Surface engineering and coatings play a crucial role in enhancing the performance and longevity of materials in various industries. By modifying the surface properties of materials, engineers can improve wear resistance, corrosion resistance, and aesthetic appeal, making components more durable and functional. Techniques like physical vapor deposition (PVD), chemical vapor deposition (CVD), and thermal spraying are commonly employed to apply thin films or coatings that provide these benefits. These coatings not only protect materials from harsh environments but can also improve their heat resistance and friction properties. Surface engineering thus enables the creation of advanced materials that meet the demanding requirements of sectors like aerospace, automotive, and electronics.