The structure of solid  salt eutectics  - Why lamellar or conglomerate?

David H Kerridge; Andy Horsewell; Rolf W. Berg

doi:10.1016/j.ssi.2009.09.004

The structure of solid salt eutectics - Why lamellar or conglomerate?

David H Kerridge, Andy Horsewell, Rolf W. Berg

Department of Chemistry

University of Southampton

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Using KCl/ZnSO4 eutectic it has been shown that cooling the melt into a room temperature enclosure forms a lamellar structure, whereas cooling into a heated enclosure (225 °C) forms a conglomerate structure, while an enclosure temperature of 125 °C gave a partially conglomerate structure with some lamellae in process of forming conglomerates. Consideration of the thermal gradients imposed on solidification and consequently the relative time available during which the ions are sufficiently mobile to rearrange their positions, can explain the observation that lamellar structures are formed by higher melting point eutectics, whereas eutectics of lower melting point form conglomerate structure.

Original language	English
Journal	Solid State Ionics
Volume	180
Pages (from-to)	1453-1456
ISSN	0167-2738
DOIs	https://doi.org/10.1016/j.ssi.2009.09.004
Publication status	Published - 2009

Keywords

KCl
Conglomerate
Eutectics
Lamellar
Structure
ZnSO4

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title = "The structure of solid salt eutectics - Why lamellar or conglomerate?",

abstract = "Using KCl/ZnSO4 eutectic it has been shown that cooling the melt into a room temperature enclosure forms a lamellar structure, whereas cooling into a heated enclosure (225 °C) forms a conglomerate structure, while an enclosure temperature of 125 °C gave a partially conglomerate structure with some lamellae in process of forming conglomerates. Consideration of the thermal gradients imposed on solidification and consequently the relative time available during which the ions are sufficiently mobile to rearrange their positions, can explain the observation that lamellar structures are formed by higher melting point eutectics, whereas eutectics of lower melting point form conglomerate structure.",

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T1 - The structure of solid salt eutectics - Why lamellar or conglomerate?

AU - Kerridge, David H

AU - Horsewell, Andy

AU - Berg, Rolf W.

PY - 2009

Y1 - 2009

N2 - Using KCl/ZnSO4 eutectic it has been shown that cooling the melt into a room temperature enclosure forms a lamellar structure, whereas cooling into a heated enclosure (225 °C) forms a conglomerate structure, while an enclosure temperature of 125 °C gave a partially conglomerate structure with some lamellae in process of forming conglomerates. Consideration of the thermal gradients imposed on solidification and consequently the relative time available during which the ions are sufficiently mobile to rearrange their positions, can explain the observation that lamellar structures are formed by higher melting point eutectics, whereas eutectics of lower melting point form conglomerate structure.

AB - Using KCl/ZnSO4 eutectic it has been shown that cooling the melt into a room temperature enclosure forms a lamellar structure, whereas cooling into a heated enclosure (225 °C) forms a conglomerate structure, while an enclosure temperature of 125 °C gave a partially conglomerate structure with some lamellae in process of forming conglomerates. Consideration of the thermal gradients imposed on solidification and consequently the relative time available during which the ions are sufficiently mobile to rearrange their positions, can explain the observation that lamellar structures are formed by higher melting point eutectics, whereas eutectics of lower melting point form conglomerate structure.

KW - KCl

KW - Conglomerate

KW - Eutectics

KW - Lamellar

KW - Structure

KW - ZnSO4

U2 - 10.1016/j.ssi.2009.09.004

DO - 10.1016/j.ssi.2009.09.004

M3 - Journal article

SN - 0167-2738

VL - 180

SP - 1453

EP - 1456

JO - Solid State Ionics

JF - Solid State Ionics