PVD process used to deposit thin films of material onto surfaces. While PVD coatings are typically known for functional purposes like enhancing wear resistance, corrosion resistance, or providing a specific surface finish, they can also be used for decorative purposes to create vibrant and visually appealing decorative colour coatings, by depositing layers of different materials onto a substrate in a controlled environment.
By adjusting the composition and thickness of these layers, a wide range of colours and finishes can be achieved.
Some typical materials used for decorative PVD coatings include titanium nitride (TiN), chromium nitride (CrN), zirconium nitride (ZrN), and titanium aluminium nitride (TiAlN) and also including some carbon and oxygen when necessary.
Zr 702 target for decorative applications
We do two phases of planning for the decorative coating business
In the starting phase, it commences as follows:
Many substances can be applied as coating materials, including metals (e.g., titanium, chromium, zirconium), metal alloys, and compounds (e.g., nitrides, carbides). A variety of materials give rise to distinct hues and finishes.
Choices of colours: PVD can produce an extensive array of colour shades, such as
rose gold
black
bronze,
and other metallic tones.
The colour is adjustable by manipulating the deposition parameters and is determined by the composition of the coating material.
Applications:
In the automotive industry, wheels, trims, and logos are coated with PVD for aesthetic and corrosion-resistant purposes.
Luxury products and jewellery: PVD-coated jewellery features an aesthetically pleasing and long-lasting finish.
Architectural components clad in PVD coatings enjoy both aesthetic and practical advantages.
Advantages
Enhanced Durability - The hardness and resistance to wear and peel of PVD coatings extend the life of the products
Aesthetic Appeal
Vibrant and long-lasting decorative embellishments are achievable through this process. PVD is a significantly more environmentally sustainable process than conventional electroplating techniques. Compared to traditional plating processes, PVD coatings are generally more environmentally friendly as they produce fewer hazardous by-products and use lower levels of toxic chemicals.
The process of customisation
PVD coatings are customisable in that particular hues and finishes can be achieved by consumer preferences. The procedure enables meticulous regulation of the coating's thickness, which impacts the ultimate aesthetic.
Once we install the machine in the later phase, we focus on the following points.
colour results of 1 week testing
Colour Variation: PVD coatings can generate various hues, including gold, copper, blue, black, and even iridescent effects like a rainbow. The resulting colour is contingent upon variables such as the composition of the material, the thickness of the applied layers, and the specific processing conditions employed.
Versatility: PVD coatings may be applied to a wide range of substrates, such as metals, polymers, ceramics, and glass, enabling flexibility in design and application.
Overall, decorative colour coatings by PVD provide a high-quality, visually appealing finish with excellent performance characteristics, making them a popular choice for a wide range of applications in industries such as fashion, automotive, and architecture.
preparing the substrate holder table and spindles
The challenges of PVD for decorative coatings are
Initial Expenses: PVD apparatus can be costly, increasing the manufacturer's initial expenses.
Size Restrictions: PVD may exhibit excellent suitability for objects that are smaller in size or possess intricate shapes, while the processing of more oversized items may necessitate the use of specialised apparatus.
Tuning PVD colours involves adjusting various parameters during the deposition process to achieve specific colours or colour combinations desired for decorative purposes.
Some key factors that can be adjusted to tune PVD colours are
material selection
thickness control
substrate preparation
deposition conditions
post-deposition treatments
optical interference effects
quality control and
layer characterisation.
By carefully manipulating these parameters and conducting systematic experimentation, manufacturers can tailor PVD coatings to meet specific colour requirements for decorative applications in the automotive, fashion, consumer electronics, and architectural design industries.