The Matrix Of Refractory Materials

The matrix of refractory materials refers to the substances present in the gaps of large crystals or aggregates.

Matrix has a decisive impact on the properties of refractory products. During the use, the samage of refractories always starts from the matrix. Changing the matrix of refractories is an effective way to improve the properties of products.

Most refractory materials, according to the main crystal phase and matrix, can be divided into two types: refractories containing crystal phases and glass phase and refractories only containing crystals. The former includes fireclay brick, silica brick, etc.. The latter includes magnesia brick, magnesia chrome brick, etc..

These products are fired at high temperature and contain a certain amount of liquid phase. The liquid will not form glass phase when cooled but the crystalline matrix which is bonded together with the main crystal phase. The matrix crystal phases are different from the main crystal phase.