1. Material selection
Ceramic materials, such as alumina and zirconia, have high melting points and good thermal stability.
Metal alloys, such as nickel based and cobalt based alloys, are resistant to high temperatures and oxidation.
Composite materials, such as carbon fiber reinforced composites, combine the high-temperature resistance characteristics of various materials.
2. Coating structure
Multi layer structure: By stacking different materials, the thermal insulation and heat resistance are enhanced.
Nanostructure: Nanomaterials can enhance the thermal stability and mechanical strength of coatings.
3. Chemical stability
Oxidation resistance: Coating materials are not easily reactive with oxygen at high temperatures, avoiding oxidation.
Corrosion resistance: able to resist chemical corrosion at high temperatures.
4. Matching of thermal expansion coefficient
The thermal expansion coefficient of the coating is similar to that of the substrate, avoiding cracks or detachment due to temperature changes.
5. Preparation process
Thermal spraying: such as plasma spraying, forms a dense and high-temperature resistant layer.
Chemical vapor deposition (CVD): produces high-purity and highly stable coatings.
Sol gel method: prepare uniform and high temperature resistant films.
6. Thermal insulation mechanism
Low thermal conductivity: The coating material has low thermal conductivity, reducing heat transfer.
Reflective: Some coatings can reflect thermal radiation and reduce heat absorption.

Application area 
Aerospace: Used for engine blades, combustion chambers, etc.
Energy: Used for gas turbines, nuclear reactors, etc.
Industry: Used for high-temperature furnaces, heat treatment equipment, etc.
Through these designs and processes, high-temperature resistant coatings can maintain stability and functionality in extreme environments.

Room termperature curing polysilazane, pls check IOTA 9150, IOTA 9150K. 
High termperature curing polysilazane, pls check IOTA 9108, IOTA 9118.