| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to a burnt refractory ceramic product. The burnt refractory ceramic product with open porosity of 10-30 vol. %, is made from a mixture which contains finely dispersed refractory material with grain size d90 less than 100 mcm - 50-90 wt %;coarse refractory material with grain size d90 greater than 500 mcm - 10-50 wt %; refractory material with grain size d90 100-500 mcm up to 10 wt % and a component which forms melt liquid phase at application temperature of up to 1500C in amount of less than 5 wt %. ^ EFFECT: high heat resistance, compression strength and low gas-permeability. ^ 13 cl, 3 dwg |
