Effect of sintering treatment time on the sintering behaviour and thermal shock resistance of Li2O-Al2O3-SiO2 glass-ceramics
In order to determine the correlation of flexural strength and thermal shock resistance properties, the sintering behavior of Li2O-Al2O3-SiO2 (LAS) glass-ceramics at different sintering treatment times and the effect of thermal shock cycles on LAS glass-ceramics were investigated. The LAS glass-cera...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-04-01
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| Series: | Journal of Asian Ceramic Societies |
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| Online Access: | http://dx.doi.org/10.1080/21870764.2021.1896094 |
| _version_ | 1818670043159855104 |
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| author | Husniyah Aliyah Lutpi Hasmaliza Mohamad Tuti Katrina Abdullah Hamisah Ismail |
| author_facet | Husniyah Aliyah Lutpi Hasmaliza Mohamad Tuti Katrina Abdullah Hamisah Ismail |
| author_sort | Husniyah Aliyah Lutpi |
| collection | DOAJ |
| description | In order to determine the correlation of flexural strength and thermal shock resistance properties, the sintering behavior of Li2O-Al2O3-SiO2 (LAS) glass-ceramics at different sintering treatment times and the effect of thermal shock cycles on LAS glass-ceramics were investigated. The LAS glass-ceramics were isothermally treated at 1100°C from 1.5 to 4.5 h. Phase transformation of major crystalline of β-spodumene and minor crystalline of ZrTiO4 revealed unchanged as sintering treatment time increased. The physical properties of LAS glass-ceramics that were sintered for 3.5 h demonstrated an increased density (2.45 g/cm3) and less porosity percentage (0.62%). The prolonged sintering treatment affected the microstructure whereby the mean grain size increased from 0.55 to 0.67 µm which also demonstrated the increase of microhardness in the range between 3.90 and 5.47 GPa. The flexural strength of LAS glass-ceramics revealed an enhancement of 158 MPa when sintered for 3.5 h. The thermal shock resistance properties were assessed at 500°C from one to seven cycles via thermal shock tests. After four thermal shock cycles, LAS glass-ceramics showed an improvement of 82% of residual strength from its original strength, due to a decrease in the formation of pores and an increase in the crystallinity and percentage of β-spodumene. |
| first_indexed | 2024-12-17T07:01:50Z |
| format | Article |
| id | doaj.art-244d30c2a6e24d698c43635af1799e02 |
| institution | Directory Open Access Journal |
| issn | 2187-0764 |
| language | English |
| last_indexed | 2024-12-17T07:01:50Z |
| publishDate | 2021-04-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Ceramic Societies |
| spelling | doaj.art-244d30c2a6e24d698c43635af1799e022022-12-21T21:59:14ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642021-04-010011210.1080/21870764.2021.18960941896094Effect of sintering treatment time on the sintering behaviour and thermal shock resistance of Li2O-Al2O3-SiO2 glass-ceramicsHusniyah Aliyah Lutpi0Hasmaliza Mohamad1Tuti Katrina Abdullah2Hamisah Ismail3Universiti Sains MalaysiaUniversiti Sains MalaysiaUniversiti Sains MalaysiaUniversiti Sains MalaysiaIn order to determine the correlation of flexural strength and thermal shock resistance properties, the sintering behavior of Li2O-Al2O3-SiO2 (LAS) glass-ceramics at different sintering treatment times and the effect of thermal shock cycles on LAS glass-ceramics were investigated. The LAS glass-ceramics were isothermally treated at 1100°C from 1.5 to 4.5 h. Phase transformation of major crystalline of β-spodumene and minor crystalline of ZrTiO4 revealed unchanged as sintering treatment time increased. The physical properties of LAS glass-ceramics that were sintered for 3.5 h demonstrated an increased density (2.45 g/cm3) and less porosity percentage (0.62%). The prolonged sintering treatment affected the microstructure whereby the mean grain size increased from 0.55 to 0.67 µm which also demonstrated the increase of microhardness in the range between 3.90 and 5.47 GPa. The flexural strength of LAS glass-ceramics revealed an enhancement of 158 MPa when sintered for 3.5 h. The thermal shock resistance properties were assessed at 500°C from one to seven cycles via thermal shock tests. After four thermal shock cycles, LAS glass-ceramics showed an improvement of 82% of residual strength from its original strength, due to a decrease in the formation of pores and an increase in the crystallinity and percentage of β-spodumene.http://dx.doi.org/10.1080/21870764.2021.1896094β-spodumenelithium aluminosilicateflexural strengththermal shock resistancethermal shock cycles |
| spellingShingle | Husniyah Aliyah Lutpi Hasmaliza Mohamad Tuti Katrina Abdullah Hamisah Ismail Effect of sintering treatment time on the sintering behaviour and thermal shock resistance of Li2O-Al2O3-SiO2 glass-ceramics Journal of Asian Ceramic Societies β-spodumene lithium aluminosilicate flexural strength thermal shock resistance thermal shock cycles |
| title | Effect of sintering treatment time on the sintering behaviour and thermal shock resistance of Li2O-Al2O3-SiO2 glass-ceramics |
| title_full | Effect of sintering treatment time on the sintering behaviour and thermal shock resistance of Li2O-Al2O3-SiO2 glass-ceramics |
| title_fullStr | Effect of sintering treatment time on the sintering behaviour and thermal shock resistance of Li2O-Al2O3-SiO2 glass-ceramics |
| title_full_unstemmed | Effect of sintering treatment time on the sintering behaviour and thermal shock resistance of Li2O-Al2O3-SiO2 glass-ceramics |
| title_short | Effect of sintering treatment time on the sintering behaviour and thermal shock resistance of Li2O-Al2O3-SiO2 glass-ceramics |
| title_sort | effect of sintering treatment time on the sintering behaviour and thermal shock resistance of li2o al2o3 sio2 glass ceramics |
| topic | β-spodumene lithium aluminosilicate flexural strength thermal shock resistance thermal shock cycles |
| url | http://dx.doi.org/10.1080/21870764.2021.1896094 |
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