Resource
MgO (Magnesium Oxide)
Physical and optical properties
Transmission Range : |
0.3 to 6 μm |
Refractive Index : |
1.7085 at 2 μm (1) |
Reflection Loss : |
12.8% at 2 μm (2 surfaces) |
Absorption Coefficient : |
0.05 cm-1 at 5.5 μm |
Reststrahlen Peak : |
n/a |
dn/dT : |
+19 x 10-6 /°C |
dn/dμ = 0 : |
n/a |
Density : |
3.58 g/cc |
Melting Point : |
2800 °C |
Thermal Conductivity : |
42 W m-1 K-1 at 273K |
Thermal Expansion : |
10.8 x 10-6 /°C at 273K |
Hardness : |
Knoop 692 with 600g indenter |
Specific Heat Capacity : |
877 J Kg-1 K-1 |
Dielectric Constant : |
9.65 at 1 MHz |
Youngs Modulus (E) : |
249 GPa |
Shear Modulus (G) : |
155 GPa |
Bulk Modulus (K) : |
155 GPa |
Elastic Coefficients : |
C11=294; C12=93; C44=155 |
Apparent Elastic Limit : |
138 MPA (20,000 psi) |
Poisson Ratio : |
0.18 |
Solubility : |
0.00062g/100g Water |
Molecular Weight : |
40.32 |
Class/Structure : |
Cubic FCC, NaCl, Fm3m, (100) cleavage |
Refractive Index
No = Ordinary Ray
µm |
No |
µm |
No |
µm |
No |
0.171 |
2.319 |
0.180 |
2.138 |
0.191 |
2.039 |
0.200 |
1.986 |
0.230 |
1.892 |
0.276 |
1.824 |
0.310 |
1.795 |
0.382 |
1.7668 |
0.436 |
1.75471 |
0.50 |
1.754 |
0.644 |
1.734 |
1.00 |
1.7229 |
2.00 |
1.7085 |
3.00 |
1.6915 |
4.00 |
1.6679 |
5.00 |
1.6373 |
6.02 |
1.5957 |
7.04 |
1.543 |
8.07 |
1.475 |
9.09 |
1.389 |
10.64 |
1.209 |
Product Notes