Epub 2011 Jul 16.
PMID:
21779858
[PubMed - in process]
Synthetic and structural studies of monocyclopentadienyl cyclometalated aryl tantalum(V) compounds.
Galajov M, Galindo A, García C, Gómez M, Gómez-Sal P, Parra A.
Dalton Trans. 2011 Sep 7;40(33):8399-406. Epub 2011 Jul 22.
PMID:
21779602
[PubMed - in process]
Designing catalysts for nitrene transfer using early transition metals and redox-active ligands.
Heyduk AF, Zarkesh RA, Nguyen AI.
Inorg Chem. 2011 Oct 17;50(20):9849-63. Epub 2011 Jul 20.
PMID:
21774482
[PubMed - in process]
A randomised study of peri-prosthetic bone density after cemented versus trabecular fixation of a polyethylene acetabular component.
Periasamy K, Watson WS, Mohammed A, Murray H, Walker B, Patil S, Meek RM.
J Bone Joint Surg Br. 2011 Aug;93(8):1033-44.
PMID:
21768625
[PubMed - indexed for MEDLINE]
Bis(?-2-tert-butyl-phenyl-imido-1:2?N:N)chlorido-2?Cl-(diethyl ether-1?O)(2?-penta-methyl-cyclo-penta-dien-yl)lithiumtantalum(V).
Cole JM, Chan MC, Gibson VC, Howard JA.
Acta Crystallogr Sect E Struct Rep Online. 2011 Jun 1;67(Pt 6):m688-9. Epub 2011 May 7.
PMID:
21754594
[PubMed]
Tailoring nanostructured, graded, and particle-reinforced Al laminates by accumulative roll bonding.
Göken M, Höppel HW.
Adv Mater. 2011 Jun 17;23(22-23):2663-8.
PMID:
21823248
[PubMed - in process]
Highly monodisperse core-shell particles created by solid-state reactions.
Radmilovic V, Ophus C, Marquis EA, Rossell MD, Tolley A, Gautam A, Asta M, Dahmen U.
Nat Mater. 2011 Aug 7. doi: 10.1038/nmat3077. [Epub ahead of print]
PMID:
21822262
[PubMed - as supplied by publisher]
Aerosol Deposition of Hydroxyapatite and 4-Hexylresorcinol Coatings on Titanium Alloys for Dental Implants.
Kim SG, Hahn BD, Park DS, Lee YC, Choi EJ, Chae WS, Baek DH, Choi JY.
J Oral Maxillofac Surg. 2011 Aug 6. [Epub ahead of print]
PMID:
21821331
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Progress in the Removal of Di-[2-Ethylhexyl]-Phthalate as Plasticizer in Blood Bags.
Simmchen J, Ventura R, Segura J.
Transfus Med Rev. 2011 Aug 4. [Epub ahead of print]
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21820855
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Antibacterial effect of silver-platinum coating for orthodontic appliances.
Ryu HS, Bae IH, Lee KG, Hwang HS, Lee KH, Koh JT, Cho JH.
Angle Orthod. 2011 Aug 2. [Epub ahead of print]
PMID:
21810004
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Influence of metal alloy and the profile of coronary stents in patients with multivessel coronary disease.
Abreu Filho LM, Forte AA, Sumita MK, Favarato D, Meireles GC.
Clinics (Sao Paulo). 2011;66(6):985-9.
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21808863
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A combined arc-melting and tilt-casting furnace for the manufacture of high-purity bulk metallic glass materials.
Soinila E, Pihlajama¨ki T, Bossuyt S, Ha¨nninen H.
Rev Sci Instrum. 2011 Jul;82(7):073901.
PMID:
21806193
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Waste-recycling Monte Carlo with optimal estimates: Application to free energy calculations in alloys.
Adjanor G, Athe`nes M, Rodgers JM.
J Chem Phys. 2011 Jul 28;135(4):044127.
PMID:
21806110
[PubMed - as supplied by publisher]
Role of electronic excitation in the amorphization of ge-sb-te alloys.
Li XB, Liu XQ, Liu X, Han D, Zhang Z, Han XD, Sun HB, Zhang SB.
Phys Rev Lett. 2011 Jul 1;107(1):015501. Epub 2011 Jun 29.
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Prediction of the operating point of dendrites growing under coupled thermosolutal control at high growth velocity.
Mullis AM.
Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Jun;83(6-1):061601. Epub 2011 Jun 2.
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21797374
[PubMed - as supplied by publisher]
Metal Anion-Alkyl Ammonium Complexes as Direct Write Precursors to Produce Nanopatterns of Metals, Nitrides, Oxides, Sulfides, And Alloys.
Radha B, Kiruthika S, Kulkarni GU.
J Am Chem Soc. 2011 Jul 26. [Epub ahead of print]
PMID:
21790160
[PubMed - as supplied by publisher]
Characteristics of InGaN-based concentrator solar cells operating under 150X solar concentration.
Yang CC, Jang CH, Sheu JK, Lee ML, Tu SJ, Huang FW, Yeh YH, Lai WC.
Opt Express. 2011 Jul 4;19 Suppl 4:A695-700. doi: 10.1364/OE.19.00A695.
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21747536
[PubMed - in process]
Determination of the magnetic ground state in the martensite phase of Ni-Mn-Z (Z = In, Sn and Sb) off-stoichiometric Heusler alloys by nonlinear AC susceptibility.
Umetsu RY, Fujita A, Ito W, Kanomata T, Kainuma R.
J Phys Condens Matter. 2011 Aug 17;23(32):326001. Epub 2011 Jul 25.
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21785185
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Effects of phase constitution on magnetic susceptibility and mechanical properties of Zr-rich Zr-Mo alloys.
Suyalatu, Kondo R, Tsutsumi Y, Doi H, Nomura N, Hanawa T.
Acta Biomater. 2011 Jul 19. [Epub ahead of print]
PMID:
21784180
[PubMed - as supplied by publisher]
Bioactive glass microspheres as osteopromotive inlays in macrotextured surfaces of Ti and CoCr alloy bone implants: Trapezoidal surface grooves without inlay most efficient in resisting torsional forces.
Keränen P, Moritz N, Alm JJ, Ylänen H, Kommonen B, Aro HT.
J Mech Behav Biomed Mater. 2011 Oct;4(7):1483-91. Epub 2011 May 30.
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21783158
[PubMed - in process]
Effect of the combination of dithiooctanoate monomers and acidic adhesive monomers on adhesion to precious metals, precious metal alloys and non-precious metal alloys.
Ikemura K, Kojima K, Endo T, Kadoma Y.
Dent Mater J. 2011 Jul 28;30(4):469-77. Epub 2011 Jul 21.
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21778614
[PubMed - in process]
Nanoporous PtAg and PtCu alloys with hollow ligaments for enhanced electrocatalysis and glucose biosensing.
Xu C, Liu Y, Su F, Liu A, Qiu H.
Biosens Bioelectron. 2011 Sep 15;27(1):160-6. Epub 2011 Jul 7.
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21778046
[PubMed - in process]
Pt/Cr and Pt/Ni catalysts for oxygen reduction reaction: to alloy or not to alloy?
Escaño MC, Gyenge E, Nakanishi H, Kasai H.
J Nanosci Nanotechnol. 2011 Apr;11(4):2944-51.
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21776658
[PubMed - in process]
In vitro evaluation of the electrochemical behaviour of stainless steel and Ni-Ti orthodontic archwires at different temperatures.
Pakshir M, Bagheri T, Kazemi MR.
Eur J Orthod. 2011 Jul 19. [Epub ahead of print]
PMID:
21771804
[PubMed - as supplied by publisher]
Multifrequency atomic force microscopy: compositional imaging with electrostatic force measurements.
Magonov S, Alexander J.
Microsc Microanal. 2011 Aug;17(4):587-97. Epub 2011 Jul 19.
PMID:
21771386
[PubMed - in process]
Magnetic resonance imaging evaluation of intervertebral test spacers: an experimental comparison of magnesium versus titanium and carbon fiber reinforced polymers as biomaterials.
Ernstberger T, Buchhorn G, Heidrich G.
Ir J Med Sci. 2009 Aug 20. [Epub ahead of print]
PMID: 19693644 [PubMed - as supplied by publisher]
Ultrasonic irradiation and its application for improving the corrosion resistance of phosphate coatings on aluminum alloys.
Sheng M, Wang C, Zhong Q, Wei Y, Wang Y.
Ultrason Sonochem. 2010 Jan;17(1):21-5. Epub 2009 Aug 6.
PMID: 19692286 [PubMed - in process]
Plasma reduction of bronze corrosion developed under long-term artificial ageing.
Novakovic J, Papadopoulou O, Vassiliou P, Filippaki E, Bassiakos Y.
Anal Bioanal Chem. 2009 Aug 15. [Epub ahead of print]
PMID: 19685234 [PubMed - as supplied by publisher]
First-principles studies on alloying and simplified thermodynamic aqueous chemical stability of calcium-, zinc-, aluminum-, yttrium- and iron-doped magnesium alloys.
Velikokhatnyi OI, Kumta PN.
Acta Biomater. 2009 Aug 14. [Epub ahead of print]
PMID: 19683600 [PubMed - as supplied by publisher]
American Elements is a copyrighted U.S. Trademark. All rights reserved.
Titanium is a Block D, Group 4, Period 4 element. The number of electrons in each of Titanium's shells is 2, 8, 10, 2 and its electronic configuration is [Ar] 3d2 4s2. In its elemental form titanium's CAS number is 7440-32-6. The titanium atom has a radius of 144.8.pm and it's Van der Waals radius is 200.pm. Titanium metal is not considered to be toxic although titanium as metal shavings or powder is considered a fire hazard. In its metallic form it is not only very strong and light weight, but also highly resistant to corrosion. Thus it can be found in 
numerous aerospace and military applications. In its oxide form it used in low grades to produce a white pigment. Titanium is the bases for numerous commercially essential compound groups, such as 
titanium titanates in electronic and di-electric formulations and in crystal growth for ruby and sapphire lasers. Titanium 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. Titanium was first discovered by William Gregor in 1791. Titanium was named after the word Titanos which is Greek for Titans. See Titanium research below. 
