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Aluminum Oxide Foam provides extraordinary high temperature filtering, heat insulation, and structural support in challenging industrial environments. The open cavity ceramic architecture is a combination of ultra-dense materials with excellent mechanics, chemistry, and heat – making it a prime choice for filtering liquid metal, burning systems, and advanced refractory applications.
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What Is Alumina foam?

The aluminium oxide foam is an open cell ceramic material made from highly pure aluminium oxide (Al₂O₃), made by a controlled reproduction method where an aluminium paste is applied to a polyurethane foam template, dried and heated. The burning of an organic template leaves a solid, 3D ceramic web that reflects the interrelationships of the initial foam – producing a light but strong structural material with precise design of holes, permeability, and surface area properties.

The resultant structure combines the intrinsic properties of aluminum oxide — exceptionally hard, heat-stable at 1,700 degrees Celsius, and strong chemical resistance — with the geometrical advantages of an open cell bubble architecture: high air volume, winding channels, and a big inner surface area. Porosity is usually measured in PPI (PPI), which generally varies between 10 PPI for high flow filter and 60 PPI for fine filter and catalyst support applications. This tuning makes it possible to accurately match the flow, filter efficiency, and heat properties required for every particular application.

Aluminum Oxide Foam has been extensively applied in casting, metallurgy, power, and advanced manufacturing sectors in which high temperature filters, heat treatment, or catalyst are needed in order to quickly degrade polymeric or metal substitutes.

Why Choose Alumina Foam?

  • Exceptional High-Temperature Performance Alumina Foam keeps the structure intact and filtering efficient at 1700 degrees Celsius – which is ideal for filtering liquid metal, high temperature gas processing, and fire-resistant insulating applications in which the usual materials will not work.
  • Superior Molten Metal Filtration The winding open cell architecture efficiently traps nonmetallic inclusions, slags, and impurities from the liquid aluminium, iron, steel, and copper alloys – remarkably increases the purity of the cast metal, its mechanical performance, and its surface finish.
  • Excellent Chemical Resistance Resistant against the impact of molten metals, slags, acids, and alkalis. Aluminium foam retains the structure and function of the product under the conditions of the chemical attack - prolonging the lifetime of the product and decreasing the substitution rate.
  • Lightweight with High Mechanical StrengthDespite of its low volume, aluminium foam provides remarkable compression and heat - it is able to withstand both mechanical and heat stress in an industrial foundry and at a high temperature.
  • Tunable Porosity for Application-Specific Performance Available over a broad PPI range, it is possible to accurately define aluminum oxide foam in order to achieve a balance between filter efficiency, flow resistance, and pressure reduction – allowing process engineers to have the control required to optimise the quality of their products as well as their operating capacity.

업계의 과제

Thermal Shock Resistance

High temperature variations in industry and high temperature may lead to heat stress fracture, which may affect the structure integrity and decrease the lifetime of aluminum oxide foam.

Mechanical Fragility During Handling

In spite of the compression of the material in use, the ceramic properties of the aluminium foam are prone to breakage and breakage in transport, assembly and transport – which calls for meticulous packing and operating procedures.

Precise Pore Size Specification

Strict production control is required for the matching of the pore density and the distribution of the fluid to a particular filter or flow, since even a small deviation can have a significant effect on the filtering efficiency and the pressure-drop properties.

High-Temperature Chemical Attack

Long periods of contact with an aggressive liquid metal, slag, and caustic gas will slowly erode the aluminum bubble – so that the purity and components of the material are crucial for long term performance.

Consistent Porosity Across Production Batches

The maintenance of a homogeneous open cell structure, porosity, and permeability over a long period of time is a continuous manufacturing problem that has a direct impact on the conformity of the end user’s process and the quality of the product.

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Why Use Our Alumina foam

Exceptional High-Temperature Stability

Aluminum Oxide Foam retains complete structure and function at temperatures up to 1,700 degrees Celsius - outperforming metal and polymeric substitutes for liquid metal filtering, high temperature gas processing, and high heat insulation applications.

Superior Filtration of Molten Metals

An interconnected open cell architecture captures nonmetallic inclusions, slags, and solid pollutants from liquid aluminium, iron, steel, and copper – delivering a significantly cleaner cast metal with improved mechanical performance and surface quality.

Strong Chemical & Corrosion Resistance

Impervious to liquid, slags, acids and alkalis, aluminum foam maintains the structure of the material under a chemical attack - prolonging the lifetime of the product, decreasing the replacement rate, and reducing the overall operating cost.

관련 애플리케이션

Aluminum Oxide Foam has a unique combination of open cavity ceramic construction, high heat tolerance, and chemical stability, which is rarely matched by any other material. Ranging from molten iron foundry and high temperature burning systems to catalysts and advanced heat isolation, aluminum foam is used to solve key technological problems in both heavy and precise manufacturing. Explore the following fields of application to determine which of the aluminum foam will provide the best performance and operating benefits for your process.
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산업별 솔루션

Each sector has its own unique challenges in filtering, heat management, and high temperature control – and the correct material is crucial. Aluminum Oxide Foam is only one component in a wider range of Chemistry Tools, from Molten Metal Foundry and Burning Systems to Catalysis and Advanced Manufacturing. Explore a wide variety of industry specific solutions to meet your business needs and performance objectives in an efficient way.
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