Gawo la MgF2
Kufotokozera
MgF2 imagwiritsidwa ntchito ngati mandala, prism ndi zenera la kutalika kwa kutalika kwa 110nm mpaka 7.5μm.Ndizinthu zoyenera kwambiri ngati zenera la ArF Excimer Laser, chifukwa chakufalikira kwake kwa 193nm.Imagwiranso ntchito ngati polarizing optical kudera la ultraviolet.
Katundu
| Kachulukidwe (g/cm3） | 3.18 |
| Malo osungunuka (℃) | 1255 |
| Thermal Conductivity | 0.3 Wm-1K-1 pa 300K |
| Kuwonjezedwa kwa Matenthedwe | 13.7 x 10-6 / ℃ yofanana ndi c-axis 8.9 x 10-6 / ℃ perpendicular c-axis |
| Knoop Kuuma | 415 ndi 100g indenter (kg/mm2) |
| Kuthekera Kwake Kutentha | 1003 J/(kg.k) |
| Dielectric Constant | 1.87 pa 1MHz yofanana c-axis 1.45 pa 1MHz perpendicular c-axis |
| Youngs Modulus (E) | 138.5 GPA |
| Shear Modulus (G) | 54.66 GPA |
| Kuchuluka kwa Modulus (K) | 101.32 GPA |
| Elastic Coefficient | C11=164;C12=53;C44=33.7 C13=63;C66=96 |
| Limit Elastic Limit | 49.6 MPa (7200 psi) |
| Poisson Ration | 0.276 |
Tanthauzo la Gawo la MgF2
MgF2 gawo lapansi limatanthawuza gawo lapansi lopangidwa ndi magnesium fluoride (MgF2) crystal material.MgF2 ndi mankhwala opangidwa ndi magnesium (Mg) ndi fluorine (F).
Magawo a MgF2 ali ndi zinthu zingapo zodziwika bwino zomwe zimawapangitsa kukhala otchuka m'njira zosiyanasiyana, makamaka pankhani ya optics ndi kuyika filimu woonda:
1. Kuwonekera kwakukulu: MgF2 imakhala yowonekera bwino kwambiri mu ultraviolet (UV), yowoneka ndi infuraredi (IR) zigawo za electromagnetic spectrum.Ili ndi kufalikira kwakukulu kuchokera ku ultraviolet pafupifupi 115 nm kupita ku infrared pafupifupi 7,500 nm.
2. Low index of refraction: MgF2 ili ndi index yotsika kwambiri ya refraction, yomwe imapangitsa kuti ikhale yabwino kwa zokutira za AR ndi ma optics, chifukwa imachepetsa kuwunikira kosafunika ndikuwongolera kufalikira kwa kuwala.
3. Kutsika pang'ono: MgF2 imasonyeza kuchepa kwa ultraviolet ndi madera owoneka bwino.Katunduyu amapangitsa kuti ikhale yothandiza pamapulogalamu omwe amafunikira kuwala kwambiri, monga magalasi, ma prisms, ndi mazenera a ultraviolet kapena matanda owoneka.
4. Kukhazikika kwa mankhwala: MgF2 imakhala yokhazikika pamakina, imagonjetsedwa ndi mankhwala osiyanasiyana, ndipo imasunga mawonekedwe ake a kuwala ndi thupi pansi pa zochitika zosiyanasiyana zachilengedwe.
5. Kukhazikika kwa kutentha: MgF2 imakhala ndi malo osungunuka kwambiri ndipo imatha kupirira kutentha kwakukulu kogwira ntchito popanda kuwonongeka kwakukulu.
Magawo a MgF2 amagwiritsidwa ntchito kwambiri poyala zokutira, njira zowonda zamafilimu, ndi mawindo owoneka bwino kapena magalasi pazida ndi machitidwe osiyanasiyana.Atha kukhalanso ngati zigawo zotchingira kapena ma tempulo akukula kwa makanema ena owonda, monga zida za semiconductor kapena zokutira zachitsulo.
Magawo awa amapangidwa pogwiritsa ntchito njira monga kuyika kwa nthunzi kapena njira zonyamulira nthunzi, pomwe zinthu za MgF2 zimayikidwa pagawo loyenera kapena kukulitsidwa ngati kristalo imodzi.Kutengera ndi zofunikira pakugwiritsa ntchito, magawo ang'onoang'ono amatha kukhala ngati zowotcha, mbale, kapena mawonekedwe achikhalidwe.
