Sapphire Qhov rai Rau Qhov Kub Kub Kub
Thaum lub sij hawm siv lub tshuab cua sov thiab lub tshuab nqus tsev vacuum, lub qhov rais saib yuav raug rau siab heev thiab kub ua hauj lwm.Txhawm rau kom muaj kev nyab xeeb ntawm cov neeg sim, lub qhov rais saib yuav tsum tau ruaj khov, txhim khu kev qha, kub-resistant, kuj muaj cov khoom siv kho qhov muag zoo.Synthetic sapphire yog cov khoom siv zoo tshaj plaws raws li lub qhov rais saib.
Sapphire muaj qhov zoo ntawm nws lub zog siab: nws tuaj yeem tiv taus lub siab ua ntej tawg.Sapphire muaj lub zog siab ntawm kwv yees li 2 GPa.Hauv qhov sib piv, cov hlau muaj lub zog siab ntawm 250 MPa (yuav luag 8 npaug tsawg dua sapphire) thiab gorilla iav (™) muaj lub zog siab ntawm 900 MPa (tsawg dua ib nrab ntawm sapphire).Sapphire, lub sijhawm no, muaj cov tshuaj lom neeg zoo heev thiab tsis muaj zog rau yuav luag txhua yam tshuaj, ua rau nws tsim nyog rau cov khoom siv corrosive tam sim no.Nws muaj cov thermal conductivity tsawg heev, 25 W m'(-1) K^(-1), thiab qis thermal expansion coefficient ntawm 5.8 × 10^6 / C: tsis muaj deformation lossis expansion ntawm thermal tej yam kev mob ntawm siab lossis siab. kub.Txawm koj tsim, koj tuaj yeem paub tseeb tias nws muaj qhov loj thiab ntev ntawm 100 meters hauv qab hiav txwv lossis 40K hauv orbit.
Peb tau siv cov yam ntxwv ntawm lub zog thiab khawb-resistant qhov rais hauv cov neeg siv khoom siv, suav nrog lub tshuab nqus tsev thiab lub qhov cub kub.
Sapphire qhov rais rau qhov cub muaj kev sib kis tau zoo nyob rau hauv 300nm txog 5500nm ntau yam (them ultraviolet, pom thiab infrared thaj chaw) thiab peaks ntawm kev sib kis ntawm yuav luag 90% ntawm 300 nm txog 500 nm wavelengths.Sapphire yog ob qho khoom siv refractive, yog li ntau ntawm nws cov khoom kho qhov muag yuav nyob ntawm qhov kev coj ua siv lead ua.Ntawm nws cov axis ib txwm, nws qhov ntsuas qhov taw qhia qhov ntsuas ntawm 1.796 ntawm 350nm rau 1.761 ntawm 750nm, thiab txawm tias qhov kub hloov pauv loj, nws hloov me ntsis.Vim nws lub teeb kis tau zoo thiab dav wavelength ntau, peb feem ntau siv lub qhov rais sapphire nyob rau hauv infrared lens tsim nyob rau hauv furnaces thaum ntau hom iav tsis haum.
Ntawm no yog ib qho Kev Xam Xaj ntawm cov thickness rau sapphire viewport qhov rais:
Th = √(1.1 x P x r² x SF/MR)
qhov twg:
Thickness ntawm qhov rais (mm)
P = Tsim siv siab (PSI),
r = Unsupported radius (mm),
SF = Kev Nyab Xeeb (4 txog 6) (qhia ntau yam, siv tau lwm yam),
MR = Modulus of rupture (PSI).Sapphire li 65000PSI
Piv txwv li, Sapphire qhov rais nrog txoj kab uas hla 100 hli thiab lub vojvoog tsis txhawb nqa 45 hli siv nyob rau hauv ib puag ncig nrog Siab sib txawv ntawm 5 cua yuav tsum muaj tuab ntawm ~ 3.5 hli (kev nyab xeeb 5).
