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A tantalum electrolytic capacitor is an electrolytic capacitor, a passive component of electronic circuits. ... [32] [33] In search of cheaper alternatives, ...
In 1846, Heinrich Rose discovered that tantalite contained an element similar to tantalum and named it niobium. [7] [8] In the 1860s, it was found that niobium and columbium are the same element and are distinct from tantalum. [9] IUPAC officially adopted niobium in 1950 after 100 years of controversy. [10]
Electron-beam furnaces are used for production and refining of high-purity metals (especially titanium, vanadium, tantalum, niobium, hafnium, etc.) and some exotic alloys. [1] The EB furnaces use a hot cathode for production of electrons and high voltage for accelerating them towards the target to be melted.
Most definitions of the term 'refractory metals' list the extraordinarily high melting point as a key requirement for inclusion. By one definition, a melting point above 4,000 °F (2,200 °C) is necessary to qualify, which includes iridium, osmium, niobium, molybdenum, tantalum, tungsten, rhenium, rhodium, ruthenium and hafnium. [2]
A piece of columbite–tantalite, size 6.0 × 2.5 × 2.1 cm. Coltan (short for columbite–tantalites and known industrially as tantalite) is a dull black metallic ore from which the elements niobium and tantalum are extracted.
These steels can contain 26% to 42% chromium as well as 10% to 22% nickel and 1.5 to 10% of titanium, tantalum, vanadium, niobium, aluminum silicon, copper, or molybdenum, etc., or some combination thereof. [citation needed] H1, produced by Myodo Metals, Japan. Used by Spyderco in their salt water/diving knives.
Tantalum is a chemical element; it has symbol Ta and atomic number 73. It is named after Tantalus, a figure in Greek mythology. [11] Tantalum is a very hard, ductile ...
Niobium capacitors are available as alternative to tantalum capacitors, [107] but tantalum capacitors still predominate. Niobium is added to glass to obtain a higher refractive index , making possible thinner and lighter corrective glasses .