Qhov sib txawv tseem ceeb ntawm niobium thiab titanium yog tias niobium tsis tshua muaj corrosion-resistant, whereas titanium yog corrosion resistant dua niobium.
Niobium thiab titanium yog corrosion resistant, hloov hlau. Peb tuaj yeem sib piv lawv nrog rau ib leeg raws li lawv cov khoom tiv thaiv corrosion vim tias titanium tiv taus corrosion dua li niobium. Txawm li cas los xij, niobium yog pheej yig dua li titanium thiab muaj ntau heev. Yog li ntawd, tib neeg feem ntau siv niobium ua lwm txoj hauv titanium.
Niobium yog dab tsi?
Niobium yog cov tshuaj lom neeg muaj cov cim tshuaj Nb thiab tus lej atomic 41. Nws yog ib lub teeb grey, crystalline khoom thiab kuj yog ib tug ductile hloov hlau. Tus qauv atomic hnyav ntawm niobium yog 9209 amu. Feem ntau, ntshiab niobium muaj ib qho hardness zoo ib yam li hlau. Ntxiv rau qhov no, niobium tuaj yeem nkag mus rau oxidation hauv ntiaj teb huab cua qeeb heev. Yog li, nws tuaj yeem siv los ua hypoallergenic lwm txoj rau nickel. Feem ntau, peb tuaj yeem pom cov hlau no hauv cov zaub mov xws li pyrochlore thiab columbite. Nyob rau hauv chav tsev kub thiab siab, niobium nyob rau hauv lub solid-state.
Daim duab 01: Ib daim ntawv ua los ntawm Niobium
Thaum xav txog qhov tshwm sim ntawm niobium, peb tuaj yeem categorize nws li primordial. Cov qauv siv lead ua ntawm cov hlau no yog lub cev-centred cubic qauv. Lub Moh lub hardness ntawm cov hlau no yog 6.0. Niobium muaj ob peb isotopes, thiab Nb-93 yog cov isotope ruaj khov tshaj plaws.
Niobium hlau yog qhov tseem ceeb hauv kev tsim cov khoom siv superconducting ntau. Cov no yog superconducting alloys uas kuj muaj titanium thiab tin. Cov alloys no muaj txiaj ntsig zoo li superconducting hlau nplaum hauv MRI scanners. Ntxiv rau qhov ntawd, muaj qee qhov kev siv ntawm niobium xws li lub hom phiaj vuam, kev lag luam nuclear, hluav taws xob, optics, thiab jewellery.
Y Titanium yog dab tsi?
Titanium yog cov khoom siv tshuaj muaj lub cim Ti thiab tus lej atomic 22. Nws yog ib qho d block, thiab peb tuaj yeem categorize nws li hlau. Titanium muaj ib tug silvery grey-dawb hlau zoo li. Tsis tas li ntawd, nws yog ib qho kev hloov hlau. Titanium muaj lub zog siab piv rau nws qhov ntom ntom, thiab qhov tseem ceeb tshaj, nws yog corrosion resistant thaum raug dej hiav txwv, aqua regia thiab chlorine.
Daim duab 02: Cov khoom siv Titanium
Rau titanium hlau, tus qauv atomic hnyav yog 47.86 amu. Nws yog nyob rau hauv pawg 4 thiab lub sij hawm 4 ntawm lub periodic table. Lub teeb tsa hluav taws xob ntawm titanium yog [Ar] 3d 2 4s 2 Cov hlau no muaj nyob hauv cov khoom-lub xeev ntawm tus qauv kub thiab siab. Tsis tas li ntawd, lub melting point thiab boiling point ntawm cov hlau no yog 1668 ° C thiab 3287 ° C, feem. Qhov feem ntau thiab ruaj khov oxidation xeev ntawm cov hlau no yog +4.
Ntxiv rau qhov muaj lub zog siab rau qhov hnyav piv, titanium hlau yog qhov zoo nkauj thiab ci ntsa iab. Nyob ntawm nws cov ntsiab lus siab melting, cov hlau no tseem ceeb ua cov khoom siv refractory. Tsis tas li ntawd, titanium yog paramagnetic thiab muaj hluav taws xob tsawg thiab thermal conductivity. Peb tuaj yeem pom titanium hlau feem ntau raws li titanium oxide nyob rau hauv feem ntau cov pob zeb uas tsis muaj zog thiab hauv cov pob zeb uas tau los ntawm cov pob zeb no. Tsis tas li ntawd, titanium yog qhov thib cuaj tshaj plaws nyob rau hauv lub ntiaj teb crust. Rau titanium hlau, feem ntau cov minerals uas nws tshwm sim muaj xws li anatase, brookite, ilmenite, perovskite, rutile, thiab titanite.
Qhov txawv ntawm Niobium thiab Titanium yog dab tsi?
Niobium thiab titanium yog cov hlau hloov pauv. Ob leeg yog cov hlau uas tiv taus corrosion. Qhov sib txawv tseem ceeb ntawm niobium thiab titanium yog tias niobium tsis tshua muaj corrosion-resistant, whereas titanium yog corrosion resistant dua niobium. Niobium yog lub teeb grey, crystalline khoom thaum Titanium muaj cov xim grey-dawb xim hlau.
Ntxiv mus, niobium muaj qhov hnyav-rau-lub zog piv, thaum titanium muaj qhov hnyav-rau-lub zog piv.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm niobium thiab titanium hauv daim ntawv tabular.
Summary – Niobium vs Titanium
Qhov sib txawv tseem ceeb ntawm niobium thiab titanium yog tias niobium tsis tshua muaj corrosion-resistant, whereas titanium yog corrosion resistant dua niobium. Txawm hais tias titanium muaj kev tiv thaiv corrosion ntau dua li niobium, feem ntau ntawm cov sij hawm, niobium yog siv los hloov titanium vim nws tus nqi qis thiab muaj siab.
Image Courtesy:
1. "Niobium hlau" Los ntawm User:Dschwen - Template:CTAVSASCAKPJ (CC BY 2.5) via Commons Wikimedia
2. "Titanium khoom" Los ntawm CSIRO (CC BY 3.0) ntawm Commons Wikimedia
