Research Article

Enhancing the Quality of the Characteristic Transmittance Curve in the Infrared Region of Range 2.5–7 µm of the Optical Magnesium Fluoride (MgF2) Ceramic Using the Hot-Pressing Technique in a Vacuum Environment

Figure 2

The diagram of the hot-pressing technique in a vacuum environment. 1, vacuum chamber; 2, heating furnace; 3, pestle; 4, shell mold; 5, pressing material; 6, mortar; 7, pedestal; 8, pressing table; 9, thermocouple.