NGT36-1-09
1956
Possible sub solidus phase borders in the corundum field of the system SiO2-Al2O3-Na2O.
36
1
56-61

Crystals formed in a glass taken from the surface of an industrial glass tank furnace refractory brick of the melting zone have been studied. The results indicate the presence of two, possibly three, sub solidus phase borders in the corundum field of the SiO2-Al2O3-Na2O diagram.