Thermal conductivity study of different engobed ceramic brick
Abstract The thermal conductivity of engobed building ceramics was studied as a function of their microstructure. The following thermal conductivity coefficients of the samples were determined: clinker bricks with 5% water absorption - 1.04 W/(m·K) and facing bricks (ordinary) with 12% water absorpt...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Cerâmica
2024-10-01
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| Series: | Cerâmica |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132024000100310&lng=en&tlng=en |
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| _version_ | 1846169900218843136 |
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| author | О. Khomenko N. Sribniak V. Ivchenko А. Ujma М. Pomada |
| author_facet | О. Khomenko N. Sribniak V. Ivchenko А. Ujma М. Pomada |
| author_sort | О. Khomenko |
| collection | DOAJ |
| description | Abstract The thermal conductivity of engobed building ceramics was studied as a function of their microstructure. The following thermal conductivity coefficients of the samples were determined: clinker bricks with 5% water absorption - 1.04 W/(m·K) and facing bricks (ordinary) with 12% water absorption - 0.48 W/(m·K) (ignoring the voids in the samples). A comparison of the thermal conductivity of brick samples of uniform thickness without engobe and with engobe showed that the latter had a slight increase in thermal conductivity of 0.3% due to forming a denser outer layer on its surface with 2.0-0.3% water absorption. However, as the engobe coating is applied as an additional layer on the top of the ceramic bricks and the product has a greater thickness, the heat flow through the engobed bricks is 0.1-0.2 % lower. The results can be applied to technologies for achieving energy-efficient decorative and protective coatings for building ceramics. |
| format | Article |
| id | doaj-art-c54d72311ba948a8809b15112430aaf3 |
| institution | Kabale University |
| issn | 1678-4553 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Associação Brasileira de Cerâmica |
| record_format | Article |
| series | Cerâmica |
| spelling | doaj-art-c54d72311ba948a8809b15112430aaf32024-11-12T07:43:11ZengAssociação Brasileira de CerâmicaCerâmica1678-45532024-10-017010.1590/zaoy1947Thermal conductivity study of different engobed ceramic brickО. KhomenkoN. SribniakV. IvchenkoА. UjmaМ. Pomadahttps://orcid.org/0000-0002-3753-3033Abstract The thermal conductivity of engobed building ceramics was studied as a function of their microstructure. The following thermal conductivity coefficients of the samples were determined: clinker bricks with 5% water absorption - 1.04 W/(m·K) and facing bricks (ordinary) with 12% water absorption - 0.48 W/(m·K) (ignoring the voids in the samples). A comparison of the thermal conductivity of brick samples of uniform thickness without engobe and with engobe showed that the latter had a slight increase in thermal conductivity of 0.3% due to forming a denser outer layer on its surface with 2.0-0.3% water absorption. However, as the engobe coating is applied as an additional layer on the top of the ceramic bricks and the product has a greater thickness, the heat flow through the engobed bricks is 0.1-0.2 % lower. The results can be applied to technologies for achieving energy-efficient decorative and protective coatings for building ceramics.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132024000100310&lng=en&tlng=enceramic brickthermal conductivity coefficientwater absorptionhardnessphase compositionfiringmicrostructuredurabilityspecific heat flow |
| spellingShingle | О. Khomenko N. Sribniak V. Ivchenko А. Ujma М. Pomada Thermal conductivity study of different engobed ceramic brick Cerâmica ceramic brick thermal conductivity coefficient water absorption hardness phase composition firing microstructure durability specific heat flow |
| title | Thermal conductivity study of different engobed ceramic brick |
| title_full | Thermal conductivity study of different engobed ceramic brick |
| title_fullStr | Thermal conductivity study of different engobed ceramic brick |
| title_full_unstemmed | Thermal conductivity study of different engobed ceramic brick |
| title_short | Thermal conductivity study of different engobed ceramic brick |
| title_sort | thermal conductivity study of different engobed ceramic brick |
| topic | ceramic brick thermal conductivity coefficient water absorption hardness phase composition firing microstructure durability specific heat flow |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132024000100310&lng=en&tlng=en |
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