How is silicon carbide titanium Ti3SiC2 powder produced?

MAX special ceramic material silicon carbide titanium Ti3SiC2 powder overview

MAX phase products, especially titanium silicon carbide (Ti3SiC2), have a series of characteristics such as high damage tolerance, good mechanical and thermal properties, making it possible to be used as the nuclear fuel in the gas-cooled fast reactor for the fourth-generation nuclear reactor cladding material.

Titanium carbide of chemical formula Ti3SiC2 is a material with metal and ceramic properties. It is one of the MAX stages.

Titanium silicon carbide (Ti3SiC2) is a new type of ternary layered ceramic material that combines the characteristics of metal and ceramic. It not only has the excellent properties of ceramics, but also has high yield strength, high melting point, high thermal stability and high temperature strength, as well as metal properties. It has high thermal conductivity and electrical conductivity at room temperature, and can be processed like metal with high-speed steel tools. , It has strong and good oxidation resistance, thermal shock resistance and corrosion resistance at high temperatures. Good plasticity, friction coefficient and better self-lubricating performance than graphite carbonization

Titanium silicon carbide is a unique ceramic because it has ceramic and metallic properties, which means it is suitable for mechanical and electrical applications. For example, it exhibits high temperature stability and high electrical and thermal conductivity, and has moderate resistance Oxidation. In addition, it has a high elongation at break at high temperatures and can be processed with hardened steel tools

Titanium silicon carbide (Ti3SiC2) is a new type of material that is attractive to materials scientists and physicists. The remarkable characteristics of this material include high melting point, high strength and modulus, high thermal conductivity and electrical conductivity, excellent high temperature oxidation resistance, and can be processed by electric discharge methods and conventional cutting tools

Titanium silicon carbide (Ti3SiC2) is a promising ceramic material, but it combines the advantages of metal and ceramics and is widely used. Titanium silicon carbide (Ti3SiC2) has a melting point of up to 3200°C, a low density of 4.53g/cm3, a Young's modulus of 320GPa, a Vickers hardness of 4GPa, and high high-temperature strength and ductility. Ti3SiC2 is also thermally and electrically conductive. Not only can Ti 3 SiC 2 be used as structural ceramics, but because of its high thermal conductivity, it is also very attractive in applications such as commutation brushes.

In recent years, the ability of titanium silicon carbide (Ti3SiC2) to resist radiation damage has attracted more and more attention.

How is silicon carbide titanium Ti3SiC2 powder produced?

A method of reducing titanium dioxide in a vacuum at 1550°C with a mixture of silicon carbide and silicon powder. Ti3SiC2 is synthesized from a starting powder mixture that does not contain pure titanium. The presence of pure titanium in the powder is problematic because it has oxidizing properties and is explosive in the form of a finely divided powder.

Titanium silicon carbide is synthesized by solid-phase reaction. There is a small amount of Tic in the reaction product. Through the solid-phase reaction with TiSi and graphite, it is difficult to synthesize pure titanium silicon carbide in one step. Pure titanium silicon carbide is obtained through a multi-step process. The process is as follows:

In the first step, TiSi and graphite were mixed at a molar ratio of 0.420.290.29 and pressed into test pieces. Place the test piece in an evacuated silicon test tube and treat it at 1100°C for 10 hours to obtain a mixture of TSiC2, TiC and TiSiC;

The second step is to remove TiSi2 with hydrofluoric acid, namely:

TiS+12(HF)一(TiF)+2SF+6H2

The third step is to oxidize TiC to TiO2 at 450°C in air for 10 hours, and then use (NH)SO and HSO at 100°C. The obtained solid phase product is pure titanium silicon carbide (TisSiC2) powder.

The powder synthesized by the above method must be sintered at a high temperature to prepare a bulk material.

Application of MAX special ceramic material silicon carbide titanium Ti3SiC2 powder

Because it has a lower coefficient of friction and good self-lubricating properties than graphite and molybdenum disulfide (MoS2), it can be used for sliding parts in the machinery industry, such as slip rings, bearing bushes, self-lubricating bearings and high-oxidizing atmospheres. The temperature-resistant bearings and so on.

1. It can be used for sliding electrical contacts in electromechanical engineering, such as pantograph sliders, electrodes, brush materials, micro-motor commutators, electrical contacts, etc.

2. In the electronics industry, it can be used as an electronic package heat sink, lead frame, etc.

3. Continuous casting molds in the metallurgical industry, etc.

Ti3SiC2 powder is used as MAX's special ceramic materials, electronic materials, high-temperature structural materials, electrode brush materials, chemical anti-corrosion materials, and high-temperature heating materials.

The material silicon carbide titanium Ti3SiC2 powder has many advantages over metals and ceramics. Like metal, it is also a good conductor of electricity and heat. Easy to process, soft, insensitive to thermal shock, and plasticity at high temperatures. It is also resistant to oxidation and high temperature like ceramics. The high temperature strength exceeds all high temperature alloys.

As a high-temperature material, the conductivity of silicon carbide titanium is twice that of graphite. With wear resistance, it has obvious advantages as the brush of transitional AC motor. Its high temperature strength, oxidation resistance, and thermal shock resistance can reach SiN. Since metal smelting electrode materials have good thermal shock resistance and high conductivity, metal smelting electrode materials can be used. In summary, titanium silicon carbide is a high-temperature material with important research value and application prospects.

MAX special ceramic material titanium carbide aluminum Ti2AlC powder price

The price of MAX special ceramic material silicon carbide titanium Ti3SiC2 powder will change randomly according to factors such as production cost, transportation cost, international situation, and silicon nitride market supply and demand. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for MAX special ceramic material silicon carbide titanium Ti3SiC2 powder, please feel free to send an inquiry to get the latest price.

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As a global MAX special ceramic material silicon carbide titanium Ti3SiC2 powder supplier, Tanki New Materials Co., Ltd. has rich experience in the performance, application and cost-effective manufacturing of advanced and engineering materials. The company has successfully developed a series of powder materials (titanium carbide aluminum Ti3AlC2 Max, MAX special ceramic material vanadium aluminum carbide V2AlC powder, MAX special ceramic material titanium carbide tin Ti2SnC powder, MAX special ceramic material silicon carbide titanium Ti3SiC2 powder), high-purity Target materials, functional ceramics, structural devices, and provide OEM services.