Refractory clay or fireclay
Refractory clay is a type of clay that can withstand extremely high temperatures, above 1600°C, without deformation, cracking or significant changes in its structure. This clay is essential in the manufacture of products that require high heat resistance, such as stoneware, high-temperature porcelain, refractory bricks and kiln components. Refractory clay is mainly composed of minerals such as alumina (Al₂O₃) and silica (SiO₂), which give it its thermal resistance capacity.
In the ceramic industry, refractory clay is used to create parts that must withstand sudden changes in temperature and high-temperature environments without losing their physical properties. For example, in the manufacture of crucibles and kilns, fireclay is indispensable to ensure the durability and performance of equipment under conditions of intensive use. In addition, this clay is used in the production of technical ceramics, including components for engines, turbines and other devices operating in high-temperature environments.Interesting Fact
Refractory clay played a crucial role in the development of metallurgy during ancient times. Civilizations such as the Egyptians and Mesopotamians used refractory clays to make crucibles and kilns that could reach the high temperatures needed to melt metals such as copper and bronze. This breakthrough enabled the production of tools, weapons and luxury items, driving the technological and economic progress of these societies.Helpful Tip
When working with fireclay, it is important to add fireclay to the mix to improve its resistance to thermal shock and reduce the risk of cracking during firing. Also, be sure to follow the specific firing instructions for this type of clay, as it requires higher temperatures and longer firing times to reach its maximum strength..jpg/large)
