... material of 950 & # 176; C appear: hematite, magnetite, anorthite and glass phase, and at 1000 & # 176; C & # 8211; cristobalite. An increase in the firing temperature to 1050 & # 176; C does not lead ...
... of isometric and oval pores in the test samples gives them mechanical strength. The X-ray phase composition showed the presence of mullite and anorthite in the samples, which provide strength to heat-insulating ...
Studies have shown that mullite crystallizes in the brick of the Kazan Kremlin in the form of primary ("flaky") mullite, pseudomorphs of glass with acicular mullite over feldspar, and pseudomorphs ...