Zoo ib yam li graphene, MXenes yog cov khoom siv hlau carbide ob sab uas muaj cov txheej txheem ntawm titanium, aluminium, thiab carbon atoms, txhua tus muaj nws tus kheej ruaj khov thiab tuaj yeem txav tau yooj yim ntawm cov khaubncaws sab nraud povtseg. Thaum Lub Peb Hlis 2021, Missouri State University of Science thiab Technology thiab Argonne National Laboratory tau tshawb fawb txog MXenes cov ntaub ntawv thiab pom tias cov khoom siv los tiv thaiv kev hnav thiab lubricating ntawm cov khoom no nyob rau hauv qhov chaw huab cua zoo dua li cov roj nplua nyeem ib txwm muaj, thiab tuaj yeem siv los ua ""Super Lubricant" kom txo tau hnav rau yav tom ntej probes zoo li Perseverance.
Cov kws tshawb fawb simulated qhov chaw ib puag ncig, thiab kev ntsuam xyuas kev sib txhuam ntawm cov khoom tau pom tias kev sib txhuam coefficient ntawm MXene cuam tshuam ntawm lub pob steel thiab silica-coated disc tsim nyob rau hauv "superlubricated xeev" yog tsawg li 0.0067 tsawg li 0.0017. Cov txiaj ntsig zoo dua tau txais thaum graphene ntxiv rau MXene. Qhov sib ntxiv ntawm graphene tuaj yeem txo kev sib txhuam los ntawm 37.3% thiab txo qhov hnav los ntawm qhov zoo ntawm 2 yam tsis muaj kev cuam tshuam rau MXene superlubrication zog. MXenes cov ntaub ntawv tau txais txiaj ntsig zoo rau qhov chaw kub thiab txias, qhib qhov rooj tshiab rau yav tom ntej siv cov roj nplua nyeem hauv qhov chaw huab cua.
Txoj kev loj hlob ntawm thawj 2nm txheej txheem nti hauv Tebchaws Meskas tau tshaj tawm
Ib qho kev sib tw tsis tu ncua hauv kev lag luam semiconductor yog ib txhij tsim cov khoom me me, sai dua, muaj zog dua thiab muaj zog dua microchips. Feem ntau cov khoos phis tawj uas siv hluav taws xob niaj hnub no siv 10- lossis 7-nanometer txheej txheem thev naus laus zis, nrog qee cov tuam txhab tsim 5-nanometer chips.
Thaum lub Tsib Hlis 2021, IBM Corporation ntawm Tebchaws Meskas tau tshaj tawm txoj kev loj hlob ntawm lub ntiaj teb thawj 2nm txheej txheem nti. Lub nti transistor txais yuav peb txheej nanometer rooj vag nyob ib ncig ntawm (GAA) tsim, siv cov thev naus laus zis siab tshaj plaws ultraviolet lithography los txiav txim siab qhov tsawg kawg nkaus, lub rooj vag transistor ntev yog 12 nanometers, kev sib xyaw ntom ntom yuav ncav cuag 333 lab ib square millimeter, thiab 50 billion tuaj yeem ua ke.
Cov transistors tau muab tso rau hauv ib cheeb tsam qhov loj ntawm tus ntiv tes. Piv nrog rau 7nm nti, 2nm txheej txheem nti yuav tsum txhim kho kev ua tau zoo los ntawm 45%, txo lub zog siv los ntawm 75%, thiab tuaj yeem txuas lub roj teeb lub neej ntawm cov xov tooj ntawm tes los ntawm plaub zaug, thiab lub xov tooj ntawm tes tuaj yeem siv tsis tu ncua rau plaub hnub. nrog ib qho nqi xwb.
Tsis tas li ntawd, cov txheej txheem tshiab kuj tseem tuaj yeem txhim kho kev ua tau zoo ntawm cov khoos phis tawj khoos phis tawj, suav nrog kev txhim kho daim ntawv thov ua lub zog ntawm cov khoos phis tawj phau ntawv thiab kev siv Internet ceev. Hauv kev tsav tsheb tus kheej, 2nm txheej txheem chips tuaj yeem txhim kho cov khoom muaj peev xwm tshawb pom thiab txo lub sijhawm teb, uas yuav txhawb nqa kev loj hlob ntawm semiconductor teb thiab txuas ntxiv cov lus dab neeg ntawm Moore Txoj Cai. IBM npaj yuav loj-tsim 2nm txheej txheem chips hauv 2027.
Post lub sij hawm: Aug-01-2022