In terms of providing high-performance, durable and aesthetically pleasing surface coatings, the PVD coating colors corresponding to different targets not only enrich the appearance of the product, but also provide additional physical and chemical properties, such as improved abrasion resistance, corrosion resistance, etc. Therefore, understanding the effect of the target on the coating color is critical to designing and producing products that meet the needs of a specific application.
The formation of PVD coating color is related to the physical and chemical properties of the target used. During the coating process, the target is evaporated or ionized to form a thin film on the surface of the workpiece. During the process, the type of target, the deposition environment (e.g., atmosphere composition and pressure), and deposition parameters (e.g., temperature and ion energy) all affect the final coating color.
Gold (Au) and silver (Ag) targets
Gold (AU) Target: The coating color produced by the gold target during the PVD process is the classic gold, which not only symbolizes luxury and wealth, but is also widely used in high-end decorations and electronic touchpoints due to its excellent oxidation resistance. Silver (AG) Targets: Silver targets produce a silvery-white coating with high reflectivity and good electrical conductivity, making them ideal for mirror decoration and electrical contact materials. Titanium (Ti) targets
Titanium target diversity: Titanium is a versatile target capable of producing coatings from gold to blue and even purple by adjusting the atmosphere (e.g., nitriding or carbonization) during the PVD process. This color change is mainly attributed to the formation of titanium nitride or titanium carbide films, which are not only aesthetically pleasing, but also have high hardness and excellent wear resistance. Example: Titanium-based PVD films are often used in decorative watches, spectacle frames, and medical devices due to their hardness and color variety. Chromium (Cr) target
Characteristics of chrome coating: The silver-gray coating produced by the chrome target has high hardness and excellent wear resistance, while also providing good corrosion resistance. This makes chrome coatings the preferred coating for automotive parts and tools. Industrial applications: Chromium targets are used in a wide range of applications in the PVD process, especially in areas where high durability and aesthetic appearance are required, such as automotive trim parts and bathroom accessories. Copper (Cu) target
Aesthetics and function of copper coatings: The red copper color coating produced by the copper target not only provides a unique warm tone, but is also used in the coating of electronic devices due to its excellent electrical conductivity. In addition, copper films have antimicrobial properties and are suitable for surface treatment of medical devices and public facilities. Molybdenum (Mo) targets
Industrial value of molybdenum coatings: The dark gray coatings produced by molybdenum targets have a place in aerospace and high-temperature industrial applications due to their superior heat resistance and mechanical strength. Molybdenum films are essential to improve the performance of tools and components under extreme conditions. 
Decorative field: add aesthetic value
Jewelry & Watches: PVD technology is able to create high-end metallic sheens such as gold, silver and rose gold on jewelry and watches, which not only enhances the aesthetic appeal of the products, but also significantly improves the durability and scratch resistance of these ornaments due to the high abrasion resistance of the PVD film. For example, PVD treatment with titanium targets can form a hard-wearing and richly colored film on the watch band, making the watch both stylish and durable. Mobile phone case: Through PVD technology, mobile phone case can achieve a variety of color effects, such as a smooth metallic texture or a unique gradient color. This technology not only provides more design freedom, but also extends the life of the phone case due to its excellent wear and corrosion resistance. Industrial applications: Improving performance and durability
Tools & Molds: PVD coating can significantly improve the hardness and wear resistance of tools and molds, thereby improving machining accuracy and extending service life. For example, PVD coatings with titanium or chrome targets not only improve the wear resistance of the tool, but also improve tool recognition and optimize the production process by using different colors. Automotive parts: In the automotive industry, PVD coating technology is used to create both aesthetic and durable cosmetic and functional parts. The silver-grey coating of chrome targets not only provides high gloss and excellent corrosion resistance to automotive exterior trim parts such as logos and door handles, but is also used in the manufacture of wear-resistant mechanical parts such as gears and bearings. Special functional areas: Enhanced safety and functionality
Color-specific devices and components with different functions: In medical devices and industrial tools, PVD coatings of different colors can be used to identify different functions or categories of operation, reducing the risk of operator errors and increasing productivity. For example, in surgical instruments, the different colors of the coating are not only aesthetically pleasing, but also help the doctor quickly identify the function of the tool and ensure that the operation runs smoothly. Application requirements
Abrasion resistance and hardness: For industrial knives, molds, and decorations that require wear resistance, it is important to choose targets such as titanium and chrome that provide high hardness and excellent wear resistance. Corrosion resistance: Components used in chemical or marine environments, such as marine equipment or chemical pipelines, require coatings with high corrosion resistance. Targets such as chromium and titanium provide this protection. Aesthetics: For decorative applications such as jewelry, watches or mobile phone cases, targets such as gold, silver and copper offer a wide range of color options and excellent appearance. Economical
Target cost: The cost of the target directly affects the cost-effectiveness of the entire PVD coating process. For example, gold and silver, while providing excellent decorative effects and performance, are expensive and may not be suitable for cost-sensitive applications. Coating efficiency: The deposition rate and utilization rate of different targets also affect production efficiency and cost. Choosing targets with high deposition rates and low material loss can improve production efficiency and reduce costs. Environmental factors
Environmental impact: When selecting a target, it is necessary to consider its potential impact on the environment during production and use. Environmentally friendly materials are preferred, which can reduce the emission of harmful substances and conform to the principles of green manufacturing and sustainable development. Resource sustainability: Consider the sustainability of the target and prioritize the use of resource-rich and easy-to-use materials to reduce dependence on scarce resources. 