Porous High Efficiency Titanium Fiber Sintered Felt

The porous high efficiency titanium fiber sintered felt is a non-woven material composed of titanium fibers. It is composed of countless fine titanium fibers staggered to form a mat-like structure.

Material properties

From the perspective of material properties, the porous high efficiency titanium fiber sintered felt first has an extremely high porosity. This property makes it form an intricate network of microporous channels inside, which provide sufficient space and paths for the transmission of gases and liquids, ensuring good permeability and fluidity. At the same time, high porosity also means that it has a large specific surface area, enabling more full contact and interaction with the surrounding environment.

Production process

In terms of production process, it is usually made by finely laying and sintering titanium fibers. In this process, the fibers are connected and fused to form a strong and stable structure. The production process is relatively mature and controllable, and parameters such as fiber distribution, sintering temperature and time can be adjusted according to different needs to obtain titanium fiber sintered felt with specific properties. The simplicity of this process also reduces production costs to a certain extent, making it competitive in the market.

Features

The porous high efficiency titanium fiber sintered felt has the following features:

1. High porosity. It has a large number of interconnected micropores, which is conducive to the passage of fluids and the exchange of substances.

2. Good air permeability. Allows gas to pass smoothly.

3. Uniform pore size distribution. Ensure consistency and stability of fluid passage.

4. High strength and toughness. It has a certain mechanical strength while maintaining a porous structure, making it difficult to damage.

5. Excellent corrosion resistance. Titanium itself has excellent corrosion resistance and can work stably in a variety of corrosive environments.

6. Good electrical conductivity. This is important for applications involving electrochemical reactions.

7. High specific surface area. Provides more places to react and interact.

8. High temperature resistance. Can maintain stable performance at higher temperatures.

9. Strong designability. The fiber distribution, sintering process, etc. can be adjusted according to different needs to meet the requirements of specific applications.

Parameters

Application

1. Industrial hydrogen production

Titanium fiber sintered felt can be used as cathode electrode diffusion layer for hydrogen production by water electrolysis, which can improve the efficiency and purity of hydrogen production.

2. PEM electrolyzer diffusion layer

In the PEM cell, titanium fiber sintered felt is used as a diffusion layer, which can promote the transmission of gas and liquid and improve the electrolysis efficiency.

3. Hydrogen fuel cells

Titanium fiber sintered felt can be used in the gas diffusion layer of hydrogen fuel cells, which can improve the performance and lifespan of the battery.

4. Medical field

Titanium fiber sintered felt can be used for filtration and separation of medical apparatus, such as hemodialyzer, artificial heart and lung machine.

5. Environmental protection

Titanium fiber sintered felt can be used in environmental protection equipment such as wastewater treatment and waste gas treatment, which can effectively remove pollutants.

6. Aerospace sector

Titanium fiber sintered felt can be used for lightweight design of aerospace equipment, while also meeting the requirements of high strength and high corrosion resistance.

The effect of porosity on performance

The porosity of the porous high efficiency titanium fiber sintered felt has an important impact on its performance, which is mainly reflected in the following aspects:

1. Air permeability

Titanium fiber sintered felt with high porosity has good air permeability and can allow gas to pass smoothly, which is very important for some applications that require gas transmission, such as fuel cells, gas sensors, etc.

2. Surface area

High porosity means that the material has a larger surface area, which can increase the contact area of the material with other substances, thereby improving the reaction rate and efficiency. For example, in the catalyst support, high porosity titanium fiber sintered felt can provide more active check points to promote the catalytic reaction.

3. Filtration performance

Titanium fiber sintered felt is often used as a filter material, and the porosity directly affects its filtration accuracy and filtration efficiency. Smaller pores can effectively block the passage of small particles, while larger pores can improve the filtration speed.

4. Strength and toughness

Porosity also has an impact on the strength and toughness of titanium fiber sintered mats. In general, materials with higher porosity are relatively brittle, while materials with lower porosity have higher strength and toughness. Therefore, in applications that require high strength and toughness, titanium fiber sintered mats with appropriate porosity need to be selected.

5. Thermal conductivity

Porosity affects the thermal conductivity of titanium fiber sintered mats. Higher porosity may result in a decrease in thermal conductivity, as air in the pores impedes heat transfer. However, in some thermal insulation applications, this may be beneficial.

6. Corrosion resistance

Titanium fiber sintered mats with higher porosity may be more susceptible to corrosive media because corrosive media can more easily penetrate into the interior of the material. Therefore, when used in corrosive environments, titanium fiber sintered mats with lower porosity or special treatment need to be selected.

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