Possibility of Reducing the Thermal Conductivity of Ceramic Refractory Materials

The research work covers a study of the possibility of producing porous ceramic bodies as a thermal insulators by adding fired Dechla kaolinite (grog)to the same non burned kaolinite. Different weight percentage ranged between (0,15,25,35and40)from grog and sawdust passed through mesh 50 to Deuc...

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Main Author: A. W. Watan
Format: Article
Language:English
Published: University of Baghdad 2017-05-01
Series:Ibn Al-Haitham Journal for Pure and Applied Sciences
Subjects:
Online Access:https://jih.uobaghdad.edu.iq/index.php/j/article/view/586
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author A. W. Watan
author_facet A. W. Watan
author_sort A. W. Watan
collection DOAJ
description The research work covers a study of the possibility of producing porous ceramic bodies as a thermal insulators by adding fired Dechla kaolinite (grog)to the same non burned kaolinite. Different weight percentage ranged between (0,15,25,35and40)from grog and sawdust passed through mesh 50 to Deuchla-clay kaolinit.Cylindrical shape samples (30mm diameter and 30mm height) were prepared by the semi-dry methed,moulding pressure was 50 N/mm 2 . After drying at 110 o c,the samples were burnet in the furnace at temperatures 900,950,1000,1050,and 1100 o c. The sawdust burnt out and leaves air spaces which contribute to the high thermal insulation value. The fired samples were investigated to determine bulk density , porosity, compressive strength and the thermal conductivity .It was found that the increase of grog ratio produces a decrease in bulk density ,compressive strength and thermal conductivity, but addition of sawdust to the samples produces decrease greater than when addition the grog
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spelling doaj.art-dbd809671a6740238b110b6830bc18b82022-12-22T00:44:37ZengUniversity of BaghdadIbn Al-Haitham Journal for Pure and Applied Sciences1609-40422521-34072017-05-01253Possibility of Reducing the Thermal Conductivity of Ceramic Refractory MaterialsA. W. Watan The research work covers a study of the possibility of producing porous ceramic bodies as a thermal insulators by adding fired Dechla kaolinite (grog)to the same non burned kaolinite. Different weight percentage ranged between (0,15,25,35and40)from grog and sawdust passed through mesh 50 to Deuchla-clay kaolinit.Cylindrical shape samples (30mm diameter and 30mm height) were prepared by the semi-dry methed,moulding pressure was 50 N/mm 2 . After drying at 110 o c,the samples were burnet in the furnace at temperatures 900,950,1000,1050,and 1100 o c. The sawdust burnt out and leaves air spaces which contribute to the high thermal insulation value. The fired samples were investigated to determine bulk density , porosity, compressive strength and the thermal conductivity .It was found that the increase of grog ratio produces a decrease in bulk density ,compressive strength and thermal conductivity, but addition of sawdust to the samples produces decrease greater than when addition the grog https://jih.uobaghdad.edu.iq/index.php/j/article/view/586thermal insulator, bulk density , compressive strength,Porosity,thermal conductivity.
spellingShingle A. W. Watan
Possibility of Reducing the Thermal Conductivity of Ceramic Refractory Materials
Ibn Al-Haitham Journal for Pure and Applied Sciences
thermal insulator, bulk density , compressive strength,Porosity,thermal conductivity.
title Possibility of Reducing the Thermal Conductivity of Ceramic Refractory Materials
title_full Possibility of Reducing the Thermal Conductivity of Ceramic Refractory Materials
title_fullStr Possibility of Reducing the Thermal Conductivity of Ceramic Refractory Materials
title_full_unstemmed Possibility of Reducing the Thermal Conductivity of Ceramic Refractory Materials
title_short Possibility of Reducing the Thermal Conductivity of Ceramic Refractory Materials
title_sort possibility of reducing the thermal conductivity of ceramic refractory materials
topic thermal insulator, bulk density , compressive strength,Porosity,thermal conductivity.
url https://jih.uobaghdad.edu.iq/index.php/j/article/view/586
work_keys_str_mv AT awwatan possibilityofreducingthethermalconductivityofceramicrefractorymaterials