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Alumina (Al2O3) Infrared Crystal

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:
Custom-made
Quantity:
10pc, 100pc, 1000pc
Supplier:
ALB Materials Inc
Synonyms:

Al2O3 Wafers, Al2O3 Substrate, Al2O3 Slice, Alumina Wafers, Alumina Substrate, Alumina Slice

Price($, USD):

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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 Å                (1123) - n plane: 1.147 ů

(0001) - c plane:    2.165 Å                (1011) - s plane:   1.961 Å

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


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