ZTA (Zirconia Toughened Alumina) ceramic lining is a high-performance engineering material fabricated by introducing a zirconia (ZrO₂) phase into an alumina (Al₂O₃) matrix. This composite structure combines the high hardness of alumina with the phase transformation toughening characteristics of zirconia, thereby significantly enhancing the material’s fracture toughness and resistance to mechanical impact. Its typical microstructure is uniform and dense, with a bulk density generally ≥3.95 g/cm³ and a Rockwell hardness (HRA) that can exceed 85. The material is produced through refined powder processing, isostatic pressing, and high-temperature sintering, ensuring excellent physical and mechanical stability.
The core advantages of this lining lie in its excellent wear and corrosion resistance. In practical industrial wear environments, the wear rate of ZTA ceramic can be 30%-50% lower than that of ordinary high-alumina ceramics. Its wear resistance benefits from high hardness resisting abrasive cutting and the energy absorption mechanism of microcracks generated by zirconia phase transformation. Simultaneously, it possesses superior chemical inertness, resisting erosion from most acid and alkali media (except hydrofluoric acid and concentrated hot strong alkalis). It maintains stable performance under long-term exposure to high temperatures (maximum service temperature up to 850°C) and harsh working conditions, with a service life far exceeding that of traditional metal protective materials.
ZTA ceramic lining is widely used in industries with severe wear, including thermal power generation, mining, cement production, steel smelting, and material handling systems. Specific application areas include cyclone separators, pipe elbows, fan impellers, chutes, hoppers, and various powder classifying equipment. Its installation methods are diverse, such as bonding, bolting, or modular embedding, effectively protecting equipment substrates. This significantly reduces the frequency of downtime maintenance and production costs caused by wear, enhancing system operational efficiency and safety.
In summary, ZTA alumina ceramic lining has become a key technical material in the field of industrial wear protection, owing to its scientifically optimized composite design and verifiable excellent performance. It provides reliable assurance for the long-term stable operation of equipment in harsh abrasive environments, offering significant economic benefits and application value. Ongoing research in materials and processing will further expand its performance limits and range of applications.
Post time: Jan-20-2026