Tantalum is a chemical element with the symbol Ta and atomic number 73. Previously known as tantalium, it is named after Tantalus, a figure in Greek mythology. Tantalum is a very hard, ductile, lustrous, blue-gray transition metal that is highly corrosion-resistant. It is part of the refractory metals group, which are widely … See more Tantalum was discovered in Sweden in 1802 by Anders Ekeberg, in two mineral samples – one from Sweden and the other from Finland. One year earlier, Charles Hatchett had discovered columbium (now niobium), and in … See more Tantalum forms compounds in oxidation states −III to +V. Most commonly encountered are oxides of Ta(V), which includes all … See more Tantalum is considered a conflict resource. Coltan, the industrial name for a columbite–tantalite mineral from which niobium and tantalum are extracted, can also be found in See more Electronics The major use for tantalum, as the metal powder, is in the production of electronic components, mainly capacitors and some high-power See more Physical properties Tantalum is dark (blue-gray), dense, ductile, very hard, easily fabricated, and highly conductive of … See more Tantalum is estimated to make up about 1 ppm or 2 ppm of the Earth's crust by weight. There are many species of tantalum minerals, only … See more Several steps are involved in the extraction of tantalum from tantalite. First, the mineral is crushed and concentrated by gravity separation. This is generally carried out near the mine site. Refining The refining of … See more WebMaterials Science and Engineering: An Introduction. A hypothetical metal has the simple cubic crystal structure. If its atomic weight is 74.5 g/mol and the atomic radius is 0.145 nm, compute its density. Tantalum (Ta; d = 16.634 g/cm3 and M = 180.9479 g/mol) has a body-centered cubic structure with a unit-cell edge length of 3.3058 \dot {A}.
Tantalum nitride - Wikipedia
WebThe tantalum phenyl complex (R,R)-[Ta(O2C20H10{SiMe3}2-3,3‘)2(Ph)], (R,R)-1, has been prepared from [H2NEt2][Ta(O2C20H10{SiMe3}2-3,3‘)2Cl2] and has been employed for the synthesis of the hydride species (R,R)-[Ta(O2C20H10{SiMe3}2-3,3‘)2(H)], (R,R)-2, by reaction with diisobutylaluminum hydride (DIBAL-H). The reaction proceeds cleanly and … WebTantalum pentoxide (Ta 2 O 5) is a wide-gap semiconductor which has important ... Indeed, the crystal structures are found to be critically dependent on the conditions (e.g., temperatures, pressures) of synthesis and the method of analysis [23]. A number of phases and/or structural models have been chip flick
Crystal structure and thermodynamic properties of cesium …
WebDec 9, 2024 · Crystal structure prediction has been widely used to accelerate the discovery of new materials in recent years. ... HfTa 8 C 9 is obtained by substituting one tantalum atom of TaC with one hafnium ... WebJan 1, 1999 · Crystal structure, electrical properties and electronic band structure of tantalum ditelluride View the table of contents for this issue, or go to the journal homepage for more 1998 J. Phys.: Condens. WebJun 30, 2011 · With density functional theory, structural, electronic and mechanical properties of tantalum monocarbide (TaC) and tantalum mononitride (TaN) of the … grant money to buy a car