Porous Titanium Sheet

Porous titanium sheets are manufactured by powder metallurgy, typically through metal powder screening, isostatic pressing, and high-temperature vacuum sintering. This process produces a porous structure with interconnected pores that allow fluids or gases to pass through the material.

Pore size, porosity, and filtration performance can be adjusted by selecting suitable powder particle sizes and optimizing the manufacturing process. Custom porous titanium sheets can be supplied according to specific filtration, flow, and structural requirements.

Manufacturing Process

Metal powder screening → Isostatic pressing → High-temperature vacuum sintering

Structural Characteristics

Sintered porous titanium sheets contain interconnected or partially interconnected pores formed by bonded metal powder particles. Their pore structure and distribution depend on the powder characteristics and sintering conditions.

The pore structure can be tailored to meet different requirements for permeability, filtration, and mechanical strength.

Advantages 

• Controlled pore structure: Pore size and porosity can be adjusted through material selection and manufacturing parameters.

• Permeability: Interconnected pores allow gas or liquid to pass through the material.

• Corrosion resistance: Titanium offers good corrosion resistance in many environments, depending on the medium and operating conditions.

• Mechanical stability: The sintered structure provides useful strength and dimensional stability for filtration and separation applications.

• Thermal performance: Suitable for selected heat-transfer and thermal-management applications.

• Reusable design: Certain products can be cleaned and reused, depending on the filtration medium and cleaning method.

• Customizable filtration performance: Available in different pore sizes and dimensions to meet application-specific requirements.

Specifications

Typical application environments listed by material:

• Titanium and titanium alloys: Nitric acid, lactic acid, wet chlorine, seawater, and atmospheric environments, subject to operating conditions.

• Stainless steel: Selected nitric acid, sulfuric acid, acetic acid, oxalic acid, and phosphoric acid solutions, as well as hydrogen and coal gas applications, depending on the stainless steel grade and service conditions.

• Nickel: Selected applications involving molten sodium, sodium hydroxide, fluoride, and chlorine-containing media, subject to material compatibility.

Note: Filtration rating, pore size, maximum pressure, and maximum operating temperature should be confirmed for the specific product. Actual performance depends on material grade, sheet thickness, porosity, dimensions, fluid properties, and operating conditions.

Applications 

Porous titanium sheets are used in filtration, gas distribution, electrochemical systems, and other applications where controlled porosity and corrosion resistance are required.

• Pharmaceutical processing: Filtration and clarification of selected pharmaceutical solutions.

• Electrochemical and gas systems: Gas distribution, gas diffusion, and filtration in selected electrolytic and electrochemical equipment.

• Water and wastewater treatment: Filtration and aeration components for suitable treatment processes.

• Food and beverage processing: Filtration and clarification, subject to applicable hygiene and material requirements.

• Electronics manufacturing: Pretreatment filtration for high-purity water and reverse osmosis systems.

• Petrochemical processing: Filtration of selected petroleum products and chemical process streams.

• Fine chemical production: Recovery of precious-metal catalysts and solid-liquid separation.

• Aerospace and industrial gas systems: Filtration of gases under specified pressure and temperature conditions.

• Thermal management: Porous components for selected heat-transfer and heat-dissipation applications.

• Medical and energy applications: Porous titanium may be used in specialized implant or fuel-cell components when the material, design, manufacturing process, and applicable qualification requirements are satisfied.