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Quartz glass plates are an essential component for a number of high-end manufacturing technologies, including TFT-LCDs, OLED displays and advanced IC packaging. Their key characteristics, such as being ultra-high purity (SiO2 content can reach over 99.99%) and exhibiting excellent thermal stability and optical uniformity, make them the ideal supporting material for these sophisticated technological...

In aviation propulsion systems, sapphire, leveraging its dual capabilities of light transmittance and protective functionality, has been explored for applications in high-temperature observation windows and rectification components of high-speed aircraft. Additionally, its superior hardness (Mohs hardness approaching that of natural materials) theoretically enables it to withstand the erosion caused by high-speed airflow and particle...

To summarize, there are several key differences between quartz and  ordinary glass plates. These differences are evident in various aspects, including composition, hardness, light transmittance, heat resistance, and production cost, especially the application values and scopes, which all directly impacts quartz plate pricing.

Sapphire windows are characterized by their high hardness and wear resistance, as well as their high light transmittance, which enables the transmission of a wide spectral range from ultraviolet to mid-infrared. Chemical inertness represents a significant advantage of sapphire windows. Notwithstanding the presence of high temperatures, strong acids, and strong alkalis, it exhibits remarkable chemical...

In summary, quartz glass polishing wafers are the preferred choice for their excellent polishing effect, long service life, good processing stability and versatility. They can improve processing quality and efficiency, reduce costs and are an indispensable tool in the processing of many hard materials.

It is possible that haze or atomization phenomena may be present on the sapphire window surface. The third defect is naturally formed, while the other three are likely to be produced in the early grinding stage, which is also the reason why the sapphire window takes so long to polish.

As a key index for measuring optical quality, optical uniformity directly reflects the consistency of the refractive index within a material. When light passes through quartz glass with different refractive indices, a distortion effect similar to ripples on the surface of water occurs, which can lead to a blurred image or uneven distribution of...