What is the difference between quartz and fused silica?


If you need to use high-performance materials in your w […]

If you need to use high-performance materials in your work, then quartz, fused silica and fused silica will be a good choice. Quartz, fused silica, and fused silica are all part of a very high-purity series of materials that have high working and melting temperatures, excellent optical properties, and low expansion coefficients.

Although their working conditions are roughly the same, the basic structure and manufacturing methods of quartz and fused silica are somewhat different. Both are highly specialized, but their special performances are different.

Transparent quartz sheathed tube

Fused silica
Fused silica is a fully synthetic material, technically the purest glass. It has the highest temperature characteristics of all glasses, and usually starts with pure silicon gas. Due to the manufacturing method of fused silica, it has superior ultraviolet performance than natural quartz, and is very suitable for applications such as ultraviolet transmission optics.

Main features
It has obvious transparency to deep ultraviolet
Made of silicon gas or silicon sand (non-crystalline)
Amorphous state
Cross-linked 3D structure
Keep some residual impurities in the water vapor during processing (affects infrared transparency)

Quartz is a versatile natural substance with good electrical, optical and thermal properties and corrosion resistance. In production, quartz glass or fused silica is made by melting and purifying particles of natural materials.

Main features
Made of natural crystal quartz or silica
Amorphous state
Low hydroxyl content
Amorphous products
Retain some residual impurities in raw materials (affects UV transparency)