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The titanium carbide-based Cermet is a heterogeneous material that is composed of metal phase or TiC ceramic phase. It combines high strength, wear resistance, resistance to high temperatures, chemical stability and chemical stability with ceramics. For titanium carbide-based Cermets, there are a number of synthetic preparation processes. Each has advantages and drawbacks. In the actual production, processes that are suitable for different applications and price factors can be chosen. 1. Chemical Vapor Deposition (CVD)
This method is a technology that deposits a thick, solid coating on the surface a substrate using a gas-phase reaction. Due to the fact that the entire reaction in this method is based upon thermodynamics the CVD film offers good adhesion as well as coatingability. It also has a dense film layer and a high film-base adhesive strength.
The processing temperature of this method (generally between 9001200) is high. The high temperatures cause the matrix of steel to soften. Vacuum quenching is required after the processing. The workpiece is easily deformed and the process is complex. This results in a decrease in the bending resistance of the matrix. Decrease, and harmful waste gases and waste liquids will be produced during preparation, which can easily cause industrial pollution. This is in contradiction to the green industry that the country advocates today.
2. Physical vapor deposition (PVD)
This method utilizes physical processes, such as thermal, sputtering and glow discharge discharge to deposit desired coatings on the surface of substrates. This includes sputtering, evaporation and ion-coating technologies. These are the two most common PVD techniques for coating ceramics.
A PVD film’s brittleness makes it easy to peel and crack. It is also a linear process, with poor adhesion, and coating properties. The vacuum chamber is more difficult to design and build because the workpiece has to swing or rotate during processing. There are problems such as an ineffective coating.
3. Liquid deposition
This is a chemical wet film-forming method. The basic principle is that by replacing the ligand between the ions of the solution, the hydrolysis balance movement of the metallic compound is driven. This results in the deposition on the substrate of a thin layer coating. The method works under low-temperature/room-temperature conditions. No heat treatment is needed, nor is expensive processing equipment.
The main disadvantage is that the liquid phase reaction is highly unstable and has many factors influencing it.
4. Thermal spraying
This technique involves heating a linear material or powder to a molten, semi-melted, state with a heat source, such as a flame or arc. High-speed droplets are formed and sprayed on the substrate, creating a coating. They can also be used as a protective layer, to restore or strengthen the material’s surface performance, and to reduce the size of parts that have been reduced by wear, corrosion, or processing tolerances. Plasma spraying, flame spraying and arc-spraying techniques are all part of the method.
5. In-situ Synthesis
In-situ composite technology is used to create the second phase of a material. It is created in situ and without pollution. The application of in-situ technology has expanded to include metal-based and cermet-based materials.
6. Other synthetic methods
Other synthetic methods include liquid EDM surface enhancement, sol-gel, melting and cast methods, mechanical alloying, self propagating high-temperature syntheses, thermal spraying, high-density energie beam coating, and others. The preparation method for carbonized-based cermet can be selected according to the needs and conditions of industrial production.
(aka. Technology Co. Ltd., a reputable global chemical material manufacturer and supplier with over 12 year’s experience in the supply of super-high-quality chemicals. Titanium Carbide TiC is produced in high purity with fine particles by our company. Contact us if you need to.
This method is a technology that deposits a thick, solid coating on the surface a substrate using a gas-phase reaction. Due to the fact that the entire reaction in this method is based upon thermodynamics the CVD film offers good adhesion as well as coatingability. It also has a dense film layer and a high film-base adhesive strength.
The processing temperature of this method (generally between 9001200) is high. The high temperatures cause the matrix of steel to soften. Vacuum quenching is required after the processing. The workpiece is easily deformed and the process is complex. This results in a decrease in the bending resistance of the matrix. Decrease, and harmful waste gases and waste liquids will be produced during preparation, which can easily cause industrial pollution. This is in contradiction to the green industry that the country advocates today.
2. Physical vapor deposition (PVD)
This method utilizes physical processes, such as thermal, sputtering and glow discharge discharge to deposit desired coatings on the surface of substrates. This includes sputtering, evaporation and ion-coating technologies. These are the two most common PVD techniques for coating ceramics.
A PVD film’s brittleness makes it easy to peel and crack. It is also a linear process, with poor adhesion, and coating properties. The vacuum chamber is more difficult to design and build because the workpiece has to swing or rotate during processing. There are problems such as an ineffective coating.
3. Liquid deposition
This is a chemical wet film-forming method. The basic principle is that by replacing the ligand between the ions of the solution, the hydrolysis balance movement of the metallic compound is driven. This results in the deposition on the substrate of a thin layer coating. The method works under low-temperature/room-temperature conditions. No heat treatment is needed, nor is expensive processing equipment.
The main disadvantage is that the liquid phase reaction is highly unstable and has many factors influencing it.
4. Thermal spraying
This technique involves heating a linear material or powder to a molten, semi-melted, state with a heat source, such as a flame or arc. High-speed droplets are formed and sprayed on the substrate, creating a coating. They can also be used as a protective layer, to restore or strengthen the material’s surface performance, and to reduce the size of parts that have been reduced by wear, corrosion, or processing tolerances. Plasma spraying, flame spraying and arc-spraying techniques are all part of the method.
5. In-situ Synthesis
In-situ composite technology is used to create the second phase of a material. It is created in situ and without pollution. The application of in-situ technology has expanded to include metal-based and cermet-based materials.
6. Other synthetic methods
Other synthetic methods include liquid EDM surface enhancement, sol-gel, melting and cast methods, mechanical alloying, self propagating high-temperature syntheses, thermal spraying, high-density energie beam coating, and others. The preparation method for carbonized-based cermet can be selected according to the needs and conditions of industrial production.
(aka. Technology Co. Ltd., a reputable global chemical material manufacturer and supplier with over 12 year’s experience in the supply of super-high-quality chemicals. Titanium Carbide TiC is produced in high purity with fine particles by our company. Contact us if you need to.