Carbon Composite Crucible

Advantages of carbon composite crucible

The common shapes of it include cylindrical, square, and conical, and its advantages are very significant.

Extremely strong thermal stability

It can withstand temperatures ranging from 1500°C to 2800°C for a long time, which is not prone to cracking. And its thermal shock resistance far exceeds that of traditional graphite crucibles.

Excellent mechanical properties

Its density only one-third to half that of traditional metal crucibles, but it possesses higher bending strength and impact resistance.

Outstanding chemical inertness

Excluding strong oxidizing gases, it doesn’t have chemical reactions with molten metals, molten salts, and most high-temperature media.

Uniform thermal conductivity

It enables more uniform heating of the materials inside the crucible, and then reduces local overheating that causes material deterioration.

Smooth surface and dense structure

With low material adhesion, it is convenient to clean, and it can reduce material loss.

In addition, based on your specific requirements, they will be processed to meet your volume, diameter and wall thickness specifications. You can also choose high-density carbon composite crucibles, reinforced carbon composite crucibles, ultra-thin-walled carbon composite crucibles, or other customized types of carbon composite crucibles.

Uses of carbon composite crucible

In the semiconductor and photovoltaic fields

You can use it for the growth of single-crystal silicon and polycrystalline silicon because of its chemical inertness. It is capable of stably carrying molten silicon materials at temperatures above 2000°C. It prevents the silicon materials from being contaminated by impurities, ensuring the purity and electrical properties of the silicon wafers. So it is a core consumable material for the manufacturing of photovoltaic cells and semiconductor chips.

In the high-temperature metallurgy fields

You can use it for vacuum melting of special alloys such as titanium alloys and high-temperature alloys. Because it has high-temperature resistance and corrosion resistance preventing alloy elements from reacting with the crucible. Its uniform heat conductivity ensures the uniform composition of the alloy and enhances the mechanical properties of the alloy material.

In the advanced ceramics fields

You can use it for sintering of high-performance ceramics such as silicon nitride and silicon carbide. It can provide a stable sintering environment for ceramic bodies under high-temperature reducing atmospheres to prevent the ceramics from oxidizing. Meanwhile, it can withstand the pressure during the sintering process, ensuring the density and dimensional accuracy of the ceramic products.

In the laboratory and research fields

With the characteristic of withstanding extreme environments, it serves as the core container for high-temperature experiments. You can use it for the synthesis of new materials, and for testing the high-temperature physical and chemical properties. It can meet the process requirements of various cutting-edge research, assisting in the development and verification of new high-temperature materials.