Thepa ea Tantalum
| Nomoro ea athomo | 73 |
| Nomoro ea CAS | 7440-25-7 |
| Boima ba athomo | 180.95 |
| Sebaka se qhibilihang | 2 996 °C |
| Ntho e belang | 5 450 °C |
| Bophahamo ba athomo | 0.0180 nm3 |
| Boima ba 20 ° C | 16.60g/cm³ |
| Sebopeho sa kristale | dikubiki tse shebaneng le mmele |
| Lattice kamehla | 0.3303 [nm] |
| Bongata bo teng karolong e ka holimo ea Lefatše | 2.0 [g/t] |
| Lebelo la modumo | 3400m/s (ho rt)(thupa e tšesaane) |
| Katoloso ea mocheso | 6.3 µm/(m·K) (ho 25 °C) |
| Thermal conductivity | 173 W/(m·K) |
| Restivity ea motlakase | 131 nΩ·m (ho 20 °C) |
| Mohs boima | 6.5 |
| Vickers thata | 870-1200Mpa |
| Ho thatafala ha Brinell | 440-3430Mpa |
Tantalum ke ntho ea lik'hemik'hale e nang le letšoao la Ta le nomoro ea athomo ea 73. Pele e ne e tsejoa e le tantalium, lebitso la eona le tsoa ho Tantalus, molotsana oa litšōmo tsa Bagerike.Tantalum ke tšepe e sa tloaelehang, e thata, e putsoa-ea boputsoa, e benyang, 'me e sa bola haholo.Ke karolo ea sehlopha sa litšepe tse refractory, tse sebelisoang haholo e le likarolo tse nyane ka li-alloys.Ho se sebetse ha lik'hemik'hale tsa tantalum ho etsa hore e be ntho ea bohlokoa bakeng sa lisebelisoa tsa laboratori le ho nkela platinum sebaka.Tšebeliso ea eona e kholo kajeno ke li-tantalum capacitor lisebelisoa tsa elektroniki tse kang mehala ea cellular, libapali tsa DVD, sistimi ea lipapali tsa video le likhomphutha.Tantalum, kamehla hammoho le niobium e tšoanang le lik'hemik'hale, e hlaha lihlopheng tsa liminerale tantalite, columbite le coltan (motsoako oa columbite le tantalite, leha e sa tsejoe e le mefuta e fapaneng ea liminerale).Tantalum e nkuoa e le ntho e bohlokoa haholo ho theknoloji.
Lintho tsa 'mele
Tantalum e lefifi (e putsoa-e bohlooho), e teteaneng, e ductile, e thata haholo, e entsoe habonolo, 'me e tsamaisa mocheso le motlakase haholo.Tšepe e tumme ka ho hanyetsa ho bola ka li-acids;ha e le hantle, ka mocheso o ka tlase ho 150 °C tantalum e batla e itšireletsa ka ho feletseng ho hlaseloa ke aqua regia e tloaelehileng e mabifi.E ka qhibiliha ka hydrofluoric acid kapa tharollo ea acidic e nang le fluoride ion le sulfur trioxide, hammoho le tharollo ea potassium hydroxide.Sebaka se phahameng sa ho qhibiliha sa Tantalum sa 3017 °C (sebaka se belang sa 5458 °C) se fetisoa har'a lisebelisoa feela ka tungsten, rhenium le osmium bakeng sa tšepe, le carbon.
Tantalum e teng ka mekhahlelo e 'meli ea kristale, alpha le beta.Karolo ea alpha e batla e le ductile ebile e bonolo;e na le sebopeho sa li-cubic tse bohareng ba 'mele (sehlopha sa sebaka Im3m, lattice constant a = 0.33058 nm), Knoop hardness 200–400 HN le resistivity ea motlakase 15–60 µΩ⋅cm.Mokhahlelo oa beta o thata ebile o brittle;crystal symmetry ke tetragonal (sehlopha sa sebaka P42/mnm, a = 1.0194 nm, c = 0.5313 nm), Knoop hardness ke 1000–1300 HN le resistivity ea motlakase e batla e phahame ho 170–210 µΩ⋅cm.Mokhahlelo oa beta o khona ho fetoha 'me o fetohela ho alpha ha o futhumatsa ho 750-775 °C.Bulk tantalum e batla e le karolo ea alpha, 'me karolo ea beta e atisa ho ba teng e le lifilimi tse tšesaane tse fumanoang ke magnetron sputtering, lik'hemik'hale tsa mouoane oa lik'hemik'hale kapa li-electrochemical deposition ho tsoa motsoako oa letsoai o entsoeng ka eutectic.
Lihlahisoa tse chesang tsa Tantalum
