Green silicon carbide powder for polishing optical glass

Green silicon carbide powder for polishing optical glass

Green silicon carbide powder can be used for polishing optical glass. Its characteristics are as follows:

Applicability

Green silicon carbide has a Mohs hardness of 9.4 and offers strong cutting performance, making it suitable for precision polishing of hard and brittle materials such as optical glass. Its uniform particle size distribution and high thermal conductivity reduce temperature rise during polishing, minimizing thermal damage.

Polishing Results

Green silicon carbide breaks down its surface passivation layer during polishing, exposing a fresh cutting edge and maintaining continuous polishing performance. Its uniform particle size distribution prevents localized overloading and under-processing, ensuring surface accuracy.

Process Advantages

High-Temperature Stability: With a melting point of 2700°C and a low coefficient of thermal expansion, it remains stable at high temperatures.

Corrosion Resistance: Resists chemical corrosion from acids, alkalis, salts, and other chemicals, making it suitable for complex processing environments.

Environmental Performance: Non-toxic and non-polluting, it meets environmental requirements.

Notes: Select the appropriate particle size based on the hardness and surface requirements of the optical glass (e.g., D50 = 8.0 ± 0.6 μm). ‌

It is recommended to use a wool wheel or other tools when polishing to improve efficiency and reduce surface damage. ‌