Vim yog qhov nyuaj degradation, cov yas ua cov pa phem loj.Yog tias xav tau cov yas los ua kom muaj kev puas tsuaj ntuj hauv ntiaj teb, xav tau nyob ib ncig ntawm 200 ~ 1000 xyoo.Tab sis lwm cov ntaub ntawv yog tenacious ntau dua li yas, thiab nyob ntev dua, nws yog iav.
Nyob ib ncig ntawm 4000 xyoo dhau los, tib neeg tuaj yeem ua iav.Thiab nyob ib ncig ntawm 3000 xyoo dhau los, cov neeg Iyiv thaum ub tau txawj ntse hauv iav tshuab tshuab.Tam sim no ntau cov khoom iav hauv ntau lub sijhawm tau pom los ntawm archaeologist, thiab tau khaws cia zoo, qhov no qhia tau tias puas xyoo tsis muaj kev cuam tshuam rau iav.Yog ntev dua, qhov tshwm sim yog dab tsi?
Cov khoom xyaw tseem ceeb ntawm iav yog silica thiab lwm yam oxides, nws yog non-crystal khoom nrog cov qauv tsis zoo.
Feem ntau, cov txheej txheem molecular ntawm cov kua thiab cov pa tsis zoo, thiab rau cov khoom, nws yog qhov zoo.iav yog khoom, tab sis lub molecular kev npaj zoo li kua thiab roj.Vim li cas?Qhov tseeb, lub atomic kev npaj ntawm iav yog disorderly, tab sis yog saib lub atom ib tug los ntawm ib tug, nws yog ib tug silicon atom txuas nrog plaub oxygen atoms.Qhov kev npaj tshwj xeeb no hu ua "short range order".Qhov no yog vim li cas iav yog tawv tab sis tawg.
Qhov kev npaj tshwj xeeb no ua rau iav nrog super hardness, tib lub sijhawm, cov khoom siv tshuaj ntawm iav yog qhov ruaj khov, ze li tsis muaj tshuaj tiv thaiv ntawm iav thiab lwm yam ntaub ntawv.Yog li nws yog ib qho nyuaj rau corroded rau iav nyob rau hauv lub ntuj ntiaj teb no.
Lub khob loj loj yuav tawg ua me me hauv qab kev tawm tsam, nrog rau kev tawm tsam ntxiv, cov khoom me me yuav me me, txawm tias me dua cov xuab zeb.Tab sis nws tseem yog iav, nws lub iav innate cim yuav tsis hloov.
Yog li iav tuaj yeem nyob hauv lub ntiaj teb ntuj tsim tau ntau tshaj li ntau txhiab xyoo.
Post lub sij hawm: Feb-15-2022