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Tantalum oxide is used to make special high refractive index glass for camera lenses. [80] Spherical tantalum powder, produced by atomizing molten tantalum using gas or liquid, is commonly used in additive manufacturing due to its uniform shape, excellent flowability, and high melting point. [81] [82]
Tantalum ores often contain significant amounts of niobium, which is itself a valuable metal.As such, both metals are extracted so that they may be sold. The overall process is one of hydrometallurgy and begins with a leaching step; in which the ore is treated with hydrofluoric acid and sulfuric acid to produce water-soluble hydrogen fluorides, such as the heptafluorotantalate.
The metals form different oxides: vanadium forms vanadium(II) oxide, vanadium(III) oxide, vanadium(IV) oxide and vanadium(V) oxide, niobium forms niobium(II) oxide, niobium(IV) oxide and niobium(V) oxide, but out of tantalum oxides only tantalum(V) oxide is characterized. Metal(V) oxides are generally nonreactive and act like acids rather than ...
Tantalum(V) ethoxide optical coatings can be produced by low pressure chemical vapour deposition. [10] At pressures as low as 1.33 mPa and temperatures of 700 °C, a silica film of the desired depth is first deposited by the decomposition of tetraethoxysilane , Si(OEt) 4 , or di- t -butyoxydiacetoxysilane, Si(OC(CH 3 ) 3 ) 2 (OOCCH 3 ) 2 , then ...
Pt metal: Catalyst refining of petroleum and magnetic coating of computer hard discs Iridium (Ir) Ir: Crucibles for the electronics industry Osmium (Os) Os alloys: High wear applications such as instrument pivots and electrical contacts Tantalum (Ta) Ta oxide: Capacitors in automotive electronics, personal computers and cell phones Ta metal
In addition to the high grade lithium oxide results up to 4.74 Li 2 0 over 15 meters reported by HLM January 10, 2013, the program has also identified tantalum (Ta), niobium (Nb), and tin (Sn ...
The mineral group tantalite [(Fe, Mn)Ta 2 O 6] is the primary source of the chemical element tantalum, a corrosion (heat and acid) resistant metal.It is chemically similar to columbite, and the two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in many mineral guides.
Single crystals of TaB, Ta 5 B 6, Ta 3 B 4 or TaB 2 (about 1 cm diameter, 6 cm length) can be produced by the floating zone method. [2] [3]Tantalum boride films can be deposited from a gas mixture of TaCl 5-BCl 3-H 2-Ar in the temperature range 540–800 °C.