Magnesium Oxide (MgO) - Crystran Ltd

Magnesium Oxide (MgO)

Magnesium Oxide (MgO)

APPLICATIONS: Magnesium Oxide can be used for high temperature windows and substrates. HTSC substrates.

µm 0.171 0.200 0.310 0.50 2.00 5.00 8.07

Transmission Range Refractive Index Reflection Loss Absorption Coefficient Reststrahlen Peak dn/dT dn/dµ = 0

0.3 to 6µm 1.7085 at 2µm (1) 12.8% at 2µm (2 surfaces) 0.05 cm-1 at 5.5µm n/a +19 x 10-6 /°C n/a

Density Melting Point Thermal Conductivity Thermal Expansion Hardness Specific Heat Capacity Dielectric Constant Youngs Modulus (E) Shear Modulus (G) Bulk Modulus (K) Elastic Coefficients Apparent Elastic Limit Poisson Ratio

3.58 g/cc 2800 °C 42 W m-1 K-1 at 273K 10.8 x 10-6 /°C at 273K Knoop 692 with 600g indenter 877 J Kg-1 K-1 9.65 at 1 MHz 249 GPa 155 GPa 155 GPa C11=294; C12=93; C44=155 138 MPa (20,000 psi) 0.18

Solubility Molecular Weight Class/Structure

0.00062g / 100g water 40.32 Cubic FCC, NaCl, Fm3m, (100) cleavage

No 2.319 1.986 1.795 1.754 1.7085 1.6373 1.475

µm 0.180 0.230 0.382 0.644 3.00 6.02 9.09

No 2.138 1.892 1.7668 1.734 1.6915 1.5957 1.389

µm 0.191 0.276 0.436 1.00 4.00 7.04 10.64

No 2.039 1.824 1.75471 1.7229 1.6679 1.543 1.209

Magnesium Oxide - MgO

10mm

2mm

%T

Wavelength µm

Magnesium Oxide is grown in relatively small sizes, mainly in Japan and China.

Magnesium Oxide - MgO

(1) Handbook of Optical constants of Solids II ISBN 0-12-544422-2 %T

10mm

2mm

Wavelength nm

Materials Data from Crystran Ltd . Poole . UK

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