Overview of Hafnium Carbide

Overview of Hafnium Carbide
Hafnium Carbide (HfC), a gray solid with a metallic luster, has the highest melting point in a known single compound, and is a good material for lining high melting point metal melting crucibles; it has a high melting point, high hardness, good high-temperature strength, and corrosion resistance. Good and low thermal conductivity. It can be used as an additive for hard alloys. It is widely used in cutting tools and molds. It is also suitable for rocket nozzle materials. It can be used in the nose cone of rockets. It is often used in the aerospace field. It can also be used in nozzles, high-temperature resistant linings, arc, or electrolysis electrodes; at the same time, it can also be used in nuclear reactor control rods.
The Physical and Chemical Properties of Hafnium Carbide
Gray solid with a metallic luster. The proportion is 12.20. The melting point is about 3890°C. Insoluble in water, soluble in hydrofluoric acid, hot concentrated sulfuric acid, nitric acid, or hot alkaline solution containing 30% H2O2. The room is stable over time. Chlorine is passed over 250℃ to form hafnium tetrachloride, and hafnium dioxide is formed with oxygen over 500℃. 1 mole of hafnium carbide and 4 moles of tantalum carbide can form mixed crystals with a melting point as high as 4215°C. 
Preparation of Hafnium Carbide
It is prepared by reacting hafnium or hafnium tetrachloride with methane at 2100℃ or heating hafnium dioxide and carbon black in a graphite crucible to 1900-2300℃ and passing hydrogen. Or from methane, hydrogen, and hafnium chloride vapor through heated tungsten wire. 
A Brief Introduction of Hafnium Element in Hafnium Carbide
In nature, hafnium often co-exists with zirconium, and zirconium-containing minerals contain hafnium. Hafnium and zirconium are similar in nature, and hafnium is mainly found in zircon. The amount of HfO2 in zircon used in industry is 0.5-2%. The beryllium zircon in secondary zirconium ore can contain up to 15% HfO2. There is also a metamorphic zircon using stone, which contains more than 5% of HfO2. The latter two minerals have small reserves and have not yet been used in industry. Hafnium is mainly recovered in the process of producing zirconium.
The Supplier of Hafnium Carbide
As a global Hafnium carbide supplier, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (titanium nitride, silicon nitride, titanium nitride, etc.) high-purity targets, functional ceramics and structural devices, and provides OEM services. For the latest price of Hafnium carbide, send us an email or click on the needed products to send an inquiry.

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