columbium


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  • noun

Words related to columbium

a former name for niobium

References in periodicals archive ?
Taking into account that for these materials the parameter values got by the finite element method calculation are close to the values P=16/9, Q=-8/9, F=-7/63 got by the model of the polycrystal with the use of the deformation homogeneity hypothesis, for materials with the cubic crystal lattice in the work [7] two-parameter strength criterion was proposed which describes the strength of columbium alloys well.
Metal specialty alloys Carpenter Technology Corp (NYSE:CRS) said on Wednesday that it plans to implement a columbium (Cb / Nb) surcharge with effect with shipments commencing 1 March 2011.
The most profitable resource is coltan, a mineral containing the metals niobium (columbium) and tantalum.
Materials for the wing leading edge protective coatings ranged from columbium (good up to 2,800[degrees]F), molybdenum (3,000[degrees]F), graphite (3,800[degrees]F) and finally, tungsten (4,750[degrees]F).
backlot (1) Columbium columbarium columbarium Copper cropped cropped Curium Urumchi RHD Urumchi RHD Dubnium
Assuming they are approved by the EU Council of Ministers, three-year duty free quotas, unlimited in scope, will be opened for imports into the EU of unwrought magnesium, containing at least 99.8 % by weight of magnesium; titanium sponge; ferro-silico-chromium; honeycomb aluminium blocks for aircraft parts manufacture; non-alloy zirconium ingots, containing by weight more than 0.01 % of hafnium; antimony ingots; beryllium bars, plates and sheets, of a purity by weight of 94 % or more; and niobium (columbium) and titanium alloy bars and rods.
In one earlier report I mentioned seeing some middling specimens of the ferrocolumbite which is intermittently collected from the dumps of the Giles pegmatite prospect, Spargoville, Western Australia, where active questing for columbium and tantalum (and for aquamarine crystals) ceased in the late 1970's.
The IPIS investigation singled out coltan, because, as the organisation puts it, "it is an essential element in the production of mobile phones and computers, symbols par excellence of modern European life." Coltan is a contraction of "colombo-tantalite", an ore combining two rare metals with similar atomic structures: niobium, also known as columbium, and tantalum.
The continent produces many resources, from agricultural products to diamonds, gold, manganese, natural gas, timber, uranium, petroleum, and columbium tantalite or "Col-Tan" used by many western nations in everything from technological innovation in aviation and space exploration to computer chips.
Typical analysis of Project 7000 15Cr-5Ni stainless is: carbon 0.07 max., manganese 1.00 percent max., silicon 1.00 percent max., phosphorous 0.030 percent max., sulfur 0.015 percent max., chromium 14.00/15.50 percent, nickel 3.50/5.50 percent, copper 2.50/4.50 percent, molybdenum 0.50 percent max., columbium 5XC/0.45, tantalum 0.05 percent max., iron balance.