Method for producing a refractory material based on magnesia or magnesia spinel, and refractory material based on magnesia or magnesia spinel

摘要

The invention relates to a method for producing a refractory material based on magnesia or magnesia spinel, and to a refractory material based on magnesia or magnesia spinel.

主权项

1. A method for producing a refractory material based on magnesia or magnesia spinel with the following steps:
1.1 provision of a batch comprising
1.1.1 a first component made of at least one of the following materials:magnesia or magnesia spinel;1.1.2 a second component comprising substances by means of which a binding phase comprising an AlN polytypoid can be formed when temperature is applied;1.1.3 wherein the mean grain size of the first component is greater than the mean grain size of the second component; 1.2 application of temperature to the batch within a temperature range in which the second component forms a binding phase comprising an AlN polytypoid; 1.3 the batch is exposed to pressure during the application of temperature in this temperature range.