Thermal properties of calcium-aluminate based materials

Good cementing properties, fast setting and strong thermal performance make calcium aluminate a valuable raw material for use in the production of different types of new refractory materials, e.g., heat conductive/storage materials. The main aim of the study was to determine thermal properties of no...

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Autores principales:	Dmitri Goljandin, Andre Gregor, Tiit Kaljuvee, Priit Kulu, Rainer Traksmaa
Formato:	article
Lenguaje:	EN
Publicado:	Estonian Academy Publishers 2021
Materias:	materials science calcium aluminate refractories thermal properties disintegrator milling. Science Q
Acceso en línea:	https://doaj.org/article/1fb63e2ff5e547dfab075030b5205900
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spelling	oai:doaj.org-article:1fb63e2ff5e547dfab075030b52059002021-11-17T17:48:21ZThermal properties of calcium-aluminate based materials1736-60461736-753010.3176/proc.2021.4.19https://doaj.org/article/1fb63e2ff5e547dfab075030b52059002021-11-01T00:00:00Zhttps://kirj.ee/wp-content/plugins/kirj/pub/proc-4-2021-508-515_20211110123646.pdfhttps://doaj.org/toc/1736-6046https://doaj.org/toc/1736-7530Good cementing properties, fast setting and strong thermal performance make calcium aluminate a valuable raw material for use in the production of different types of new refractory materials, e.g., heat conductive/storage materials. The main aim of the study was to determine thermal properties of novel Nb-slag based materials with different fillers, and to clarify the optimal composition and technology. The preparation process of the studied materials was the following: mixing of components, casting into moulds and hardening of materials. To estimate potential application areas, the following thermal properties of CA-based materials were investigated: thermal behaviour, the coefficient of thermal expansion (CTE) and conductivity. For thermal analysis, small cylindrical specimens were cut out from produced materials, and plates sized 25 Ã 300 Ã 300 mm were used for conductivity studies. Different compositions of CA-based materials, the hardening process, and the influence of mechanical activation on the strength were analysed. The best thermal properties similar to the analogous reference materials were obtained by quartz sand and granite sand as filler materials. The thermal conductivity of the novel CA-based material is 1.5 times higher and the bending strength is about 3 times higher compared to commercial thermoplates.Dmitri GoljandinAndre GregorTiit KaljuveePriit KuluRainer TraksmaaEstonian Academy Publishersarticlematerials sciencecalcium aluminaterefractoriesthermal propertiesdisintegrator milling.ScienceQENProceedings of the Estonian Academy of Sciences, Vol 70, Iss 4, Pp 508-515 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	materials science calcium aluminate refractories thermal properties disintegrator milling. Science Q
spellingShingle	materials science calcium aluminate refractories thermal properties disintegrator milling. Science Q Dmitri Goljandin Andre Gregor Tiit Kaljuvee Priit Kulu Rainer Traksmaa Thermal properties of calcium-aluminate based materials
description	Good cementing properties, fast setting and strong thermal performance make calcium aluminate a valuable raw material for use in the production of different types of new refractory materials, e.g., heat conductive/storage materials. The main aim of the study was to determine thermal properties of novel Nb-slag based materials with different fillers, and to clarify the optimal composition and technology. The preparation process of the studied materials was the following: mixing of components, casting into moulds and hardening of materials. To estimate potential application areas, the following thermal properties of CA-based materials were investigated: thermal behaviour, the coefficient of thermal expansion (CTE) and conductivity. For thermal analysis, small cylindrical specimens were cut out from produced materials, and plates sized 25 Ã 300 Ã 300 mm were used for conductivity studies. Different compositions of CA-based materials, the hardening process, and the influence of mechanical activation on the strength were analysed. The best thermal properties similar to the analogous reference materials were obtained by quartz sand and granite sand as filler materials. The thermal conductivity of the novel CA-based material is 1.5 times higher and the bending strength is about 3 times higher compared to commercial thermoplates.
format	article
author	Dmitri Goljandin Andre Gregor Tiit Kaljuvee Priit Kulu Rainer Traksmaa
author_facet	Dmitri Goljandin Andre Gregor Tiit Kaljuvee Priit Kulu Rainer Traksmaa
author_sort	Dmitri Goljandin
title	Thermal properties of calcium-aluminate based materials
title_short	Thermal properties of calcium-aluminate based materials
title_full	Thermal properties of calcium-aluminate based materials
title_fullStr	Thermal properties of calcium-aluminate based materials
title_full_unstemmed	Thermal properties of calcium-aluminate based materials
title_sort	thermal properties of calcium-aluminate based materials
publisher	Estonian Academy Publishers
publishDate	2021
url	https://doaj.org/article/1fb63e2ff5e547dfab075030b5205900
work_keys_str_mv	AT dmitrigoljandin thermalpropertiesofcalciumaluminatebasedmaterials AT andregregor thermalpropertiesofcalciumaluminatebasedmaterials AT tiitkaljuvee thermalpropertiesofcalciumaluminatebasedmaterials AT priitkulu thermalpropertiesofcalciumaluminatebasedmaterials AT rainertraksmaa thermalpropertiesofcalciumaluminatebasedmaterials
_version_	1718425340004532224

Thermal properties of calcium-aluminate based materials

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