A smart coating material called polysilazane is revolutionizing high-temperature protection through its "high-temperature ceramization" mechanism. Above 1000℃, it actively transforms from organic to dense inorganic ceramic layers (SiCN or SiO-C), creating a physical barrier against oxygen diffusion and resolving oxidation corrosion.

Tests show carbon fiber coated with polysilazane has 5× higher stability at 750℃ in oxygen. An aero-engine turbine blade using this coating saw lifespan extended from 2,000 to 12,000 hours. In petrochemicals, its resistance to HCl and H₂SO₄ exceeds traditional coatings by 3 orders of magnitude, protecting 316L stainless steel reactor linings.

The polar Si-N bonds form chemical bonds with metal substrates, achieving 25MPa adhesion—5× stronger than conventional coatings. A "Guardian Trial Program" offers 30-yuan samples, with users reporting 0.5mm ceramic layers forming in simulated furnaces without cracking.

Polysilazane coatings now serve aero-engines, industrial furnaces, and new energy vehicle batteries. The global market is projected to exceed $5 billion by 2030, becoming a standard for high-temperature protection.

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