Properties and Application Ranges of Four Common Ceramic Spraying Materials

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Properties and Application Ranges of Four Common Ceramic Coating Materials

Characteristics and Application Ranges of Four Common Ceramic Coating Materials:
1. Alumina: It is white in color and has a melting point of 2050℃. Due to its high hardness, it can be used as a wear-resistant coating in applications such as mechanical seals, plungers, shaft components, and other similar parts. It is also resistant to corrosion by acids, bases, and salts.
2. Aluminum-Titanium Hybrid Ceramics: As the TiO₂ content increases, the coating color changes from light gray to bluish-black. Its melting point is approximately 1800℃. The coating has a low porosity and exhibits excellent smoothness after polishing. Moreover, it does not generate static electricity during use. Therefore, aluminum-titanium ceramic coatings are widely employed in industries such as synthetic fiber textiles, printing, and dyeing.
3. Chromium Oxide: It has a dark green color, a dense coating, and exhibits excellent smoothness after polishing. It boasts outstanding chemical stability and is insoluble in a variety of solvents, including acids, bases, and salts. Consequently, this coating is widely used in various corrosive environments. It also features very high hardness, comparable to that of tungsten carbide-cobalt, making it suitable for wear-resistant applications.
4. Zirconia: It is white in color and has a melting point of 2860℃. It is used for the protection of high-temperature gas erosion-resistant parts and for the preparation of thermal insulation coatings.

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