Zircon-Alumina Composite ZIRCALU®: A Mineral combination of Excellence for High-Temperature

Zircon-Alumina is a high-performance mineral compound designed to meet the requirements of industries operating at extreme temperatures. Combining the chemical stability of zirconium and the thermal resistance of alumina, it is an essential solution for the manufacture of refractories and foundry equipment.

Under the ZIRCALU® brand, CMMP promotes this technical material in calibrated, controlled formulations adapted to each application. ZIRCALU® Zircon-Alumina is produced in its French facilities from rigorously selected raw materials, guaranteeing consistent quality, high purity and long-lasting performance.

For over a century, CMMP has been supporting manufacturers in choosing reliable and sustainable mineral solutions. ZIRCALU® is part of this commitment to excellence, providing robustness, chemical inertia and thermal efficiency to systems subjected to extreme conditions.

The ZIRCALU® Zircon-Alumina compound stands out thanks to the unique complementarity of its two components. Zirconium provides very high resistance to corrosion and abrasion, while alumina confers remarkable thermal stability. Together, they form a mineral matrix capable of withstanding temperatures of over 1,600°C without deformation or loss of mechanical properties.

This combination guarantees excellent thermal shock resistance, high chemical inertia and optimal dimensional stability, even in the most demanding environments: industrial furnaces, crucibles, foundry moulds and refractory structures.

According to the study ‘Long-time corrosion resistance of zircon-alumina refractories by molten steel’ published in 2019 in the Journal of the Australian Ceramic Society, adding alumina to a zircon matrix significantly improves the corrosion resistance and thermal stability of refractories exposed to molten metals, confirming the superiority of zircon-alumina composites in high-temperature environments.

ZIRCALU® Zirconia-Alumina is the benchmark in the refractory and foundry sectors, where the strength and durability of materials determine the performance of installations. Used in the manufacture of bricks, moulds and crucibles, it offers exceptional stability against thermal variations, corrosion and abrasion.

Thanks to its homogeneous texture and controlled particle size, ZIRCALU® ensures even distribution in formulations, limiting cracks and deformations during repeated thermal cycles. In ferrous and non-ferrous metal foundries, it guarantees long-lasting protection against mechanical and chemical wear, while optimising the quality of castings.

In refractory environments, its unique composition extends the service life of installations, reduces the frequency of replacements and improves the energy stability of equipment subjected to temperatures above 1,600°C.

The properties of ZIRCALU® zirconium alumina make it the material of choice for extreme industrial environments:

• High thermal resistance (> 1,600 °C)
• Excellent chemical stability against acids and alkalis
• Low thermal expansion, limiting cracks and deformation
• High hardness, ensuring long-lasting mechanical resistance
• Compatibility with multiple refractory binders and matrices
• Purity and grain size homogeneity controlled by CMMP

These characteristics guarantee consistent performance in all industrial settings, from steel production to glass melting processes.

By choosing ZIRCALU® zircon-alumina, manufacturers benefit from a product that is robust, stable and durable, designed to withstand the most severe thermal and chemical conditions.

Our expertise in the transformation process, rigorous selection of raw materials and consistent quality make ZIRCALU® a benchmark in the market for high-performance refractory compounds.

CMMP offers its expertise to help professionals choose the particle size, packaging and technical specifications best suited to their needs.

Are you looking for industrial-grade zirconia-alumina, designed for reliability and longevity?
Contact CMMP today to discover the different types of packaging available for our ZIRCALU® and obtain a logistics solution optimised for your needs.