Ceramic fiber is essential in various industries involving high-temperature operations. It offers superior thermal resistance for protecting structures, equipment, and machinery, from steel and glass production to airplane and space vehicle manufacture.
In this article, we will detail the characteristics of the ceramic insulating fiber and some of its main attributes and use classification dependent on chemical composition and shape.
What is high temperature ceramic fiber?
Ceramic fibers are synthetic materials comprising small filaments made from high-purity aluminosilicate minerals.
Thanks to their particular properties and composition, ceramic fiber products contribute to preventing and reducing heat losses, in addition to protecting, providing insulation, and optimizing the energy performance of equipment, structures, and process machinery.
5 main characteristics of ceramic fiber
Ceramic fiber is an ideal insulator in high temperature environments due to its characteristics, such as:
- Low density. Due to its composition, ceramic fiber has a lower density than other materials, giving it an advantage in its lightness and flexibility. This makes it easy to install and transport.
- Low heat storage. It cools down more quickly, making it ideal when immediate access and handling are required. It has proven excellent for both intermittent and continuous operation applications.
- Low heat loss. It can reduce heat transfer and provide good thermal protection.
- Resistance to thermal shock. It withstands sudden changes in temperature without suffering damage.
- Low thermal conductivity. This reduces heat transfer and provides efficient heat shielding.
Classification of high temperature insulation fibers
High Temperature Insulating Wools are used in applications that can exceed 1112°F (600°C). Depending on your application, they come in various product formulations and chemistries/temperatures. Three main categories are easily available on the market.
Chemical composition/Temperature classification
- Refractory Ceramic Fiber. One of our product lines is MaxWool 2300, which is composed of a mixture of alumina and silica. This material can be used for temperatures up to 2300°F (1260°C). Another product line is our MaxWool 2600, composed of a mixture of alumina, silica, and zirconia. This material can be used for temperatures up to 2600°F (1425°C).
- Low Biopersistent fiber. Our LBP product line is SuperMag 2200. It comprises low biopersistence fibers (also known as biosoluble fibers). They contain a chemical composition of calcium, silica, and magnesium. This product is used at temperatures up to 2200°F (1200°C).
- Polycrystalline fiber wool. Here we find MaxWool 3000. This product is made from fibers that contain a polycrystalline mullite chemical composition, which allows for high tensile strength, durability, and low shrinkage at high temperatures.