Fiber Felts
Fiber Felts, are a versatile industrial solution for diverse applications. These three-dimensional structures of arranged fibers are offered in two variations: Sintered and Non-Sintered. Sintered Fiber Felts excel in high-temperature, high-purity settings, offering precision and durability. Non-Sintered Fiber Felts, economical options, are suited for applications without extreme temperature demands.
Sintered Fiber Felts excel in extreme environments. Crafted from materials like titanium, nickel, stainless steel alloys (including 316), and graphite, these felts offer high-temperature resistance, making them ideal for applications in petrochemicals, water treatment, and metallurgy. Their intricate, sintered structures deliver excellent filtration quality, ensuring your processes run smoothly.
Non-Sintered Fiber Felts, on the other hand, provide a cost-effective filtration solution for less demanding conditions. Their versatility and compatibility with various materials make them suitable for a wide range of applications, from air purification to electrolysis.
You can choose Fiber Felts in various materials: titanium, nickel, stainless steel alloys (like 316), and graphite, tailored to distinct applications. Industries such as petrochemicals, water treatment, and metallurgy rely on Fiber Felts for their efficient particle control, high-purity filtration, and reliability.
LINQCELL NFP 250 | Nickel Sintered Fiber Felt
- 0.25mm - 250um - 9.8mil
- Ni200 and Ni201 alloys
- Excellent catalyst support
- 4 weeks
LINQCELL NFP 500 | Nickel Sintered Fiber Felt
- 0.5mm - 500um - 19.6mil
- Ni200 and Ni201 alloys
- AEM and Alkaline Water Electrolysis
- 4 weeks
LINQCELL SFP 250 | Stainless Steel Sintered Fiber Felt
- 0.25mm - 250um - 9.8mils
- Durable and reliable
- Prefiltration support
- 4 weeks
LINQCELL SFP 600 | Stainless Steel Sintered Fiber Felt
- 0.6mm - 600um - 23.6 mil
- Superior filtration
- Purification and dust collection
- 4 weeks
LINQCELL SFP 1000 | Stainless Steel Sintered Fiber Felt
- 1mm - 1000um - 39.3mil
- 304, 304L, 316, 316L, 310s
- Filter membrane Support
- 4 weeks
LINQCELL TFP250 | 250um Titanium Fiber Paper
- 0.25mm - 250um - 9.8mil
- 50 - 60% Porosity
- Electrode and Support structure
- 8 weeks
LINQCELL TFP250S | 250um Titanium Fiber Paper
- 0.25mm - 250um - 9.8mil
- 60 - 70% Porosity
- Electrode and Support structure
- 8 weeks
LINQCELL TFP400 | 400um Titanium Fiber Paper
- 0.40mm - 400um - 15.8mil
- 50 - 60% Porosity
- Electrode and Support structure
- 8 weeks
LINQCELL TFP400S | 400um Titanium Fiber Paper
- 0.40mm - 400um - 15.8mil
- 60 - 70% Porosity
- Electrode and Support structure
- 8 weeks
LINQCELL TFP 500 | 500um Titanium Sintered Fiber Felt
- 0.5mm - 500um - 19.6mil
- Variable Porosity
- Electrode and Support structure
- 4 weeks
LINQCELL TFP600 | 600um Titanium Fiber Paper
- 0.60mm - 600um - 23.6mil
- 50 - 60% Porosity
- Electrode and Support structure
- 8 weeks
LINQCELL TFP600S | 600um Titanium Fiber Paper
- 0.60mm - 600um - 23.6mil
- 60 - 70% Porosity
- Electrode and Support structure
- 8 weeks
LINQCELL TFP800 | 800um Titanium Fiber Paper
- 0.80mm - 800um - 31.5mil
- 50 - 60% Porosity
- Electrode and Support structure
- 8 weeks
LINQCELL TFP800S | 800um Titanium Fiber Paper
- 0.80mm - 800um - 31.5mil
- 60 - 70% Porosity
- Electrode and Support structure
- 8 weeks
Product Selector Guide
Item | Porosity (%) | Thickness (um)* | Basis Weight (g) | Actual weight (g)** |
50 - 60 | 250 | 45.5 | 18.3 - 22.6 | |
60 - 70 | 250 | 45.5 | 13.7 - 18.1 | |
50 - 60 | 400 | 72.8 | 29 - 36.3 | |
60 - 70 | 400 | 72.8 | 22 - 29 | |
50 - 60 | 600 | 109.3 | 44 - 54.5 | |
60 - 70 | 600 | 109.3 | 32.8 - 43.6 | |
50 - 60 | 800 | 145.7 | 58.3 - 72.9 | |
60 - 70 | 800 | 145.7 | 43.7 - 58.2 |
All the standard sheet sizes are 20 x 20cm
*Thickness tolerance is ±150um for all grades.
**The actual weight of the sheet will depend on the final porosity. This is the expected range.
Frequently Asked Questions
Frequently Asked Questions about Fiber Felts
What are Fiber Felts, and How Are They Used?
Fiber Felts are porous, three-dimensional materials used in various applications such as filtration, catalysis, electrode production, and more. They are prized for their unique structural properties and material choices, which make them highly adaptable to specific industrial requirements.
What Is the Difference Between Sintered and Non-Sintered Fiber Felts?
Sintering is a process where fibers are fused together at high temperatures to create a cohesive structure. Sintered Fiber Felts offer increased durability, temperature resistance, and precise pore control. Non-sintered Fiber Felts, on the other hand, are cost-effective and suitable for applications where these specific advantages are not required.
When Should I Choose Non-Sintered Fiber Felts?
Non-Sintered Fiber Felts are a cost-effective choice for applications where the advantages of sintering, such as high-temperature resistance and pore control, are not necessary. They are often used in applications where regular replacement is acceptable.
Frequently Asked Questions about Titanium fiber papers
What are the main advantages of using titanium fiber papers?
Titanium fiber papers offer several advantages, including high electrical conductivity, corrosion resistance, and mechanical strength. Their porous structure allows for efficient gas diffusion, making them suitable for applications requiring reactant distribution and electrolyte permeation. Additionally, titanium fiber papers are lightweight yet robust, making them ideal for aerospace applications where strength and weight reduction are critical.
How are titanium fiber papers utilized in electrochemical systems?
Titanium fiber papers are used in various roles within electrochemical systems. They can serve as gas diffusion layers, facilitating effective gas diffusion and reactant distribution in electrolyzers and fuel cells. Additionally, titanium fiber papers function as current collectors, providing a conductive pathway for electron transfer. Their porous structure aids in electrolyte flow and supports the overall structural integrity of the system.
What applications can benefit from the use of titanium fiber papers?
Titanium fiber papers find applications in several industries. In electrochemical systems, they are vital for hydrogen production in electrolyzers and oxygen reduction in fuel cells. Their porous nature also makes them suitable for filtration processes, such as particle separation and removal of contaminants from fluids. Furthermore, the aerospace industry benefits from titanium fiber papers due to their lightweight and strong characteristics, enabling sound absorption, thermal management, and reinforcement in composite materials.
Can titanium fiber papers be customized for specific applications?
Yes, titanium fiber papers can be customized to meet specific application requirements. They can be tailored in terms of thickness, porosity, and surface modifications to optimize their performance for desired outcomes. Additionally, different weaving or processing techniques can be employed to enhance their mechanical properties or surface characteristics. Collaborating with manufacturers and experts can help determine the most suitable customization options based on the intended use of titanium fiber papers.
Frequently Asked Questions about Sintered Stainless Steel Fiber Felts
What are Sintered Stainless Steel Fiber Felts?
Sintered stainless steel fiber felts are non-woven filter media constructed from randomly laid short stainless steel fibers. These fibers are then sintered, or fused, together to form a porous and robust filtration material. These felts have fine and consistent pore sizes, excellent resistance to high temperatures, corrosion resistance, and are highly durable. They also exhibit low electrical heat resistance, making them suitable for filtration of hot materials and electrical applications.
What Thickness Options are There for Sintered Stainless Steel Fiber Felts?
These felts come in various thicknesses, typically ranging from 0.25mm to 1.2mm, providing versatility for different filtration applications. Stainless steel fiber felts can also be cleaned and reused, making them a cost-effective filtration solution in applications where sustainability is a concern.
What are the Applications of Sintered Stainless Steel Fiber Felts?
They are used in a wide range of applications, including purification of polymers and polyester melt, pre-filtration in ultrafiltration processes, filtration in refining operations, and electronic dust collection for high-temperature gases. They also find use in protection filters for vacuum pumps, support for filter membranes, and in various industrial applications.
Are These Felts Suitable for High-Pressure and High-Temperature Environments?
Yes, sintered stainless steel fiber felts are well-suited for applications operating under very high pressure, high temperature, and corrosive conditions due to their robust and corrosion-resistant nature. They offer finer and more consistent pore sizes compared to woven wire mesh, making them efficient in deep and sub-micron filtration. They are also highly durable, corrosion-resistant, and ideal for applications that require resistance to high temperatures
Frequently Asked Questions about Sintered Nickel Fiber Felts
Learn More
Sintered Titanium Fiber Felts
Titanium fiber papers represent a specialized category of materials known for their unique properties and applications in various industries. These papers are composed of titanium fibers intricately woven together to form a porous and conductive structure. With their exceptional characteristics, titanium fiber papers find utility in diverse fields, ranging from electrochemical systems to filtration and aerospace applications.
Titanium fiber papers serve as versatile components in electrochemical systems, such as proton exchange membrane (PEM) electrolyzers and solid oxide electrolyzers. They function as critical elements in these devices, playing roles as gas diffusion layers, current collectors, and support structures. Their high electrical conductivity and corrosion resistance ensure efficient electron and ion transport, while the porous structure allows for effective gas diffusion, aiding in reactant distribution and facilitating electrolyte permeation.
Beyond electrochemical applications, titanium fiber papers find use in filtration processes, where their porous nature enables effective separation of particles and contaminants from fluids. They are often employed as filter media in industries such as pharmaceuticals, wastewater treatment, and air purification. Additionally, titanium fiber papers have gained traction in the aerospace sector for their lightweight yet strong characteristics, making them suitable for applications such as sound absorption, thermal management, and composite reinforcement.
Titanium fiber paper manufacturing process and properties
Titanium fiber paper is produced from titanium fibers through a laying process that involves lamination and lapping. The laminated titanium fibers are then sintered at high temperature, thereby creating a strong and porous three-dimensional fiber network. This three-dimensional structure endows titanium fiber papers with high surface area-to-volume ratio, high porosity, and high permeability. On top of these properties, titanium fiber papers are also known to be electrically conductive, workable (i.e., fiber papers can be rolled and processed), and highly resistant to corrosion and thermal stress.
Titanium fiber felt applications
Titanium fiber papers are used in a wide array of applications including aerospace, medical, military, and filtration. Recently, they have been employed as flow field and anodic distributors in fuel cell and electrolysis stacks.
Titanium fiber paper vs. carbon fiber paper
At the cathode side, carbon paper is the predominantly used porous transport layer. On the other hand, at the oxygen (anode) side of fuel cells, the environment is much more corrosive because of usage of pure oxygen and application of potentials as high as 2 V. The highly oxidative environment at the anode corrodes the carbon-based LGDLs, thereby forming CO2 (Eqn. 1) and carbonate ions (Eqn. 2) in acidic and basic media, respectively. Carbon corrosion drastically reduces the the activity and stability of the anode during galvanic or electrolytic operations. For these reasons, metal-based PTLs, specifically titanium fiber papers, are used at the anode of fuel cells and water electrolyzers.
| Carbon Fiber Paper | Titanium Fiber Paper |
Application | Cathode PTL | Anode PTL |
Advantages | High porosity and permeability | High electrical conductivity |
Disadvantages | Prone to corrosion at oxidative environments and high applied potentials | Prone to hydrogen embrittlement |
Titanium-based PTLs exhibit good corrosion resistance even when subjected to highly oxidative potentials. In the Pourbaix diagram of the titanium–water system, we can see that titanium forms a passivation layer under the operating conditions of PEM water electrolyzers. This layer prevents the direct contact between the titanium PTL and the corrosive electrolyte, thereby reducing the likelihood of corrosion. The passivation layer also stabilizes the titanium PTL surface and reduces the concentration of surface defects, which can serve as initiation sites for corrosive reactions. By minimizing the competing side reactions, the overall performance and durability of the electrochemical device improves substantially.
Titanium fiber paper as anode LGDLs in fuel cells and electrolyzers
As the anode GDL in fuel cells, titanium fiber papers serve as a porous media for the efficient and uniform delivery of gaseous reactants to the catalyst layer (CL). They also provide pathways that facilitate electron transport from the anode to the cathode, in which electrons are being used up during the reduction reaction. In addition to these, titanium GDLs also serve as water diffusion layers to avoid flooding and manage water build up in the anode of alkaline fuel cell stacks.