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PVD (Physical Vapor Deposition) and CVD (Chemical Vapor Deposition) are two major thin-film coating technologies. PVD vaporizes materials through physical means (e.g., heating or sputtering), resulting in strong adhesion but slower deposition rates. CVD forms coatings via chemical reactions, off
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PVD and CVD are the most commonly used surface treatment methods for tools and moulds, CVD is based on chemical vapour deposition and PVD is based on physical vapour deposition, as they differ in principle, the final coating results are different and each has its own focus in application.
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PVD stands for Physical Vapour Deposition. PVD coating refers to a thin film deposition technique whereby solid materials are sputtered or evaporated in a vacuum environment and deposited as pure materials or alloy components to form a coating on a substrate.
Views: 34 Author: Site Editor Publish Time: 2022-05-31 Origin: Site
PVD is a surface treatment process in which metallic or non-metallic materials such as titanium, graphite, gold, crystals and gases are formed on a substrate by sputtering, evaporation or ion plating. PVD has many advantages over traditional chemical plating methods: for example, it is a green and environmentally friendly process; it is not harmful to the operator; and the film is strong, dense, corrosion resistant and of uniform thickness.
The main methods commonly used in PVD technology are: evaporation coating (including arc evaporation, electron gun evaporation, resistance wire evaporation and other techniques), sputtering coating(including DC magnetron sputtering, intermediate frequency magnetron sputtering, RF sputtering and other techniques). These methods are collectively known as physical vapour deposition (PVD). Ion plating is often referred to in industry as "IP" because of the various gas ions and metal ions involved in the film formation process, which play an important role in PVD technology. To emphasise the role of ions, it is collectively referred to as ion plating.
Common PVD vacuum coatings include the following main colours.
1. The black range is generally composed of metallic carbides. The colour depth is adjustable and the shades can be adapted to the customer's requirements. The different metal carbides have different characteristics and colours, and different film systems can be selected according to the customer's needs.
2. Grey series, one strand consisting of titanium or chromium compounds, with adjustable depth of colour and adjustable shades according to the customer's requirements.
3. Gold imitation series (including gold imitation and rose gold imitation) without gold. The general composition consists of tin-TiCN-ZrN-zrcn and other ceramic compounds. The colour is close to IP rose gold and IP gold, but it is difficult to achieve the brightness of real gold.
4. The silver series is generally a chrome compound with adjustable colour depth. It can be divided into a cold series and a warm series. The cold series is blue with a good metallic light and the warm series is yellow, close to the natural colour of stainless steel.
5. For IP gold, the gold on the target is deposited on the workpiece to be plated by ion plating. The surface gold layer is the same colour as 24K gold and the thickness can be plated according to customer requirements.
6. IP rose gold is an alloy of gold and copper. It is widely used in jewellery design and processing because it has a very fashionable and beautiful rose red colour. It is also known as pink gold and red gold. Because the metal was popular in Russia in the early 19th century, it was also known as Russian gold, but this term is rarely used today.
7. The blue range, which includes sky blue, aquamarine, ice blue and dark blue, varies in composition from one colour system to another.
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