Quartz Crucibles
High-purity Quartz Crucibles are designed for use in high-temperature laboratory and industrial applications. They offer excellent thermal stability, chemical resistance, and low thermal expansion, making them ideal for melting, calcination, and material analysis processes. Suitable for use in furnaces and cleanroom environments.
FAQs:
1. What is a quartz crucible?
A quartz crucible is a high-purity container made from fused quartz used to hold materials at extremely high temperatures during laboratory or industrial processes.
2. What are quartz crucibles used for?
Quartz crucibles are commonly used for melting, casting, and heating materials in laboratories, semiconductor manufacturing, and metallurgical applications.
3. Why choose quartz crucibles over ceramic or graphite crucibles?
Quartz crucibles offer excellent thermal shock resistance, high melting point (~1700°C), and chemical inertness, making them ideal for high-temperature and contamination-free applications.
4. Can quartz crucibles withstand sudden temperature changes?
Yes. Quartz crucibles have excellent thermal shock resistance and can endure rapid heating and cooling cycles without cracking.
5. Are quartz crucibles reusable?
Yes, they can be reused multiple times if handled and cleaned properly. However, repeated exposure to very high temperatures may eventually cause microcracks or devitrification.
6. How should quartz crucibles be cleaned?
Clean with distilled water and mild detergents. Avoid using strong acids or mechanical abrasives that may damage the surface.
7. What sizes are available for quartz crucibles?
They come in various sizes and shapes-standard laboratory sizes range from small (215 mL) to large (2000 mL) capacity crucibles, depending on application needs.
8. Can quartz crucibles be used for metal melting?
Yes, they are suitable for melting high-purity metals, especially when contamination-free environments are required.
9. Are quartz crucibles compatible with induction furnaces?
Yes, quartz crucibles can be used in induction heating setups when properly supported and when temperature limits are observed.
10. What precautions should be taken while handling quartz crucibles?
Handle with care using clean gloves to prevent contamination. Avoid sudden mechanical shocks or contact with hard surfaces.