Flexural Strength: ZnSe’s flexural strength is lower than the 20,000 psi criterion but can be enhanced with coatings.

Knoop Hardness: At ~120 kg/mm², ZnSe is softer compared to other materials like sapphire.

Optical Transmission: ZnSe offers excellent transmission in the MWIR range, making it ideal for thermal imaging.

Thermal Properties: ZnSe has good thermal conductivity and a moderate thermal expansion coefficient, making it stable under varying temperatures.

Applications: IR optics, thermal imaging, missile domes, targeting systems, night vision, aerospace optics, etc.