Plasma-sprayed ceramic high-temperature coatings primarily utilize yttria-stabilized zirconia (YSZ) and silicon oxide-alumina ceramic materials. These thermal barrier coatings offer superior high-temperature resistance and low thermal conductivity, along with excellent resistance to high-temperature gas erosion and thermal shock. They can operate stably under high-temperature conditions of 800°C to 1600°C, serving as a "fire-resistant armor" for the high-temperature alloy matrix, thereby extending the service life of the matrix material.

Application Direction:

1. Heat-resistant components for aeroengines, marine and land-based gas turbines, engine combustion chambers; protective coatings for rocket nozzles, civil internal combustion engines, turbochargers, heat treatment annealing furnaces, etc.

2. High-temperature resistant protective coatings for graphite products, anti-oxidation coatings for sintering, brazing, and other fixtures in powder metallurgy.

3. Semiconductors, etching machines, and semiconductor component sintering.

Coating Material:

YSZ (ZrO2-Y2O3 7%): Low thermal conductivity, resistant to high-temperature gas erosion.

2. YCZ (ZrO2-Y2O3-CeO2): High resistance to high-temperature oxidation and thermal shock, with a catalytic function for organic combustion. Used for the heat-resistant and catalytic coating on the top of internal combustion engine pistons, it can reduce the content of unburned organic matter in exhaust by over 80%.

3. Al2O3: Resistant to high-temperature corrosion with good thermal stability. High reflectivity to light and high-temperature radiation.

4. Molybdenite (Al2O3-SiO2): Resistant to high-temperature corrosion, good acid resistance, withstands slag erosion, and is resistant to high-temperature flue gas particle erosion.

Yttria (Y2O3): Resistant to plasma corrosion, used in semiconductor silicon wafer etching, with high-temperature resistance up to 1500-2000 degrees.