Temperature-dependent thermal properties of spark plasma sintered alumina
In this work, we report temperature-dependent thermal properties of alumina powder and bulk alumina consolidated by spark plasma sintering method. The properties were measured between room temperature and 250ºC using a thermal constants analyzer. Alumina powder had very low thermal properti...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
International Institute for the Science of Sintering, Beograd
2017-01-01
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| Series: | Science of Sintering |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-820X/2017/0350-820X1702117S.pdf |
| _version_ | 1818295191676649472 |
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| author | Saheb Nouari Hayat Umer |
| author_facet | Saheb Nouari Hayat Umer |
| author_sort | Saheb Nouari |
| collection | DOAJ |
| description | In this work, we report temperature-dependent thermal properties of alumina
powder and bulk alumina consolidated by spark plasma sintering method. The
properties were measured between room temperature and 250ºC using a thermal
constants analyzer. Alumina powder had very low thermal properties due to the
presence of large pores and absence of bonding between its particles. Fully
dense alumina with a relative density of 99.6 % was obtained at a sintering
temperature of 1400°C and a holding time of 10 min. Thermal properties were
found to mainly dependent on density. Thermal conductivity, thermal
diffusivity, and specific heat of the fully dense alumina were 34.44 W/mK,
7.62 mm2s-1, and 1.22 J/gK, respectively, at room temperature. Thermal
conductivity and thermal diffusivity decreased while specific heat increased
with the increase in temperature from room temperature to 250ºC. |
| first_indexed | 2024-12-13T03:43:43Z |
| format | Article |
| id | doaj.art-18d4f27057a746f7959c5debb7f641c4 |
| institution | Directory Open Access Journal |
| issn | 0350-820X 1820-7413 |
| language | English |
| last_indexed | 2024-12-13T03:43:43Z |
| publishDate | 2017-01-01 |
| publisher | International Institute for the Science of Sintering, Beograd |
| record_format | Article |
| series | Science of Sintering |
| spelling | doaj.art-18d4f27057a746f7959c5debb7f641c42022-12-22T00:00:52ZengInternational Institute for the Science of Sintering, BeogradScience of Sintering0350-820X1820-74132017-01-0149211712810.2298/SOS1702117S0350-820X1702117STemperature-dependent thermal properties of spark plasma sintered aluminaSaheb Nouari0Hayat Umer1King Fahd University of Petroleum and Minerals, Department of Mechanical Engineering, Dhahran, Saudi Arabia + King Fahd University of Petroleum and Minerals, Centre of Research Excellence in Nanotechnology, Dhahran, Saudi ArabiaKing Fahd University of Petroleum and Minerals, Department of Mechanical Engineering, Dhahran, Saudi ArabiaIn this work, we report temperature-dependent thermal properties of alumina powder and bulk alumina consolidated by spark plasma sintering method. The properties were measured between room temperature and 250ºC using a thermal constants analyzer. Alumina powder had very low thermal properties due to the presence of large pores and absence of bonding between its particles. Fully dense alumina with a relative density of 99.6 % was obtained at a sintering temperature of 1400°C and a holding time of 10 min. Thermal properties were found to mainly dependent on density. Thermal conductivity, thermal diffusivity, and specific heat of the fully dense alumina were 34.44 W/mK, 7.62 mm2s-1, and 1.22 J/gK, respectively, at room temperature. Thermal conductivity and thermal diffusivity decreased while specific heat increased with the increase in temperature from room temperature to 250ºC.http://www.doiserbia.nb.rs/img/doi/0350-820X/2017/0350-820X1702117S.pdfAluminaspark plasma sinteringthermal conductivitythermal diffusivityspecific heat |
| spellingShingle | Saheb Nouari Hayat Umer Temperature-dependent thermal properties of spark plasma sintered alumina Science of Sintering Alumina spark plasma sintering thermal conductivity thermal diffusivity specific heat |
| title | Temperature-dependent thermal properties of spark plasma sintered alumina |
| title_full | Temperature-dependent thermal properties of spark plasma sintered alumina |
| title_fullStr | Temperature-dependent thermal properties of spark plasma sintered alumina |
| title_full_unstemmed | Temperature-dependent thermal properties of spark plasma sintered alumina |
| title_short | Temperature-dependent thermal properties of spark plasma sintered alumina |
| title_sort | temperature dependent thermal properties of spark plasma sintered alumina |
| topic | Alumina spark plasma sintering thermal conductivity thermal diffusivity specific heat |
| url | http://www.doiserbia.nb.rs/img/doi/0350-820X/2017/0350-820X1702117S.pdf |
| work_keys_str_mv | AT sahebnouari temperaturedependentthermalpropertiesofsparkplasmasinteredalumina AT hayatumer temperaturedependentthermalpropertiesofsparkplasmasinteredalumina |