Silver Chloride AgCl Optics
Silver Chloride (AgCl) is a useful material for IR applications extending to 25 microns and where sensitivity to moisture is a concern. This soft crystal deforms under heat and pressure. It is forged in polished dies to create IR windows and lenses. Silver Chloride (AgCl) is malleable and milky-white in color. It darkens under UV radiation, but mild darkening does not affect the IR performance. Silver Chloride (AgCl) is corrosive to metals and interface should be avoided.
Contact REFLEX Analytical to discuss fabrication according to your specifications.
Material Characteristics
Transmission Range 0.4 to 25 microns Refractive Index 1.98 at 10 microns Reflection Loss 19.5% at 10 microns (2 surfaces) Absorption Coefficient n/a Reststrahlen Peak 81.5 microns dn/dT -61 x 10-6 /°C dn/du = 0 4.5 microns Density 5.59 g/cc Melting Point 457 °C Thermal Conductivity 1.15 W m-1 K-1 at 278 K Thermal Expansion 31 x 10-6 /°C at 302 K Hardness Knoop 9.5 with 200g indenter Specific Heat Capacity 355 J Kg-1 K-1 Dielectric Constant 12.3 at 1MHz Youngs Modulus (E) 19.98 GPa Shear Modulus (G) 7.099 GPa Bulk Modulus (K) 44.04 GPa Elastic Coefficients C11=60.1 C12 -36.2 C44=6.25 Apparent Elastic Limit 26.2MPa (3800 psi) Poisson Ratio 0.4 Solubility 52 x 10-6 g/100g water at 50°C Molecular Weight 143.34 Class/Structure Cubic FCC, NaCl, Fm3m, No cleavage, cold flows
Contact REFLEX Analytical to discuss fabrication according to your specifications.
Material Characteristics
Transmission Range 0.4 to 25 microns Refractive Index 1.98 at 10 microns Reflection Loss 19.5% at 10 microns (2 surfaces) Absorption Coefficient n/a Reststrahlen Peak 81.5 microns dn/dT -61 x 10-6 /°C dn/du = 0 4.5 microns Density 5.59 g/cc Melting Point 457 °C Thermal Conductivity 1.15 W m-1 K-1 at 278 K Thermal Expansion 31 x 10-6 /°C at 302 K Hardness Knoop 9.5 with 200g indenter Specific Heat Capacity 355 J Kg-1 K-1 Dielectric Constant 12.3 at 1MHz Youngs Modulus (E) 19.98 GPa Shear Modulus (G) 7.099 GPa Bulk Modulus (K) 44.04 GPa Elastic Coefficients C11=60.1 C12 -36.2 C44=6.25 Apparent Elastic Limit 26.2MPa (3800 psi) Poisson Ratio 0.4 Solubility 52 x 10-6 g/100g water at 50°C Molecular Weight 143.34 Class/Structure Cubic FCC, NaCl, Fm3m, No cleavage, cold flows
