Name: Zirconium Diboride Powder (ZrB2)
Brand: Xi'an Zhiyue Material Tech. Co., Ltd.

Advantages of Zirconium Diboride Powder (ZrB2)

Exceptional Thermal and Electrical Conductivity

Zirconium Diboride Powder (ZrB₂) is renowned for its outstanding thermal conductivity—often exceeding 100 W/m·K—and low electrical resistivity. These properties make it highly suitable for applications requiring efficient heat dissipation and stable electrical performance, such as in high-power electronics, aerospace thermal protection systems, and advanced structural components in hypersonic vehicles.

Ultra-High Temperature Resistance

One of the most critical advantages of ZrB₂ is its ultra-high melting point, which exceeds 3200°C. This property allows it to maintain structural integrity under extreme thermal stress, making it an ideal candidate for leading-edge nose cones, rocket nozzle linings, and other aerospace applications where materials are exposed to severe aerodynamic heating and oxidative environments.

Outstanding Hardness and Mechanical Strength

ZrB₂ exhibits remarkable hardness (typically 20–25 GPa) and mechanical strength, even at elevated temperatures. This makes it especially effective in wear-resistant applications, including cutting tools, crucibles, and components in aggressive processing environments. Its high modulus of elasticity further supports excellent dimensional stability under load.

Strong Oxidation Resistance in Protective Atmospheres

Although it begins to oxidize above 600°C in open air, ZrB₂ forms a passive protective layer of zirconium oxide (ZrO₂) and boron oxide (B₂O₃) that limits further oxidation in inert or low-oxygen environments. When used in combination with silicon carbide (SiC) or other additives, its oxidation resistance improves significantly, enabling use in atmospheric reentry and hypersonic flight systems.

Ideal for Dense Ceramic Composites and UHTCs

ZrB₂ is frequently used as a matrix phase in ultra-high-temperature ceramics (UHTCs), often combined with SiC, HfB₂, or TaC to engineer composites with tailored mechanical and thermal properties. Its fine particle size and excellent sinterability (especially when synthesized via carbothermal or self-propagating high-temperature synthesis) make it ideal for hot-pressing or spark plasma sintering (SPS) techniques.

High Compatibility in Thin Film and Sputtering Applications

In addition to bulk applications, ZrB₂ powder is also used in the fabrication of thin films and coatings. Its metallic conductivity, thermal stability, and high hardness contribute to protective and functional coatings in electronic devices, cutting tools, and wear-resistant surfaces. It is often used in the PVD sputtering process to produce hard coatings for microelectronics and optics.

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RM.1624. Block A. Ming Feng Bo Ma Dou, Cross of Ming Guang Road and Shang Xin Road, Xi'an Economic and Technological Development Zone, Shaanxi Province, China

Related Boride Powder

Tantalum Diboride Powder (TaB2)

Hafnium Diboride Powder (HfB2)

Vanadium Diboride Powder (VB2)