Surface tension of molten alkali silicates

Shartsis, L.; Spinner, S.

doi:10.6028/jres.046.043

Cited by 68 publications

(21 citation statements)

References 5 publications

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“…The glasses used in the present investigation were made for the investigations of surface tension [2] and viscosity [3]. They were later r emelted for the compressibility study [4].…”

Section: Preparation Of Glasses and Methods Of Testmentioning

confidence: 99%

“…The present results are part of a continuing st udy of various properties of bi nar.v alkali silicates. The properties meas ured previously include surface tension [2], density, expan si vity, v iscosity [3], and compressibility [4]. This is the second paper on the thermal expansivity of some selected binary glasses, and follows one concerned with Lhe binary alkaJineearth borate glasses [5].…”

Section: Introductionmentioning

confidence: 99%

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Thermal expansion of binary alkali silicate glasses

Shermer¹

1956

J. RES. NATL. BUR. STAN.

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The thermal expansions of a number of binary lithium, sodium, and potassium silicate glasses are reported over the tempcrature range from room temperature to thcir deformation points. The expans ivities of the glasses increased with increasing alkali oxide concentration. These expansivities were used to calculate density values, which were correlated with density measurements in the liquid range. At room temperature the density of each series incrcased with increasing alkali oxide concentration. vVith increasing temperatmc, t he dcnsitytemperature cur vcs for eac ll binary series crossed each othcr and thc density-concentration order was reversed. This reversal occnrrecl in the lowest tempcratuTc range for t he lith ium si licatcs, in an intermediate temperature rangc for the potassium silicates, and in the highest te mpcratnI'e range for thc sodium silicates.

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“…The glasses used in the present investigation were made for the investigations of surface tension [2] and viscosity [3]. They were later r emelted for the compressibility study [4].…”

Section: Preparation Of Glasses and Methods Of Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal expansion of binary alkali silicate glasses

Shermer¹

1956

J. RES. NATL. BUR. STAN.

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“…[3][4][5][6][7][8][9][10] However, the practical slags formed at the cohesive zone are multi-component systems, which are known to be mainly composed of CaO, SiO2 and Al2O3 with some extent of MgO, FetO and alkali oxides.…”

Section: Introductionmentioning

confidence: 99%

Density and Surface Tension of CaO–SiO2–Al2O3–R2O (R=Li, Na, K) Melts

et al. 2011

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In the present work, we measured the density and the surface tension of CaO-SiO2-Al2O3-R2O (CaO/ SiO2=0.67, Al2O3=20 mass%, R2O=10.8 mol%, R=Li, Na, K) quaternary melts at elevated temperature using the double-bob Archimedean method and the ring method, respectively.The density of the CaO-SiO2-Al2O3-R2O melts decreased with temperature due to the thermal expansion of the melts. In addition, the density of the CaO-SiO2-Al2O3 ternary melt decreased with the addition of the alkali oxides. We converted the density into the molar volume to have a consideration on the microstructure of the melts. The molar volumes of the CaO-SiO2-Al2O3-R2O melts are proportional to cube of the cationic radius for the alkali ions, which indicates the structural roles of the alkali oxides are mainly charge compensator to AlO4 5-anions. The surface tension of the CaO-SiO2-Al2O3-R2O melts changed only slightly with temperature. The surface tension of the CaO-SiO2-Al2O3 ternary melt increased with the addition of Li2O. In contrast, the surface tension decreased with the addition of Na2O or K2O. As for quaternary system, the surface tension increased with the ionic potential of the additive alkali ions; it is the same tendency with the binary alkali silicate melts. However, the mechanism of the surface tension change with the addition of the alkali oxides has not been clarified in the present study.KEY WORDS: density; surface tension; structure of aluminosilicate melts and glasses; CaO-SiO2-Al2O3 based slags; physical property; alkali oxides; charge compensating cation.

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“…1. These surface tensions were obtained by minimizing the average error between the calculated results and literature values, 6,18,32,[34][35][36][37][38][39][40][41] as expressed by Eq. (6) for each system temperature.…”

Section: Resultsmentioning

confidence: 99%