niobium
niobium structure
|
Common Name | niobium | ||
|---|---|---|---|---|
| CAS Number | 7440-03-1 | Molecular Weight | 92.90640 | |
| Density | 8.57 g/mL at 25 °C(lit.) | Boiling Point | 4742 °C(lit.) | |
| Molecular Formula | Nb | Melting Point | 2468 °C(lit.) | |
| MSDS | Chinese USA | Flash Point | N/A | |
| Symbol |
GHS02 |
Signal Word | Danger | |
|
Enhancement of adhesive strength of hydroxyapatite films on Ti-29Nb-13Ta-4.6Zr by surface morphology control.
J. Mech. Behav. Biomed. Mater. 18 , 232-9, (2013) Hydroxyapatite (HAp) films were deposited on a β-type titanium alloy, Ti-29Nb-13Ta-4.6Zr (TNTZ), by metal organic chemical vapor deposition (MOCVD) in order to improve its hard-tissue compatibility. The surface morphologies of TNTZ substrates were changed by ... |
|
|
Effect of surface treatment on bond strength of Ti-10Ta-10Nb to low-fusing porcelain.
J. Prosthet. Dent. 109(2) , 95-105, (2013) Ti-10Ta-10Nb alloy is a promising alloy for metal ceramic crowns because of its good corrosion resistance and low cytotoxicity. However, more information is needed on the bond strength between this alloy and porcelain.The purpose of this study was to compare ... |
|
|
Dehydration of glycerol over niobia-supported silicotungstic acid catalysts.
J. Nanosci. Nanotechnol. 13(1) , 339-43, (2013) Liquid-phase dehydration of glycerol to acrolein over nanosized niobia-supported silicotungstic acid catalysts was performed to investigate the effect of the silicotungstic acid loading on the catalytic performance of the catalysts. The catalysts were prepare... |
|
|
Mechanism of enhanced optical second-harmonic generation in the conducting pyrochlore-type Pb2Ir2O7-x oxide compound.
Phys. Rev. Lett. 110(18) , 187402, (2013) The structural, electronic, and optical properties of pyrochlore-type Pb(2)Ir(2)O(6)O(0.55)('), which is a metal without spatial inversion symmetry at room temperature, were investigated. Structural analysis revealed that the structural distortion relevant to... |
|
|
Legendre and Laguerre polynomial approach for modeling of wave propagation in layered magneto-electro-elastic media.
J. Acoust. Soc. Am. 133(3) , 1415-24, (2013) A numerical method to compute propagation constants and mode shapes of elastic waves in layered piezoelectric-piezomagnetic composites, potentially deposited on a substrate, is described. The basic feature of the method is the expansion of particle displaceme... |
|
|
Catalytic dehydration of fructose to 5-hydroxymethylfurfural over Nb2O5 catalyst in organic solvent.
Carbohydr. Res. 368 , 78-83, (2013) The catalytic dehydration of fructose to 5-hydroxymethylfurfural (HMF) in DMSO was performed over Nb2O5 derived from calcination of niobic acid at various temperatures (300-700 °C). The catalysts were characterized by powder X-ray diffraction, N2 physical ads... |
|
|
Dehydration of xylose to furfural over MCM-41-supported niobium-oxide catalysts.
ChemSusChem 6(4) , 635-42, (2013) A series of silica-based MCM-41-supported niobium-oxide catalysts are prepared, characterized by using XRD, N2 adsorption-desorption, X-ray photoelectron spectroscopy, Raman spectroscopy, and pyridine adsorption coupled to FTIR spectroscopy, and tested for th... |
|
|
High-rate electrochemical energy storage through Li+ intercalation pseudocapacitance.
Nat. Mater. 12(6) , 518-22, (2013) Pseudocapacitance is commonly associated with surface or near-surface reversible redox reactions, as observed with RuO2·xH2O in an acidic electrolyte. However, we recently demonstrated that a pseudocapacitive mechanism occurs when lithium ions are inserted in... |
|
|
Enhancement of biocompatibility of metal implants by nanoscale tiN/NbN multilayer coatings.
J. Nanosci. Nanotechnol. 13(7) , 4565-72, (2013) Titanium nitride (TiN)/niobium nitride (NbN) nanostructured multilayer coatings were prepared by DC reactive magnetron sputtering method using the combination of a titanium and niobium target and an Ar-N2 mixture discharge gas on to 316L stainless steel subst... |
|
|
Nearly degenerate wavelength-multiplexed polarization entanglement by cascaded optical nonlinearities in a PPLN ridge waveguide device.
Opt. Express 21(6) , 7841-50, (2013) In this paper we report the generation of wavelength-multiplexed polarization-entangled photon pairs in the 1.5-μm communication wavelength band by using cascaded optical second nonlinearities (sum-frequency generation and subsequent spontaneous parametric do... |