Tube furnaces typically use work tubes made from various materials to meet specific application needs.
The choice of material depends on the requirements of the application, including the maximum operating temperature and chemical resistance needed.
5 Key Options Explained
1. Ceramic Materials
Ceramic materials like mullite and recrystallized alumina (RCA) are chosen for their high temperature resistance and chemical stability.
These ceramics are suitable for applications involving high temperatures and where resistance to chemical reactions is crucial.
RCA, in particular, is known for its excellent thermal shock resistance and high purity, making it ideal for sensitive processes like semiconductor manufacturing.
2. Quartz Glass
Quartz tubes are cost-effective and transparent, which can be beneficial for visual monitoring of processes.
They are suitable for use up to 1200°C.
However, they may not withstand as many heat-cool cycles as other materials, which is a consideration for applications requiring frequent temperature changes.
3. Metals
Metals such as stainless steel and Inconel offer good thermal conductivity and mechanical strength.
These metals are suitable for various high-temperature applications.
Inconel, in particular, is known for its excellent resistance to oxidation and corrosion at high temperatures, which is beneficial in environments where these factors are critical.
4. Platinum
In the preparation of superconductors like Yttrium barium copper oxide (YBa2Cu3O7), materials like platinum are used due to their stability at high temperatures and resistance to the chemical reactions involved.
5. Alumina
Similarly, in chemical vapor transport processes, the choice of tube material is critical to withstand the specific conditions and prevent contamination of the materials being processed.
Continue Exploring, Consult Our Experts
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