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ZSBN (BN-45%, Zr2O3 45%): The Ultimate Composite Material


ZSBN (Boron Nitride-Zirconia Composite) has emerged as a versatile and high-performance material with a composition of BN-45% and Zr2O3-45%. This innovative composite offers exceptional properties that make it highly valuable in various industries, including aerospace, energy, and beyond. In this article, we will explore the impressive features and diverse applications of ZSBN.

Figure 1. ZSBN Nozzles

Properties of ZSBN (BN-45%, Zr2O3-45%)

ZSBN is an advanced composite with unique features. It is composed of boron nitride, silicon carbide, and zirconium oxide to enhance its hardness and wear resistance. It also stands out for high thermal shock resistance, good chemical stability, and great dielectric strength.

1.  Exceptional Thermal Stability:

With a high decomposition temperature and low thermal expansion coefficient, ZSBN remains stable and maintains its integrity even in harsh thermal environments. This makes it an ideal material for applications that involve rapid heating and cooling cycles, such as thermal management systems, high-temperature furnace components, and aerospace propulsion systems.

2.  Excellent Thermal Conductivity:

Another key thermal advantage of ZSBN is its high thermal conductivity. Compared to traditional ceramic materials, ZSBN exhibits superior heat transfer capabilities. So, it could dissipate thermal energy efficiently and becomes an excellent choice for heat sinks, thermally conductive substrates, and electronic packaging. The enhanced thermal conductivity of ZSBN contributes to improved performance, reliability, and longevity of high-temperature devices and systems as well.

3.  Outstanding Electrical Insulation:

ZSBN demonstrates excellent electrical insulation properties, making it well-suited for electrical and electronic applications in high-temperature environments. Its low electrical conductivity prevents electrical leakage and ensures a reliable operation of electrical systems. ZSBN  is widely used in applications such as high-temperature electrical insulators, electrical connectors, and  power electronics components.

4.  Corrosion Resistance:

ZSBN exhibits exceptional resistance to chemical corrosion and chemical stability because of the presence of zirconia (Zr2O3). Thus, it is commonly employed in chemical processing equipment, corrosion-resistant coatings, and components exposed to corrosive gases or liquids to withstand harsh aggressive chemical environments.

5.  Mechanical Strength and Wear Resistance:

As a ceramic composite, ZSBN possesses remarkable mechanical strength and wear resistance. So, ZSBN finds use in wear-resistant components, cutting tools, and high-temperature bearings, contributing to the durability and performance of machinery and equipment in demanding industrial settings.

Related reading: ZSBN Nozzles Used in Molten Metal Atomization

Applications of ZSBN (BN-45%, Zr2O3 45%)

ZSBN's unique combination of thermal stability, electrical insulation, and chemical resistance makes it suitable for a wide range of demanding applications.

1.  Aerospace Applications:

The aerospace industry demands materials that can withstand extreme conditions while maintaining high performance. ZSBN meets these requirements with exceptional thermal stability and resistance to high temperatures. It is used in components such as engine parts, thermal barriers, heat shields, and rocket nozzles.

2.  Automotive Applications:

In the automotive industry, ZSBN finds use in exhaust systems, catalytic converters, and engine components. Thanks to its thermal stability and resistance to corrosion, it could withstand the harsh conditions encountered in automotive environments. ZSBN also contributes to the overall performance and durability of automotive systems.

3.  Chemical Processing:

ZSBN's resistance to chemical attack and corrosion makes it popular in chemical processing and petrochemical industries. It is employed in reaction vessels, crucibles, and other equipment used in chemical synthesis and processing. ZSBN's excellent chemical resistance ensures the integrity and longevity of equipment, reducing the risk of contamination and improving operational efficiency in these industries.

4.  Electronics Industry:

ZSBN finds extensive use in the electronic industry due to its excellent electrical insulation capabilities and thermal management properties. It is employed in heat sinks, ceramic substrates, and insulating layers in electronic devices. ZSBN's efficient heat dissipation characteristics maintain lower operating temperatures for electronic components, and its electrical insulation properties ensure reliable operation and protect against electrical short circuits.

5.  Energy Sector:

In the energy sector, ZSBN is utilized in thermal management systems, heat exchangers, and power generation equipment. ZSBN's high thermal conductivity allows for efficient heat dissipation. Additionally, its electrical insulation properties make it suitable for electrical connectors, insulating substrates, and other electrical components in power generation and distribution systems.


In summary, ZSBN has emerged as the ultimate composite material for numerous applications. Its exceptional thermal stability, high thermal conductivity, excellent electrical insulation, corrosion resistance, mechanical strength, and wear resistance make it a versatile and reliable choice for a wide range of industries. From aerospace and energy to research and development, ZSBN empowers innovation, enhances performance, and enables advancements. As technology continues to push the boundaries, ZSBN will undoubtedly play a pivotal role in shaping the future of advanced materials.

Advanced Ceramic Materials (ACM) is a reliable supplier of ZSBN ceramics. You can find quality other boron nitride composites including BN-ALN, BN-BO, PBN, and HBN on our website. Hope that you can select the most appropriate ceramics for your projects.

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