Sapphire (Al2O3)
Sapphire (Al2O3) ndi crystal aluminium oxide (Al2O3) ndi kuuma kwa Mohs kwa 9, ndi chimodzi mwazinthu zovuta kwambiri. Kuuma kwambiri kwa safiroku kumapangitsa kuti zikhale zovuta kupukuta pogwiritsa ntchito njira zokhazikika. Kutsirizitsa kwapamwamba kwambiri pa safiro sikutheka nthawi zonse. Popeza safiro ndi yolimba kwambiri ndipo imakhala ndi mphamvu zamakina abwino, imagwiritsidwa ntchito nthawi zonse ngati mawindo omwe amafunikira kukana. Malo ake osungunuka kwambiri, kutentha kwabwino kwa kutentha ndi kuwonjezereka kwa kutentha kumapereka ntchito yabwino kwambiri m'malo otentha kwambiri. Sapphire ndi mankhwala olowera m'madzi ndipo sasungunuka m'madzi, ma asidi wamba, ndi alkalis potentha mpaka 1,000 °C. Amagwiritsidwa ntchito kwambiri mu makina a IR laser, spectroscopy, ndi zida zolimba zachilengedwe.
Zinthu Zakuthupi
Refractive Index
1.755 @ 1.064 µm
Nambala ya Abbe (Vd)
Wamba: 72.31, Zachilendo: 72.99
Thermal Expansion Coefficient (CTE)
8.4x10-6 /K
Thermal Conductivity
0.04W/m/K
Mohs Kuuma
9
Kuchulukana
3.98g/cm3
Lattice Constant
ndi = 4.75 A; c=12.97A
Melting Point
2030 ℃
Magawo Otumizira & Mapulogalamu
| Mulingo Wabwino Wotumizira | Mapulogalamu abwino |
| 0.18 - 4.5 μm | Nthawi zambiri amagwiritsidwa ntchito mu makina a IR laser, spectroscopy ndi zida zolimba zachilengedwe |
Chithunzi
Grafu yolondola ndi yokhotakhota ya 10 mm yokhuthala, gawo lapansi la safiro losakutidwa
Malangizo: Sapphire imakhala yozungulira pang'ono, mazenera a IR nthawi zambiri amadulidwa mwachisawawa kuchokera ku kristalo, komabe mawonekedwe amasankhidwa kuti agwiritse ntchito pomwe pali vuto. Nthawi zambiri izi zimakhala ndi optic axis pa madigiri 90 kupita kumtunda ndipo zimadziwika kuti "zero degree". Synthetic optical safire ilibe mtundu.
Kuti mudziwe zambiri zatsatanetsatane, chonde onani ma catalog optics athu kuti muwone kusankha kwathu kwathunthu kopangidwa kuchokera ku safiro.
