138
tn\
n
Q Quartz (Si02)
H HemaUte (Fe203)
3
Ś
'55
Figurę 5.9 Main crystalline phases in (a) mixes Mo and M30 fircd at 1050°C
and (b) in inix M30 fircd at diffcrcnt tempcraturcs.
5.3.2.4 Microstmcturc analysis of sintercd brick
Figurę 5.10 shows tlie SEM obsenations for the M.> and M30 brick samples sintercd at different temperatures (950. 1000 and 1050°C). Both of samples exhibited practically similar tendency of porosity and glassy pliase fonnation as a function of temperaturę. The incrcasc of temperaturę from 950 to 1050°C dccrcascs the amount of pores duc to tlie inereased fonnation of liquid pliase which tends to fili the porcs.