The choice of material for a muffle furnace is directly related to its high temperature resistance, mechanical strength, chemical stability and thermal efficiency. Traditional muffle furnaces mostly use high-temperature resistant materials such as refractory bricks and silicon carbide to build the furnace and furnace body, although these materials have good high-temperature resistance, but there are limitations in mechanical strength, thermal shock stability and chemical attack resistance. Therefore, in the design of the new muffle furnace, the choice of materials is particularly important.
In recent years, with the continuous development of high-temperature structural materials and composite materials, a series of high-performance materials have been introduced into the manufacture of muffle furnaces. For example, high-temperature alloys, ceramic composites and special glasses not only have excellent high-temperature resistance, but also excellent mechanical strength, thermal shock resistance and chemical stability. In addition, the application of emerging materials such as nanomaterials and coating technology also brings new possibilities for improving the performance of muffle furnaces.