Search results
Results from the WOW.Com Content Network
Niobium-92 is an extinct radionuclide [6] with a half-life of 34.7 million years, decaying predominantly via β + decay. Its abundance relative to the stable 93 Nb in the early Solar System, estimated at 1.7×10 −5, has been measured to investigate the origin of p-nuclei.
Atomic number (Z): 41: Group: group 5: Period: period 5: Block d-block Electron configuration [] 4d 4 5sElectrons per shell: 2, 8, 18, 12, 1: Physical properties ...
Farm to Market Road 2300 (FM 2300) is located in Carson and Gray counties.. The southern terminus of FM 2300 is at Business I-40 in Groom in Carson County. [2] The highway travels north along Eastern Avenue and has a junction with I-40 before leaving the town.
Niobium-1% zirconium is used in rocketry and in the nuclear industry. It is regarded as a low-strength alloy. [1] [2]C-103, which is 89% Nb, 10% Hf and 1% Ti, is used for the rocket nozzle of the Apollo service module and the Merlin vacuum [3] engines; it is regarded as a medium-strength alloy.
Depending on the supercharger fitted, engines were rated as low altitude (e.g.; Merlin 66, Griffon III), where the engine produced its maximum power below about 10,000 feet (3,000 m), medium altitude (Merlin 45), where the engine produced its maximum power up to about 20,000 feet (6,100 m), and high altitude (Merlin 70), where the engine produced its maximum power above about 25,000 feet ...
The room temperature form of NbO 2 has a tetragonal, rutile-like structure with short Nb-Nb distances, indicating Nb-Nb bonding. [3] The high temperature form also has a rutile-like structure with short Nb-Nb distances. [4]
Niobium carbide has a Young's modulus of approximately 452 GPa, and a shear modulus of 182 GPa. [1] It has a Poisson's ratio of 0.227. [1]Niobium carbide is a frequent intentional product in microalloyed steels due to its extremely low solubility product in austenite, the lowest of all the refractory metal carbides.
Niobium oxide, archaically called columbium oxide, [1] may refer to: . Niobium monoxide (niobium(II) oxide), NbO; Niobium dioxide (niobium(IV) oxide), NbO 2; Niobium pentoxide (niobium(V) oxide), Nb 2 O 5