An in-bath liquidus measurement for molten salts and slags

A technique is being developed to provide a rapid in-bath measurement of the liquidus temperature for salts and metallurgical slags. A copper or nickel cylinder is immersed into a molten bath and a computer based data-logging system is used to record the heating profile of a type K thermocouple cent...

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Main Authors: Grimsey, Eric, Li, N., Yan, Y., Warczok, A., Utigard, T.A.
Format: Conference Paper
Published: 1996
Online Access:https://www.tms.org/portal/PUBLICATIONS/Proceedings___Other_Resources/Light_Metals_Library/portal/Publications/Proceedings___Other_Resources/LMDL/Light_Metals_Library.aspx
http://hdl.handle.net/20.500.11937/81585
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author Grimsey, Eric
Li, N.
Yan, Y.
Warczok, A.
Utigard, T.A.
author_facet Grimsey, Eric
Li, N.
Yan, Y.
Warczok, A.
Utigard, T.A.
author_sort Grimsey, Eric
building Curtin Institutional Repository
collection Online Access
description A technique is being developed to provide a rapid in-bath measurement of the liquidus temperature for salts and metallurgical slags. A copper or nickel cylinder is immersed into a molten bath and a computer based data-logging system is used to record the heating profile of a type K thermocouple centered within the cylinder. The heat transfer is affected initially by the presence of a thin crust on the cylinder surface which freezes from the bath. When the crust melts, the rate of heating shows a subtle increase. Numerical differentiation is used to detect the on-set of this increase so as to provide an indication of the liquidus temperature of the melt. This paper outlines the technique predominantly through measurements of the melting points of pure sodium chloride and sodium nitrate. Factors which may affect the sensitivity of the measurement are discussed also.
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format Conference Paper
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institution Curtin University Malaysia
institution_category Local University
last_indexed 2025-11-14T11:18:35Z
publishDate 1996
recordtype eprints
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spelling curtin-20.500.11937-815852021-03-09T07:47:58Z An in-bath liquidus measurement for molten salts and slags Grimsey, Eric Li, N. Yan, Y. Warczok, A. Utigard, T.A. A technique is being developed to provide a rapid in-bath measurement of the liquidus temperature for salts and metallurgical slags. A copper or nickel cylinder is immersed into a molten bath and a computer based data-logging system is used to record the heating profile of a type K thermocouple centered within the cylinder. The heat transfer is affected initially by the presence of a thin crust on the cylinder surface which freezes from the bath. When the crust melts, the rate of heating shows a subtle increase. Numerical differentiation is used to detect the on-set of this increase so as to provide an indication of the liquidus temperature of the melt. This paper outlines the technique predominantly through measurements of the melting points of pure sodium chloride and sodium nitrate. Factors which may affect the sensitivity of the measurement are discussed also. 1996 Conference Paper http://hdl.handle.net/20.500.11937/81585 https://www.tms.org/portal/PUBLICATIONS/Proceedings___Other_Resources/Light_Metals_Library/portal/Publications/Proceedings___Other_Resources/LMDL/Light_Metals_Library.aspx restricted
spellingShingle Grimsey, Eric
Li, N.
Yan, Y.
Warczok, A.
Utigard, T.A.
An in-bath liquidus measurement for molten salts and slags
title An in-bath liquidus measurement for molten salts and slags
title_full An in-bath liquidus measurement for molten salts and slags
title_fullStr An in-bath liquidus measurement for molten salts and slags
title_full_unstemmed An in-bath liquidus measurement for molten salts and slags
title_short An in-bath liquidus measurement for molten salts and slags
title_sort in-bath liquidus measurement for molten salts and slags
url https://www.tms.org/portal/PUBLICATIONS/Proceedings___Other_Resources/Light_Metals_Library/portal/Publications/Proceedings___Other_Resources/LMDL/Light_Metals_Library.aspx
http://hdl.handle.net/20.500.11937/81585