The components of ceramic fiber insulation materials mainly include aluminum silicate (Al₂O₃·SiO₂), silicon dioxide (SiO₂), aluminum oxide (Al₂O₃) and zirconium oxide (ZrO₂). These components make ceramic fibers have excellent high temperature resistance, light weight, good thermal insulation and chemical stability.
Specifically, the composition ratio and preparation process of ceramic fibers have an important influence on their performance. The original ceramic fibers were made of natural minerals such as aluminum silicate, but their application range was limited due to high production costs, high impurity content, unstable performance and other problems. With the development of science and technology, people began to use artificial synthetic materials to make ceramic fibers to improve the purity of their chemical composition and reduce the impurity content.
In addition, ceramic fibers can be divided into two categories according to their composition: glassy (amorphous) fibers and polycrystalline (crystalline) fibers. Amorphous fiber is a kind of fiber with a glass paper structure formed by cooling molten liquid material, while polycrystalline fiber is mostly made by colloid blowing or centrifugal spinning.
Ceramic fiber has a wide range of applications, including heat insulation materials for kilns, ovens, muffle furnaces and other equipment in metallurgy, chemical industry, petroleum, ceramics, glass, electronics and other industries. In addition, it can also be used to make personal protective equipment such as high-temperature protective clothing, gloves, and headgear, as well as fire safety products such as high-temperature electrical insulation materials, fire doors, and fire curtains.
