Iipropati zeTantalum
| Inombolo ye-atom | 73 |
| Inombolo yeCAS | 7440-25-7 |
| Ubunzima beatom | 180.95 |
| Indawo yokunyibilika | 2 996 °C |
| Indawo yokubilisa | 5 450 °C |
| Umthamo weatom | 0.0180 nm3 |
| Uxinzelelo kwi-20 °C | 16.60g/cm³ |
| Ubume beCrystal | cubic egxile kumzimba |
| I-Lattice rhoqo | 0.3303 [nm] |
| Ubuninzi kumhlaba womhlaba | 2.0 [g/t] |
| Isantya sesandi | 3400m/s (kwi-rt)(intonga ebhityileyo) |
| Ukwandiswa kweThermal | 6.3 µm/(m·K) (ku-25 °C) |
| I-Thermal conductivity | 173 W/(m·K) |
| Ukumelana nombane | 131 nΩ·m (ku-20 °C) |
| Mohs ubulukhuni | 6.5 |
| Vickers ubulukhuni | 870-1200Mpa |
| Ukuqina kweBrinell | 440-3430Mpa |
I-Tantalum yikhemikhali enophawu u-Ta kunye nenombolo ye-athomu engu-73. Ngaphambili yayibizwa ngokuba yi-tantalium, igama layo livela ku-Tantalus, i-villain evela kwi-mythology yamaGrike. I-Tantalum yintsimbi enqabileyo, eqinile, ebhlowu-ngwevu, iguquguqukayo ekhazimlayo ekwaziyo ukumelana nomhlwa. Iyingxenye yeqela lesinyithi elichasayo, elisetyenziswa ngokubanzi njengezinto ezincinci kwi-alloys. I-inertness yekhemikhali ye-tantalum yenza ukuba ibe yinto exabisekileyo kwisixhobo selabhoratri kunye nokuthatha indawo yeplatinam. Eyona nto isetyenziswayo namhlanje kwi-tantalum capacitors kwizixhobo zombane ezifana neeselfowuni, iisidlali zeDVD, iinkqubo zemidlalo yevidiyo kunye neekhompyuter. I-Tantalum, ehlala idibene ne-niobium yeekhemikhali efana nekhemikhali, iyenzeka kumaqela amaminerali e-tantalite, i-columbite kunye ne-coltan (umxube we-columbite kunye ne-tantalite, nangona ingaqatshelwa njengeentlobo zamaminerali ahlukeneyo). I-Tantalum ithathwa njengento ebaluleke kakhulu kwitekhnoloji.
Iimpawu ezibonakalayo
I-Tantalum imnyama (blue-gray), ixinene, i-ductile, iqinile kakhulu, yenziwe lula, kwaye iqhuba kakhulu ubushushu kunye nombane. Intsimbi idume ngokuxhathisa ukubola ngeeasidi; enyanisweni, kumaqondo obushushu angaphantsi kwe-150 °C tantalum iphantse yakhuseleka ngokupheleleyo ekuhlaselweni yi-aqua regia eqhelekileyo. Inokuchithwa nge-hydrofluoric acid okanye i-acidic solutions equkethe i-ion fluoride kunye ne-sulfur trioxide, kunye nesisombululo se-potassium hydroxide. Indawo yokunyibilika ephezulu ye-Tantalum ye-3017 °C (indawo yokubila i-5458 °C) igqithwa phakathi kwezinto kuphela nge-tungsten, i-rhenium kunye ne-osmium yesinyithi, kunye nekhabhoni.
I-Tantalum ikhona kwizigaba ezibini zekristale, i-alpha kunye ne-beta. Inqanaba le-alpha lincinci kwaye lithambile; Inesakhiwo se-cubic esisembindini womzimba (iqela lesithuba i-Im3m, ileti engaguqukiyo a = 0.33058 nm), ukuqina kweKnoop 200–400 HN kunye nokumelana nombane 15–60 µΩ⋅cm. Isigaba se-beta sinzima kwaye si-brittle; i-crystal symmetry yayo yi-tetragonal (iqela lesithuba P42/mnm, a = 1.0194 nm, c = 0.5313 nm), ukuqina kweKnoop yi-1000–1300 HN kunye nokumelana nombane kuphezulu kakhulu kwi-170–210 µΩ⋅cm. Isigaba se-beta sinometastable kwaye siguqukela kwisigaba se-alpha xa sifudumeza ukuya kuma-750–775 °C. I-Bulk tantalum iphantse iphelele kwisigaba se-alpha, kwaye isigaba se-beta sihlala sikhona njengeefilimu ezicekethekileyo ezifunyenwe ngokutshiza kwemagnetron, ukubekwa komphunga wekhemikhali okanye ukubekwa kwe-electrochemical kwisisombululo setyuwa esinyibilikisiweyo se-eutectic.
Iimveliso ezishushu zeTantalum
