A refractory material, typically manufactured in block form, designed to withstand elevated temperatures is often used in high-heat environments. These units are vital components in the construction of furnaces, kilns, fireplaces, and other thermal processing equipment. The composition of the material varies depending on the intended application, but it generally includes a high percentage of alumina, silica, or magnesia. An example would be the lining of a pizza oven to withstand intense heat for long periods.
The utilization of these specialized blocks offers crucial protection against thermal degradation and structural failure in high-temperature applications. Their ability to resist spalling, chemical attack, and abrasion ensures the longevity and efficiency of industrial processes. Historically, these materials have played a pivotal role in the development of metallurgy, ceramics, and other industries requiring precise temperature control.