Tantalum Hlau
Cov hlau ntshiab yog siv hauv kev lag luam hluav taws xob los ua ntau yam khoom siv hluav taws xob (xws li rectifiers, capacitors, filaments, thiab lwm yam). Tantalum kuj tseem siv rau hauv lub tshuab nqus tsev vim tias nws qhov nqus tau zoo ntawm cov roj seem. Nws kuj yog siv los ua cov khoom siv alloying, piv txwv li nrog npib tsib xee thiab molybdenum los tsim cov alloys nrog zoo corrosion kuj, lub zog thiab ductility.
Hauj lwm lawm
Tantalum tau tshawb pom hauv 1802 los ntawm AG Ekeberg hauv Uppsala, Sweden. Tantalum yog ib qho ci iab nyiaj-xim hlau uas hnyav, ntom, ductile thiab malleable thaum ntshiab. Nws muaj nyob rau hauv me me nyob rau hauv cov zaub mov (feem ntau ua ke nrog niobium) thiab yog sib cais los ntawm kev hloov dua siab tshiab rau oxides thiab ces mus rau fluorine complex K2TaF₇, los ntawm cov ntshiab hlau yog ces tau los ntawm electrolysis.
Khoom Description
Vim yog qhov tsim ntawm oxide zaj duab xis, Tantalum yog qhov tsis tshua muaj corrosion-resistant thiab tseem tiv taus acids (tshwj tsis yog HF). Thaum kub kub nws reacts nrog molten alkalis thiab ntau yam uas tsis yog-hlau. Tantalum tuaj yeem siv los hloov platinum hauv cov khoom siv hauv chav kuaj, uas yuav tsum muaj kev tiv thaiv corrosion zoo, thiab rau cov laj thawj zoo sib xws cov hlau kuj tseem siv hauv kev lag luam tshuaj. Cov kua dej hauv tib neeg lub cev tsis hnov mob nrog cov hlau, yog li nws siv hauv kev cog hniav phais tsis ua rau tsis lees paub. Lwm daim ntawv thov suav nrog kev siv tantalum carbide hauv cemented carbides siv los ua cov cuab yeej txiav.
Cov khoom siv hlau zoo tshaj plaws
Tantalum Hlau Khoom (Theoretical)
| Molecular Luj | 180.94 |
|---|---|
| Qhov tshwm sim | Silvery-grey khoom |
| Melting Point | 3017 degree |
| Boiling Point | 5 458d |
| Qhov ntom | 16.69 g / cm²3(20 degree) |
| Solubility hauv H2O | N/A |
| Crystal Phase / Qauv | : body-centered cubic (bcc) / : tetragonal |
| Hluav taws xob Resistivity | 131 nΩ·m (20 degree) |
| Electronegativity | 1.5 Paulings |
| Kub ntawm Fusion | 36.57 kJ/mol |
| Kub ntawm Vaporization | 753 kJ / mol |
| Poisson tus ratio | 0.34 |
| Tshwj xeeb kub | 140 J/kg · K |
| Thermal conductivity | 57.5 W/m·K |
| Thermal Expansion | 6.3 µm/m·K |
| Vickers Hardness | 870-1200 MPa |
| Young's Modulus | 186 GPA |
Loj-scale Hoobkas ntau lawm
FAQ
Q: Koj lub sijhawm xa khoom ntev npaum li cas?
A: Cov khoom yuav raug xa ASAP raws li kev lees paub zoo. Feem ntau, cov qauv xaj lub sijhawm xa khoom yog 6-10 hnub.Container xaj yog li 15-20 hnub.
Q: Cov ntaub ntawv khoom dab tsi kuv yuav tsum tau muab?
A: Koj yuav tsum tau muab cov qib, dav, tuab, txheej thiab tus naj npawb ntawm tons koj xav tau.
Q: Dab tsi yog qhov chaw nres nkoj shipping?
A: Koj tuaj yeem xaiv lwm qhov chaw nres nkoj raws li koj xav tau.
Q: Hais txog tus nqi khoom?
A: Cov nqi sib txawv ntawm lub sijhawm mus rau lub sijhawm vim muaj kev hloov pauv ntawm tus nqi ntawm cov khoom siv raw.
Cim npe nrov: Tuam Tshoj tantalum hlau manufacturers, lwm tus neeg, Hoobkas
