Is tantalum carbide coating widely used?

Tantalum carbonide is an metallic cubic crystalline powder which forms a binary compound family with tantalum or carbon. They are extremely tough, fragile, and refractory ceramic material with metallic conductivity. They are typically sintered to make brownish-gray, powdery forms. This belongs to the sodium-chloride cubic crystal type. Presently, tantalum carbide is used in cemented carbide sintered as a grain growth inhibitor. This significantly slows down grain growth and has a density at 14.3g/cm3.

Molecular weight: 192.956 It is a light metallic cubic-crystalline powder that belongs to the sodium chloride type cubic cristal system. Insoluble in water; insoluble or inorganic inorganic acid. Soluble in the mixture of hydrofluoric acid (nitric acid) and decomposable. This substance is highly resistant to oxygen and melts quickly when dissolved in potassium pyrosulfate. It has high conductivity. The resistance to 30O at room temperatures is very low, which shows superconductivity.

The most common material used in human life, carbon is high-temperature resistant, thermal conductivity, chemical stability and good heat resistance. These attributes make it a key component of daily life and in the future development and application of science, technology and engineering. A crucible made from graphite has a critical role in preparation of silicon carbide crystals through physical vapor transmission. However, graphite crystal growth cannot be done directly because of corrosion on the crucible’s wall due to high temperatures. Tantalum carbide can be coated on graphite to solve this problem. Tantalum carbide, a ceramic material can be produced by reacting tantalum-containing materials with carbon at high temperature. Due to its high melting points and chemical stability, Tantalum carbide is very resistant to the corrosion of many chemical substances at high temperature. As a coating for graphitecrucibles, it is able to protect, enhance the quality of crystals, reduce production costs, and increase reuse rates.

Due to tantalum carbide’s brittleness, and the differences in the thermal expansion coefficient, between the coating or the carbon matrix, there is a weak bond between the layers. The product will have visible cracks and even slippage from the carbon matrix when it is prepared or used, which can lead to poor quality. High adhesion coatings are therefore essential.

Many factors affect the market value of tantalum-carbide. The market price of tantalum carbide is changing rapidly at the moment. You can contact us anytime if you require it.

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