Study on the blackening phenomenon of leaded glass during microgroove molding using nickel phosphorous mold

Fabrication of aspheric diffractive lens with high precision by precision glass molding

“…The high nickel phosphide (Ni-P) has excellent turning properties and anti-adhesive properties with glass, the surface of Ni-P material can be machined with surface roughness Ra≤1 nm by SPDT [9,10] . In the previous studies, zhang et al [1] have verified the turning performance of C71500 CuNi alloy and Ni-P material, however, Ni-P material is mainly used for injection molding of the resin optical elements or molding of infrared glass, and the molding temperature is generally below 400°C.…”