Physical and Chemical Characteristics   Physical characteristics
 

ZIRKOSIT-S

ZIRKOSIT-Y

KORVISIT-320

 

Refractoriness under load [Celsius]	1700	1700	1900
Open porosity [%]	1	1	8
Exudation at 1450 Celsius	low	low	nil
Blistering	little	little	nil

                                                         
Chemical composition [%]
 

Al2O3	51,5	46,0	98,5
ZrO2	33,8	40,6	-
SiO2	13,3	12,1	0,25
Na2O	1,0	0,9	0,9
Fe2O3	0,06	0,06	0,07
TiO2	0,07	0,07	trace
CaO	0,02	0,02	0,1

                                                                                     
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