Sapphire (Al2O3)
Sapphire (Al2O3) iyi-crystal aluminium oxide eyodwa (Al2O3) enobulukhuni be-Mohs obungu-9, ingenye yezinto ezinzima kakhulu.Lokhu kuqina okwedlulele kwesafire kwenza kube nzima ukupholisha usebenzisa amasu ajwayelekile.Ukuqedwa kwekhwalithi ephezulu ye-optical kusafire akwenzeki ngaso sonke isikhathi.Njengoba i-Sapphire iqinile kakhulu futhi inamandla amahle okusebenza, ihlale isetshenziswa njengefasitela impahla lapho kudingeka ukumelana nokuklwebheka.Iphuzu layo eliphakeme lokuncibilika, ukuqhutshwa kahle kwe-thermal kanye nokwanda okuphansi kokushisa kunikeza ukusebenza okuhle kakhulu ezindaweni zokushisa okuphezulu.I-Sapphire ayisebenzi ngamakhemikhali futhi ayincibiliki emanzini, ama-asidi avamile, nama-alkali emazingeni okushisa afika ku-1,000 °C.Ivamise ukusetshenziswa ezinhlelweni ze-laser ye-IR, i-spectroscopy, kanye nemishini yemvelo eqinile.
Izinto ezibonakalayo
I-Refractive Index
1.755 @ 1.064 µm
Inombolo ye-Abbe (Vd)
Okuvamile: 72.31, Okungajwayelekile: 72.99
I-Thermal Expansion Coefficient (CTE)
8.4 x 10-6 /K
I-Thermal Conductivity
0.04W/m/K
Mohs Ukuqina
9
Ukuminyana
3.98g/cm3
I-Lattice Constant
a=4.75 A;c=12.97A
I-Melting Point
2030 ℃
Izifunda Zokudlulisela Nezicelo
| I-Optimum Transmission Range | Izicelo Ezikahle |
| 0.18 - 4.5 μm | Isetshenziswa ngokujwayelekile ezinhlelweni ze-IR laser, i-spectroscopy kanye nemishini yemvelo eqinile |
Igrafu
Igrafu engakwesokudla ijika lokudlulisela elingu-10 mm ubukhulu, i-substrate yesafire engagcotshiwe
Amathiphu: I-Sapphire i-birefringent kancane, amafasitela e-IR enhloso ejwayelekile ngokuvamile asikwa ngendlela engahleliwe ukusuka kukristalu, nokho umumo ukhethwa wezinhlelo zokusebenza ezithile lapho i-birefringence kuyinkinga.Ngokuvamile lokhu kuhambisana ne-optic axis kuma-degree angu-90 ukuya endizeni engaphezulu futhi kwaziwa ngokuthi "zero degree".Isafire ye-synthetic optical ayinawo umbala.
Ukuze uthole imininingwane eningilizayo eningiliziwe, sicela ubuke ikhathalogi yethu yokubona ukuze ubone ukukhetha kwethu okuphelele kwe-optics eyenziwe ngesafire.
