To establish phase relations in the quaternary system Li 2 O‐Na 2 O‐Al 2 O 3 ‐SiO 2 , the 50, 60, 70, 80, and 90 wt% isosilica planes were examined, mainly by quenching of quaternary glass compositions.
P. L. RoederF. P. GlasserE. F. Osborn
Kazem Ghanbari‐AhariAndrew M. Cameron
H. J. BosmansE. TambuyzerJ. PaenhuysL. YLENJacqueline Vancluysen