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- Item Number:ALB-CR-017
- Product Name:Alumina (Al2O3) Infrared Crystal
- CAS Number:[1344-28-1]
- Formula:Al2O3
- Shape:Wafer (slice / substrate), boule and crystal form
- Size:
- Quantity:10pc, 100pc, 1000pc
- Supplier:
ALB Materials Inc
- Synonyms:
Al2O3 Wafers, Al2O3 Substrate, Al2O3 Slice, Alumina Wafers, Alumina Substrate, Alumina Slice
Price($, USD):
($, USD) Inquiry- Related Products:Aluminum Products,Oxygen Products
Alumina (Al2O3) Crystal | Infrared Crystal Material
| Physical Properties of Sapphire | |
| Crystal Structure | Hexagonal. a =4.758 Å c= 12.992 Å |
| Crystallographic D spacing |
(1120 ) - a plane: 2.379 Å (1102) - r plane: 1.740 Å
(1010) - m plane: 1.375 Š(1123) - n plane: 1.147 ů (0001) - c plane: 2.165 Š(1011) - s plane: 1.961 Š|
| Crystal Purity | > 99.99% |
| Melt Point | 2040 oC |
| Density | 3.98 g/cm3 |
| Hardness | 9 ( mohs) |
| Thermal Expansion | 7.5 (x10-6/ oC) |
| Specific Heat | 0.10 ( cal / oC) |
| Thermal Conductivity, | 46.06 @ 0 oC 25.12 @ 100 oC, 12.56 @ 400 oC ( W/(m.K) ) |
| Dielectric Constant | ~ 9.4 @300K at A axis ~ 11.58@ 300K at C axis |
| Loss Tangent at 10 GHz | < 2x10-5 at A axis , <5 x10-5 at C axis |
|
Standard Products |
|
|
As - grown boules
<0001> ori.± 0.5o |
3"dia x 50 ~ 70 mm length
2"dia x 50 ~ 70 mm length 30 mm dia x 150 mm length |
|
As-cut blanks
<0001> ori.± 0.5o |
2"dia x 0.7 mm thickness
1"dia x 0.7 mm thickness |
|
Epi -polished substrates
C, R, A plane: ori.± 0.5o 1 or 2 sides polished Ra< 10 Å |
3"dia. x 0.5 mm
2"dia. x 0.33 mm, 2"dia x 0.5 mm 1"dia x 0.5 mm 0.5"x 0.5"x 0.5 mm 10x10x0.5 mm |
