Flux growth of baryte-type BaSO4 from chloridic alkaline metal solvents

D. Ehrentraut; Markus Pollnau

doi:10.1016/S0022-0248(01)01693-1

Flux growth of baryte-type BaSO₄ from chloridic alkaline metal solvents

D. Ehrentraut, Markus Pollnau

Research output: Contribution to journal › Article

9 Citations (Scopus)

Abstract

The growth of BaSO4 from high-temperature fluxes of both chloridic alkaline metal and alkaline-earth metal solvents has been investigated. Two binary alkaline-metal solvent systems containing LiCl and the additive ternary system with CsCl–KCl–NaCl where optimized with respect to solute concentration and growth temperature. It is found that the solution of BaSO4 in these solvents increases with decreasing average radius of the solvent cation. In addition, the solubility of BaSO4 is increased in the LiCl-containing fluxes by a chemical reaction between solute and solvent. Binary solvents of LiCl–KCl and LiCl–CsCl delivered prismatic crystals of 2 cm size, whereas the CsCl–KCl–NaCl flux prefers the growth of short-prismatic crystals. The crystals grown under optimized conditions were crack free, colorless, and transparent.

Original language	Undefined
Number of pages	6
DOIs	https://doi.org/10.1016/S0022-0248(01)01693-1
Publication status	Published - 2002

Keywords

IOMS-APD: Active Photonic Devices
Solubility
Solvents
IR-70088
Barium compounds
Growth from solution
Lithium compounds
EWI-17554

Cite this

Ehrentraut, D., & Pollnau, M. (2002). Flux growth of baryte-type BaSO₄ from chloridic alkaline metal solvents. https://doi.org/10.1016/S0022-0248(01)01693-1

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abstract = "The growth of BaSO4 from high-temperature fluxes of both chloridic alkaline metal and alkaline-earth metal solvents has been investigated. Two binary alkaline-metal solvent systems containing LiCl and the additive ternary system with CsCl–KCl–NaCl where optimized with respect to solute concentration and growth temperature. It is found that the solution of BaSO4 in these solvents increases with decreasing average radius of the solvent cation. In addition, the solubility of BaSO4 is increased in the LiCl-containing fluxes by a chemical reaction between solute and solvent. Binary solvents of LiCl–KCl and LiCl–CsCl delivered prismatic crystals of 2 cm size, whereas the CsCl–KCl–NaCl flux prefers the growth of short-prismatic crystals. The crystals grown under optimized conditions were crack free, colorless, and transparent.",

keywords = "IOMS-APD: Active Photonic Devices, Solubility, Solvents, IR-70088, Barium compounds, Growth from solution, Lithium compounds, EWI-17554",

author = "D. Ehrentraut and Markus Pollnau",

year = "2002",

doi = "10.1016/S0022-0248(01)01693-1",

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T1 - Flux growth of baryte-type BaSO4 from chloridic alkaline metal solvents

AU - Ehrentraut, D.

AU - Pollnau, Markus

PY - 2002

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N2 - The growth of BaSO4 from high-temperature fluxes of both chloridic alkaline metal and alkaline-earth metal solvents has been investigated. Two binary alkaline-metal solvent systems containing LiCl and the additive ternary system with CsCl–KCl–NaCl where optimized with respect to solute concentration and growth temperature. It is found that the solution of BaSO4 in these solvents increases with decreasing average radius of the solvent cation. In addition, the solubility of BaSO4 is increased in the LiCl-containing fluxes by a chemical reaction between solute and solvent. Binary solvents of LiCl–KCl and LiCl–CsCl delivered prismatic crystals of 2 cm size, whereas the CsCl–KCl–NaCl flux prefers the growth of short-prismatic crystals. The crystals grown under optimized conditions were crack free, colorless, and transparent.

AB - The growth of BaSO4 from high-temperature fluxes of both chloridic alkaline metal and alkaline-earth metal solvents has been investigated. Two binary alkaline-metal solvent systems containing LiCl and the additive ternary system with CsCl–KCl–NaCl where optimized with respect to solute concentration and growth temperature. It is found that the solution of BaSO4 in these solvents increases with decreasing average radius of the solvent cation. In addition, the solubility of BaSO4 is increased in the LiCl-containing fluxes by a chemical reaction between solute and solvent. Binary solvents of LiCl–KCl and LiCl–CsCl delivered prismatic crystals of 2 cm size, whereas the CsCl–KCl–NaCl flux prefers the growth of short-prismatic crystals. The crystals grown under optimized conditions were crack free, colorless, and transparent.

KW - IOMS-APD: Active Photonic Devices

KW - Solubility

KW - Solvents

KW - IR-70088

KW - Barium compounds

KW - Growth from solution

KW - Lithium compounds

KW - EWI-17554

U2 - 10.1016/S0022-0248(01)01693-1

DO - 10.1016/S0022-0248(01)01693-1

M3 - Article

JO - Journal of crystal growth

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SN - 0022-0248

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Access to Document

10.1016/S0022-0248(01)01693-1

http://eprints.eemcs.utwente.nl/secure2/17554/01/033-jcg1_Ehrentraut.pdf