Application of Metal Foam in Construction: A Powder Metallurgy Approach

Powder metallurgy (PM) is an extensive method that helps turn metal powders into various shapes and sizes to make them perfect for different applications. This process is also hailed for its ability to reduce or remove manufacturing waste and production steps, leading to the development of cost-effective solutions. Due to this manufacturing style, companies can access gears and many other smaller components for their machines. Even PM products offer excellent porosity to filter gas and liquid. Some materials cannot be melted because of their high thermal power. Or, it can be challenging to make an alloy out of two equally insoluble materials. However, PM techniques can be applied to achieve the desired goals.

To be precise, modern powder metallurgy practices are applied to produce components of various shapes and sizes from materials that cannot be melted or handled by any other means. Oil-impregnated bearings and sintered filters are examples of this. Its reach doesn’t end there. Today, construction companies heavily depend on metal foam products, which are also manufactured using advanced PM techniques. What is metal foam?

Metal foams overview

These are recently developed materials, about a few decades back. However, they have seen quicker adoption across multiple industries, particularly construction, due to being lightweight, durable, and energy-efficient. Metal foams feature gas-filled pores that lend them a foam-like appearance. They hugely differ from solid metals due to this specific trait. Construction companies use metal foams for thermal insulation, sound muffling, and energy absorption capabilities. While many metals are used, popular options include aluminum, copper, and titanium. Each offers some unique benefit.

Role of metal foams in the construction industry

Construction companies depend on different materials to build strong structures without increasing the weight. Metal foams fulfill these needs efficiently. They are used for insulation, impact-absorption, and structural integrity. Although these products weigh less, their load-bearing capability is excellent. As a result, they are applied in places where one has to take care of weight and strength factors. Their acoustic and thermal insulation efficiencies are another hallmark. When added to building materials, metal foams help regulate sound and temperature. Whether you construct high-rises or bridges, you can depend on them for their energy absorption abilities, which provide excellent stability to the structures. The other thing that makes metal foam products suitable for the construction industry is their sustainability. Their longer lifecycle minimizes waste, which burdens the planet in multiple ways.  

Of different metals, aluminum foams are heavily used in interior and exterior walls. Aluminum is preferred for its porous nature and lightweight. They are lighter because of their low density. However, it doesn’t affect their strength. They can face most types of external impacts and pressures. Their corrosion-resistant ability is also an attractive proposition. They can stay safe even during exposure to UV rays, chemicals, and changing weather.

PM methods have proved beneficial for construction and many other sectors. Their ability to produce near-perfect shapes and sizes at an affordable price makes them more reliable. Their contribution to green manufacturing makes them extra appealing for modern construction. If you want to build strong and sustainable structures, seek PM products. Some manufacturers offer customization to meet the specific project needs of different companies.