Is tantalum carbide coating widely used
What is tantalum carbide?
Tantalum carbide is a metallic cubic crystalline powder that forms a binary chemical compound family of tantalum and carbon. They are exceptionally hard, fragile refractory ceramic materials with metallic conductivity. They look like brownish-gray powders and are normally processed by sintering. It belongs to the salt chloride type cubic crystal system. At present, tantalum carbide is likewise utilized as a cemented carbide sintered grain development inhibitor, which significantly inhibits grain growth, with a density of 14.3 g/cm3.
The qualities of tantalum carbide
Molecular weight: 192.956. Light metal cubic crystalline powder, which belongs to salt chloride type cubic crystal system. Insoluble in water, insoluble in inorganic acid, soluble in the mixed acid of hydrofluoric acid and nitric acid, and decomposable. It has strong oxidation resistance and is rapidly melted and broken down by potassium pyrosulfate. High conductivity, the resistance of 30Ω & Omega; at room temperature level, revealing superconductivity.
What is the function of tantalum carbide?
As the most commonly used product in life, carbon has high-temperature resistance, great thermal conductivity, and chemical stability, which makes it play a crucial role in daily life and the advancement of science and technology. Among its critical applications is that in silicon carbide crystal growth, the crucible made of graphite plays an essential role in preparing silicon carbide crystal by physical vapor transmission. Nevertheless, due to the deterioration of basic materials on the crucible wall at high temperature levels, the graphite crucible can not be straight utilized for crystal growth. The covering of tantalum carbide on a graphite surface area can fix this issue well. As a ceramic product, Tantalum carbide can be acquired by straight reacting tantalum-containing substances with carbon at high temperature levels. Its high melting point and high chemical stability enable it to efficiently resist the rust of various chemical compounds at heats. When utilized as a covering on the surface area of a graphite crucible, it can efficiently play a protective role, enhance the crystal quality, increase the reuse rate of the crucible and minimize the production cost.
Nevertheless, due to the brittleness of tantalum carbide ceramic and the difference in thermal growth coefficient in between the covering and the carbon matrix, the bonding force between the layer and the carbon matrix is bad. The finishing will appear with apparent cracks or perhaps fall off from the matrix during preparation or usage, which eventually impacts the quality of the product. Therefore, discovering an approach for preparing tantalum carbide finishing with high adhesion is of great significance.
The price of tantalum carbide
The market rate of tantalum carbide is affected by various aspects. Presently, its market rate remains in the process of dynamic change. If you need it, please call us at any time.
Tantalum carbide powder provider
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