Iipropati zeTungsten
| Inombolo ye-atom | 74 |
| Inombolo yeCAS | 7440-33-7 |
| Ubunzima beatom | 183.84 |
| Indawo yokunyibilika | 3 420 °C |
| Indawo yokubilisa | 5 900 °C |
| Umthamo weatom | 0.0159 nm3 |
| Uxinzelelo kwi-20 °C | 19.30g/cm³ |
| Ubume beCrystal | cubic egxile kumzimba |
| I-Lattice rhoqo | 0.3165 [nm] |
| Ubuninzi kumhlaba womhlaba | 1.25 [g/t] |
| Isantya sesandi | 4620m/s (kwi-rt)(intonga ebhityileyo) |
| Ukwandiswa kweThermal | 4.5 µm/(m·K) (ku-25 °C) |
| I-Thermal conductivity | 173 W/(m·K) |
| Ukumelana nombane | 52.8 nΩ·m (ku-20 °C) |
| Mohs ubulukhuni | 7.5 |
| Vickers ubulukhuni | 3430-4600Mpa |
| Ukuqina kweBrinell | 2000-4000Mpa |
I-Tungsten, okanye i-wolfram, yikhemikhali enophawu W kunye nenombolo ye-athomu engu-74. Igama elithi tungsten livela kwigama langaphambili laseSweden le-tungstate mineral scheelite, i-tung sten okanye "ilitye elinzima". I-Tungsten yintsimbi enqabileyo efumaneka ngokwendalo eMhlabeni phantse idityaniswe ngokukodwa nezinye izinto kwiikhompawundi zemichiza kunokuba yodwa. Yachongwa njengento entsha ngo-1781 kwaye yahlala yodwa njengentsimbi ngo-1783. Okubalulekileyo ores kubandakanya i-wolframite kunye ne-scheelite.
Into ekhululekileyo iphawuleka ngokomelela kwayo, ngakumbi into yokuba ineyona ndawo iphezulu yokunyibilika kuzo zonke izinto ezifunyenweyo, inyibilika kwi-3422 °C (6192 °F, 3695 K). Kananjalo ineyona ndawo iphezulu yokubila, kuma-5930 °C (10706 °F, 6203 K). Ubuninzi bayo buphindwe ka-19,3 kunobo bamanzi, xa buthelekiswa nobo beuranium negolide, yaye buphakame kakhulu (malunga nezihlandlo ezili-1,7) kunobo belothe. I-Polycrystalline tungsten yinto enqabileyo kwaye enzima (phantsi kweemeko eziqhelekileyo, xa ingadityaniswa), okwenza kube nzima ukusebenza. Nangona kunjalo, i-tungsten ecocekileyo ye-single-crystalline i-ductile ngakumbi kwaye inokusikwa nge-hacksaw yentsimbi eqinile.
Iialloyi ezininzi ze-Tungsten zinemisebenzi emininzi, kubandakanywa imicu yebhalbhu yokukhanya, iityhubhu ze-X-reyi (njengefilament kunye nethagethi), i-electrodes kwi-gas tungsten arc welding, superalloys, kunye nokukhusela ngemitha. Ubulukhuni beTungsten kunye noxinzelelo oluphezulu lunika izicelo zomkhosi kwiiprojectiles ezingenayo. Iikhompawundi zeTungsten zikwasetyenziswa rhoqo njengezinto zokukhuthaza umzi-mveliso.
I-Tungsten yintsimbi yodwa evela kuluhlu lwesithathu lwenguqu eyaziwayo ukuba yenzeke kwii-biomolecules ezifumaneka kwiintlobo ezimbalwa zebhaktheriya kunye ne-archaea. Yeyona nto inzima eyaziwa njengebalulekile kuyo nayiphi na into ephilayo. Nangona kunjalo, i-tungsten iphazamisa i-molybdenum kunye ne-metabolism yobhedu kwaye ngandlel' ithile iyityhefu kwiindlela eziqhelekileyo zobomi bezilwanyana.
Iimveliso ezishushu zeTungsten
