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EFFECT OF ALUMINA ON DEVITRIFICATION OF SODIUM OXIDE‐DOLOMITE LIME‐SILICA GLASSES *
Author(s) -
SILVERMAN W. B.
Publication year - 1940
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1940.tb14275.x
Subject(s) - devitrification , dolomite , liquidus , lime , mineralogy , calcium oxide , sodium oxide , materials science , magnesium , phase (matter) , sodium , calcite , nepheline , chemical engineering , metallurgy , chemistry , crystallization , organic chemistry , engineering , alloy
A bstract The effect of the substitution of A1 2 O 3 for the oxides of sodium, silicon, calcium, and magnesium in the ratio in which they occur in dolomite on the liquidus temperatures and phase relations for glasses lying within the composition range, Na 2 O 12 to 16%, CaO‐MgO 0 to 20%, SiO 2 63 to 78%, and A1 2 O 3 0 to 10%, has been determined. The results on 116 individual determinations are given. Devitrite is the primary phase in very few glasses. Several glasses were found which cannot be devitrified. A comparison of devitrification temperatures of calcite and dolomite‐lime glasses is made.