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Optische Eigenschaften
Transmissionsbereich in µm (Minimum 10%)
0,48‐20
Transmissionsbereich in µm (Minimum 50%)
0,5‐20
Brechungsindex @633nm
2,591

(2,403 @10,6µm)

Reflexionsverluste in % an 1 Oberfläche
17,05 @10µm
Reflexionsverluste in % an 2 Oberflächen
29,1 @10,6µm
dN/dT in 1/K
61 · 10-6 @10,6µm @298K
Physikalische Eigenschaften
Dichte in g/cm3
5,27
Schmelzpunkt in °C
Subl. >500°C
Spezifische Wärmekapazität in J/(kg · K)
339
Thermische Leitfähigkeit in W/(m · K)
18
Thermische Ausdehnung in 1/K
7,1 · 10-6 @271K
Dielektische Konstante
9,12
Wasserlöslichkeit in g/100g
unlöslich
Mohs-Härte
4
Knoop-Härte in kg/mm²
110
Materialtyp
polykristallin, synthetisch
Kristalltyp
kubisch, Zinkblendenstruktur
Kristallstruktur
F43m
Gitterkonstante in Å
a = 5,67
Elastizitätskonstanten in GPa
C11 = 86,4

C12 = 51,5

C44 = 40,2

Elastizitätsmodul (E) in GPa
70,3
Schubmodul (G) in GPa
28,9
Kompressionsmodul (K) in GPa
63,1
Biegefestigkeit in MPa
55
Dehnungsgrenze in MPa
55,1
Poissonzahl
0,3
Spektrale Eigenschaften
Probendicke: 2 mm
Optical Properties
Transmission range in µm @10% min. 0.48 - 20
Transmission range in µm @50% min. 0.5 - 20
Refractive index @ 633nm 2.5906
(2.4028 @10.6µm)
Reflection losses in % at 1 surface 17.05 @ 10µm
Reflection losses in % at 2 surfaces 29.1 @ 10.6µm
dn/dT in 1/K 61 · 10-6
Physical Properties
Density in g/cm³ 5.27
Melting point in °C Subl. @ >500
Specific heat capacity in J/(kg · K) 339
Thermal Conductivity in W/(m · K) 18
Thermal Expansion in 1/K 7.1 · 10-6 @ 271K
Dielectric constant 9.12
Solubility in water in g/100g unsoluble
Mohs hardness 4
Knoop hardness in kg/mm² 110
Material type Polycrystalline, synthetic
Crystal type cubic
Crystal structure F43m
Lattice constant in Å a = 5.67
Elastic coeficients in GPa C11 = 86.4
C12 = 51.5
C44 = 40.2
Young's Modulus (E) in GPa 70.3
Shear Modulus (G) in GPa 28.9
Bulk Modulus (K) in GPa 63.1
Rupture Modulus in MPa 55
Apparent elastic limit in MPa 55.1
Poisson ratio 0.3
Spectral Properties