Hafnium Carbide granules are composed of hafnium (Hf) and carbon (C) with high melting point, high hardness, good chemical stability, etc. They play an important role in many fields such as high temperature materials and cemented carbides.
VIMATERIAL offers high-purity hafnium carbide particles, targets, and powders, with custom particle sizes and dimensions available to meet your needs. Contact us for more information.
Appearance: Black odourless powder.
Density: 12.7g/cm³.
Melting point: 3890 ℃.
Thermal expansion coefficient: 6.73×10-⁶/°C.
Electrical properties: 1.95 × 10-⁴Ω・cm (2900 ℃).
Chemical properties: good chemical stability and corrosion resistance, maintaining good performance at high temperatures and in complex chemical environments.
Aerospace: Used in rocket nozzles and hypersonic vehicle thermal protection parts (such as nose cones and leading edges). It withstands extreme heat, pressure, and airflow, helping maintain structural stability.
Nuclear Industry: Used in nuclear reactor control rods due to its strong neutron absorption ability. It can also serve as a protective coating to resist high temperature and radiation, improving reactor safety and lifespan.
Tools and Molds: Added to cemented carbides to increase hardness, wear resistance, and cutting performance, extending tool life and improving machining efficiency.
Electronics: Used in high-power electronic devices as heat dissipation or electrode material because of its good thermal and electrical conductivity and high melting point.
High-Temperature Structural Materials: Used in furnace linings, high-temperature bearings, and seals, where excellent heat resistance, strength, and chemical stability are required.
Hafnium carbide (HfC) granules are usually packed in sealed moisture-proof bags or bottles, and then placed in sturdy outer containers such as plastic drums or cartons with cushioning materials. The packaging is designed to prevent moisture ingress, contamination, and mechanical damage during handling and transportation.
HfC granules should be stored in a dry, cool, and clean environment, away from humidity, acids, and oxidizing substances. The containers should remain tightly sealed to avoid moisture absorption and maintain material stability and purity.
Q1: What is hafnium carbide used for?
A: Hafnium carbide is mainly used in high-temperature and extreme-environment applications. It is applied in aerospace components (such as rocket nozzles and thermal protection systems), nuclear reactor materials, cutting tools, high-temperature structural parts, and protective coatings due to its extremely high melting point and excellent thermal stability.
Q2: Is hafnium carbide toxic?
A: Hafnium carbide is generally considered to have low toxicity in solid form, and it is stable and insoluble under normal conditions. However, like many fine ceramic or refractory particles, inhalation of dust should be avoided during processing, as it may cause respiratory irritation. Proper industrial handling practices are recommended.
Q3: Is hafnium carbide a ceramic?
A: Yes. Hafnium carbide is classified as an advanced ultra-high-temperature ceramic (UHTC). It has ceramic-like properties such as very high melting point, hardness, chemical stability, and wear resistance, making it suitable for extreme thermal and mechanical environments.
VI HALBLEITERMATERIAL GmbH (VIMATERIAL) employs a stringent quality assurance system to ensure the reliability of our product quality. Strict quality control is implemented throughout the entire production chain, and for defective products, we strictly enforce the principle of rework and redo. Each batch is released only after passing detailed specification tests.
Every batch of our materials is independently tested, and, if necessary, we send samples to certified companies for testing. We provide these documents and analysis certificates with the shipment to certify that our products meet the required standards.
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