REFRACTORY PRODUCT HAVING A DOPED SIALON MATRIX

摘要

A sintered refractory product comprising a refractory granular material bound by a matrix, and having a crystalline nitrogen-containing portion comprising a SiAlON phase of formula SixAlyOuNv, where x is at least 0 and at most 1; y is at least 0 and at most 1; u is at least 0 and at most 1; and v is at least 0 and at most 1, and the product has a phosphorus content greater than 0.2 % by weight based on said crystalline nitrogen-containing portion. The product is particularly suitable for use in linings for ovens or furnaces or for heat exchangers.