tantalum


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Related to tantalum: Tantalum capacitor

tan·ta·lum

 (tăn′tə-ləm)
n. Symbol Ta
A very hard, dense, gray metallic element that occurs chiefly in columbite-tantalite and is exceptionally resistant to chemical attack below 150°C. It is used to make electrolytic capacitors for portable electronic and computing devices; superalloys for aircraft, missile, and nuclear reactor parts; filaments; and surgical instruments. Atomic number 73; atomic weight 180.948; melting point 3,017°C; boiling point 5,458°C; specific gravity 16.4; valence 2, 3, 4, 5. See Periodic Table.

[New Latin, from Latin Tantalus, Tantalus (from its high resistance to absorbing acids even when immersed in them); see Tantalus.]

tantalum

(ˈtæntələm)
n
(Elements & Compounds) a hard greyish-white metallic element that occurs with niobium in tantalite and columbite: used in electrical capacitors in most circuit boards and in alloys to increase hardness and chemical resistance, esp in surgical instruments. Symbol: Ta; atomic no: 73; atomic wt: 180.9479; valency: 2, 3, 4, or 5; relative density: 16.654; melting pt: 3020°C; boiling pt: 5458±100°C
[C19: named after Tantalus, with reference to the metal's incapacity to absorb acids]

tan•ta•lum

(ˈtæn tl əm)

n.
a hard, gray, rare metallic element that resists corrosion by most acids: used for chemical, dental, and surgical instruments. Symbol: Ta; at. wt.: 180.948; at. no.: 73; sp. gr.: 16.6.
[< Swedish (1802); after Tantalus, alluding to the nonabsorption of acids]

tan·ta·lum

(tăn′tə-ləm)
Symbol Ta A hard, heavy, gray metallic element that is highly resistant to corrosion at lower temperatures. It is used to make light-bulb filaments, surgical instruments, and glass for camera lenses. Atomic number 73. See Periodic Table.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tantalum - a hard grey lustrous metallic element that is highly resistant to corrosiontantalum - a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
fergusonite - a dark mineral consisting of oxides of yttrium and erbium and tantalum and other minerals
columbite, niobite - a black mineral that is an ore of niobium and tantalum
tantalite - a mineral consisting of tantalum oxide of iron and manganese that occurs with niobite or in coarse granite; an ore of tantalum
Translations
тантал
tantal
tantal
tantalo
tantaal
tantaali
tantal
tantál
tantal
タンタル
tantalas
tantaaltantalium
tantal
tantal
tantal
tantal
tantal
tantal
tantal
тантал
tantalitantan

tantalum

n tantalio
References in periodicals archive ?
By integrating its crash detection algorithms with axitech's unique platform, Tantalum is able to provide instantaneous and comprehensive accident assistance appropriate to the driver's needs.
Ozgur Tohumcu, Tantalum CEO, says the system could change your route to avoid high-pollution areas and automatically pay charges - such as London's Congestion Charge - based on where you've been.
Tantalum is recruiting public and commercial fleets to take part in a 1,000-vehicle test of the solution, which will start in the autumn.
While the full extent of the damage done, and amount of time it will take to be repaired, remains unclear, there are possible implications for tantalum supply.
The metal tantalum is uncommon, making up less than two ten-thousandths of a percent of the mass of Earth's crust.
Tantalum Chip Capacitor, TES Type, 33uF,35V, 10% Tol, 65mOhm ESR, Level B screening, ESCC Part No.
Dramatically reducing the footprint of tantalum capacitors required the restructuring of the entire manufacturing process, as several of the capacitor construction features restricted the size of the tantalum anode that can be utilized within a given package size.
Similarly, miniaturization of surface-mount tantalum capacitors--which have traditionally been the main choice for extremely space-constrained devices that require a large bulk capacitance --has progressed in much the same manner, focusing on reducing inactive volume and maximizing capacitance and voltage characteristics for emerging high-current, low-voltage applications.
Unique surface treatment: Tantalum is one of the most corrosion-resistant metals, but it is also very costly, making solid-tantalum heat exchangers extremely expensive.
In 2012, there were scarcely new tantalum ore projects being put into production.
I use tantalum capacitors as an example because, a few years ago, there was what many trade publications deemed "a shortage of tantalum capacitors" that was incorrectly attributed to a shortage of tantalum.
The USA, where about 60% of tantalum goes for capacitors production, has become the greatest consumer and importer of this metal [1,2].