Txais tos rau peb cov vev xaib!

Nickel yog dab tsi?

Nws yog cov tshuaj lom neeg nrog lub cim tshuaj lom neeg ni thiab atomic tus naj npawb 28. Nws yog ib qho xov tooj uas tsis tshua muaj hlau dawb hlau nrog cov hints ntawm kub hauv nws silvery dawb xim. Nickel yog ib qho kev hloov pauv hlau, nyuaj thiab ductile. Tshuaj lom neeg ntawm cov ntshiab npib tsib xee yog qhov siab heev, thiab cov kev ua no tau pom nyob rau thaj chaw ib puag ncig vim ib txheej tiv thaiv kab mob ib puag ncig. yam. Txawm yog li ntawd, vim muaj kev ua ub no txaus ntawm npib tsib xee thiab oxygen, nws tseem nyuaj nrhiav tau cov khoom siv ntuj uas muaj sia nyob ntawm lub ntiaj teb. Lub ntuj nickel nyob rau lub ntiaj teb saum npoo Nyob rau lub ntiaj teb, lub ntuj nickel no ib txwm ua ke nrog hlau, xav tias lawv yog cov khoom lag luam tseem ceeb ntawm Supernova nucleosynthesis. Nws yog feem ntau ntseeg hais tias lub ntiaj teb tseem ceeb yog tsim ntawm Nickel-hlau sib tov.
Kev siv npib tsib xee (lub ntuj nickel-hlau alloy) hnub rov qab kom deb li 3.00 bc. Axel Frederick Kronstedt yog thawj zaug cais tawm ntawm lub npib tsib xee thiab txhais tau tias yog tshuaj lom neeg nyob rau hauv 1751, txawm tias nws pib yuam kev ntawm tooj liab. Lub npe neeg txawv teb chaws ntawm Nickel los ntawm tib lub npe tsis zoo ntawm cov neeg npe German (Nickname zoo ib yam li tus menyuam yaus "Nick laus" rau dab ntxwg nyoog ua lus Askiv). Cov. Qhov txiaj ntsig kev lag luam ntawm npib tsib xee yog hlau thiab tsis muaj 1-2% npib tsib xee. Lwm cov zaub mov tseem ceeb rau npib tsib xee xws li pentlandite thiab pentlandite. Cov neeg tsim tawm loj ntawm cov neeg muaj npe ntawm Nickel suav nrog thaj av Soderbury hauv Canada (uas feem ntau ntseeg tias yog lub hnub ci ntsa iab (
Vim tias Nickel oxidizes maj mam ntawm chav tsev kub, nws yog feem ntau suav tias yog corrosion resistant. Vim tias qhov no, Nickel tau siv los ntawm cov hlau, xws li hlau thiab muaj qee yam uas yuav tsum muaj cov roj ci ci iab (xws li npib tsib xee nyiaj). Li ntawm 6% ntawm lub ntiaj teb no cov neeg siv npib npib tsib xee yog tseem siv rau corrosion-resistant ntshiab nickel plating. Nickel yog ib zaug sib xyaw ntawm cov npib, tab sis qhov no muaj ntau hloov los ntawm cov hlau pheej yig dua, tsis tsawg tshaj vim qee cov neeg muaj kev ua xua rau npib tsib xee. Dua li ntawm qhov no, Askiv tau pib siv nyiaj npib minting hauv npib tsib xee dua hauv 2012, dhau qhov kev tawm tsam ntawm dermatologist.
Nickel yog ib qho ntawm plaub lub ntsiab uas yog ferromagnetic ntawm chav tsev kub. Nickel-muaj cov hlau nplaum Alnico muaj lub zog sib nqus ntawm cov hlau uas muaj cov hlau nplaum ruaj khov thiab lub ntiaj teb tsis tshua muaj hlau nplaum. Nickel cov xwm txheej hauv lub ntiaj teb niaj hnub no yog qhov lom zem ntau rau nws cov alloys ntau yam. Kwv yees li 60% ntawm lub ntiaj teb cov npib tsib xickel ntau lawm yog siv los ua ntau cov kab npib tsib xee (tshwj xeeb tshaj yog stainless hlau). Lwm cov alloys, nrog rau qee cov superalloys tshiab, suav rau yuav luag txhua ntawm lub ntiaj teb ntxiv Nickel siv. Tshuaj siv kev siv tshuaj kom ua rau cov neeg sib xyaw ua ke kom tsawg dua 3 feem pua ​​ntawm cov khoom lag luam npib tsib xee. Raws li qhov sib txuas, Nickel muaj ob peb qhov kev siv tshuaj lom neeg, piv txwv li cov tshuaj tua kab mob. Cov enzymes ntawm qee cov kab mob me thiab cov nroj tsuag siv npib tsib xee ua lub zog, thiaj li npib tsib yog ib qho tseem ceeb rau lawv. [1]


Lub Sijhawm Post: Nov-16-2022