Cov khoom ntawm Titanium
| Atomic naj npawb | 22 |
| CAS nr | 7440-32-6 |
| Atomic loj | 47.867 ib |
| Melting point | 1668 ℃ |
| Boiling point | 3287 ℃ |
| Atomic ntim | 10.64 g / cm³ |
| Qhov ntom | 4.506g/cm³ |
| Crystal qauv | Hexagonal unit cell |
| Kev nplua nuj nyob rau hauv lub ntiaj teb crust | 5 600ppm |
| Ceev lub suab | 5090 (m / S) |
| Thermal expansion | 13.6 µm/m·K |
| Thermal conductivity | 15.24 W / (m·K) |
| Hluav taws xob resistivity | 0.42mΩ·m (ntawm 20 ° C) |
| Mohs hardness | 10 |
| Vickers hardness | 180-300 HV |
Titanium yog cov khoom siv tshuaj lom neeg nrog cov cim tshuaj Ti thiab tus lej atomic ntawm 22. Nws yog nyob rau hauv lub sijhawm thib 4 thiab IVB pawg ntawm lub sijhawm ntawm cov tshuaj chemical. Nws yog cov nyiaj dawb hloov pauv hlau uas muaj lub teeb yuag, lub zog siab, nws yog xim hlau luster, thiab tsis kam rau ntub chlorine gas corrosion.
Titanium yog suav hais tias yog cov hlau tsis tshua muaj vim nws tawg thiab nyuaj rau rho tawm qhov xwm txheej. Tab sis nws yog tus nplua nuj, qeb thib kaum ntawm tag nrho cov ntsiab lus. Titanium ores feem ntau muaj xws li ilmenite thiab hematite, uas yog dav faib nyob rau hauv lub crust thiab lithosphere. Titanium kuj muaj nyob rau hauv yuav luag txhua yam kab mob, pob zeb, dej hauv av, thiab av. Extracting titanium los ntawm cov ore loj yuav tsum tau siv Kroll los yog Hunter txoj kev. Qhov sib xyaw ua ke ntawm titanium feem ntau yog titanium dioxide, uas tuaj yeem siv los tsim cov xim dawb. Lwm cov tebchaw muaj xws li titanium tetrachloride (TiCl4) (siv los ua ib qho catalyst thiab hauv kev tsim cov ntxaij vab tshaus los yog cov ntawv sau saum toj saud) thiab titanium trichloride (TiCl3) (siv rau catalyze cov khoom ntawm polypropylene).
Titanium muaj lub zog siab, nrog cov ntshiab titanium muaj lub zog tensile txog li 180kg / mm ². Qee cov hlau muaj lub zog ntau dua li cov titanium alloys, tab sis lub zog tshwj xeeb (qhov piv ntawm lub zog tensile rau qhov ntom ntom) ntawm titanium alloys tshaj cov hlau zoo. Titanium alloy muaj cov cua kub zoo, tsis tshua muaj kub toughness, thiab tawg toughness, yog li nws yog feem ntau siv los ua aircraft cav qhov chaw thiab foob pob ua ntxaij thiab missile structural Cheebtsam. Titanium alloy kuj tseem siv tau los ua roj thiab oxidizer cia tso tsheb hlau luam, nrog rau cov hlab ntsha siab. Tam sim no muaj cov phom tsis siv neeg, mortar mounts, thiab recoilless firing raj ua los ntawm titanium alloy. Hauv kev lag luam roj av, ntau lub thawv, reactors, cua sov exchangers, distillation yees, pipelines, twj, thiab li qub yog siv. Titanium tuaj yeem siv los ua electrodes, condensers rau cov chaw tsim hluav taws xob, thiab cov khoom siv hluav taws xob ib puag ncig. Titanium nickel duab nco alloy tau dav siv hauv cov twj paj nruag thiab ntsuas. Hauv tshuaj, titanium tuaj yeem siv los ua cov pob txha pob txha thiab ntau yam cuab yeej.
Cov khoom kub ntawm titanium
