Homogeneity of Lithium Metasilicate-Copper Oxide Glass-Ceramics by Weibull Modulus
The work idea is finding out how the homogeneity of dielectric strength property in lithium metasilicate glass-ceramic with addition weight percentage increasing of CuO. It prepared four specimens, one without CuO addition lithium metasilicate glass-ceramic LSGC and consists of Li<sub>2</su...
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| Format: | Article |
| Language: | English |
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University of Technology, Baghdad
2021-06-01
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| Series: | Journal of Applied Sciences and Nanotechnology |
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| Online Access: | https://jasn.uotechnology.edu.iq/article_11733_812c0772f1ac05a365eaa3fca5971b55.pdf |
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| author | Duraid Mahdi Shihab Zaidan Muthafar Al-Hilli |
| author_facet | Duraid Mahdi Shihab Zaidan Muthafar Al-Hilli |
| author_sort | Duraid Mahdi |
| collection | DOAJ |
| description | The work idea is finding out how the homogeneity of dielectric strength property in lithium metasilicate glass-ceramic with addition weight percentage increasing of CuO. It prepared four specimens, one without CuO addition lithium metasilicate glass-ceramic LSGC and consists of Li<sub>2</sub>O-SiO<sub>2</sub> binary system glass batch with weight percentages 45 wt% Li<sub>2</sub>O and 55 wt% SiO<sub>2</sub>. It added to the binary system CuO with different weight percentages to prepare the rest three specimens in front of the Li<sub>2</sub>O weight percentage decreasing as 1 wt% LC1S, 2 wt% LC2S, and 3 wt% LC3S. The glass batches for four specimens were mixed and used melting-quenching method at temperature of 1195<sup>O</sup>C for soaking time 2 hrs. It used platinum crucible (90 Pt-10 Rh) and immediately cooled in the cold water of temperature at 3<sup>O</sup>C. This process was repeated twice for all specimens and the produced frit was milled by agate mortar. Addition of P<sub>2</sub>O<sub>5</sub> and TiO<sub>2</sub> as nucleating agents with weight percentage 3 wt% P<sub>2</sub>O<sub>5</sub> and 1 wt% TiO<sub>2</sub> and prepared compact discs with dimensions 18 diameter × 2.58 thickness mm by the used biaxial hydraulic press with 5 ton for 30 s under pressure. The heat treatment was done for all glass batch compact discs of temperature at 950<sup>O</sup>C for 6 hrs as soaking time and breakdown voltage test was done executed 10 different spots in each specimen and Weibull modulus was used to know the homogeneity of dielectric strength property and coincided with Field Emission Scanning Electron Microscopes (FE-SEM) images. It got a good match between Weibull modulus results and FESEM images which indicating that Weibull modulus is the active tool that can be used for knowing the homogeneity of any property. The high average dielectric strength is 9.116 kV/mm for LC1S while the lower average dielectric strength is 7.101 kV/mm for LSGC and this back to more homogeneity and fewer defects in LC1S than LSGC. |
| first_indexed | 2024-12-10T16:42:19Z |
| format | Article |
| id | doaj.art-bf42389daeec4589896d5f9f05bdbbd2 |
| institution | Directory Open Access Journal |
| issn | 2788-6867 |
| language | English |
| last_indexed | 2024-12-10T16:42:19Z |
| publishDate | 2021-06-01 |
| publisher | University of Technology, Baghdad |
| record_format | Article |
| series | Journal of Applied Sciences and Nanotechnology |
| spelling | doaj.art-bf42389daeec4589896d5f9f05bdbbd22022-12-22T01:41:10ZengUniversity of Technology, BaghdadJournal of Applied Sciences and Nanotechnology2788-68672021-06-0112273610.53293/jasn.2021.3534.102711733Homogeneity of Lithium Metasilicate-Copper Oxide Glass-Ceramics by Weibull ModulusDuraid Mahdi0Shihab Zaidan1Muthafar Al-Hilli2Matertial Science Division, Department of Applied Sciences, University of Technology, Baghdad – IraqMatertial Science Division, Department of Applied Sciences, University of Technology, Baghdad – IraqDepartment of Physics, College of Science, University of Baghdad – IraqThe work idea is finding out how the homogeneity of dielectric strength property in lithium metasilicate glass-ceramic with addition weight percentage increasing of CuO. It prepared four specimens, one without CuO addition lithium metasilicate glass-ceramic LSGC and consists of Li<sub>2</sub>O-SiO<sub>2</sub> binary system glass batch with weight percentages 45 wt% Li<sub>2</sub>O and 55 wt% SiO<sub>2</sub>. It added to the binary system CuO with different weight percentages to prepare the rest three specimens in front of the Li<sub>2</sub>O weight percentage decreasing as 1 wt% LC1S, 2 wt% LC2S, and 3 wt% LC3S. The glass batches for four specimens were mixed and used melting-quenching method at temperature of 1195<sup>O</sup>C for soaking time 2 hrs. It used platinum crucible (90 Pt-10 Rh) and immediately cooled in the cold water of temperature at 3<sup>O</sup>C. This process was repeated twice for all specimens and the produced frit was milled by agate mortar. Addition of P<sub>2</sub>O<sub>5</sub> and TiO<sub>2</sub> as nucleating agents with weight percentage 3 wt% P<sub>2</sub>O<sub>5</sub> and 1 wt% TiO<sub>2</sub> and prepared compact discs with dimensions 18 diameter × 2.58 thickness mm by the used biaxial hydraulic press with 5 ton for 30 s under pressure. The heat treatment was done for all glass batch compact discs of temperature at 950<sup>O</sup>C for 6 hrs as soaking time and breakdown voltage test was done executed 10 different spots in each specimen and Weibull modulus was used to know the homogeneity of dielectric strength property and coincided with Field Emission Scanning Electron Microscopes (FE-SEM) images. It got a good match between Weibull modulus results and FESEM images which indicating that Weibull modulus is the active tool that can be used for knowing the homogeneity of any property. The high average dielectric strength is 9.116 kV/mm for LC1S while the lower average dielectric strength is 7.101 kV/mm for LSGC and this back to more homogeneity and fewer defects in LC1S than LSGC.https://jasn.uotechnology.edu.iq/article_11733_812c0772f1ac05a365eaa3fca5971b55.pdfbinary li2o-sio2 systemlithium metasilicate glass-ceramicdielectric strengthweibull modulus |
| spellingShingle | Duraid Mahdi Shihab Zaidan Muthafar Al-Hilli Homogeneity of Lithium Metasilicate-Copper Oxide Glass-Ceramics by Weibull Modulus Journal of Applied Sciences and Nanotechnology binary li2o-sio2 system lithium metasilicate glass-ceramic dielectric strength weibull modulus |
| title | Homogeneity of Lithium Metasilicate-Copper Oxide Glass-Ceramics by Weibull Modulus |
| title_full | Homogeneity of Lithium Metasilicate-Copper Oxide Glass-Ceramics by Weibull Modulus |
| title_fullStr | Homogeneity of Lithium Metasilicate-Copper Oxide Glass-Ceramics by Weibull Modulus |
| title_full_unstemmed | Homogeneity of Lithium Metasilicate-Copper Oxide Glass-Ceramics by Weibull Modulus |
| title_short | Homogeneity of Lithium Metasilicate-Copper Oxide Glass-Ceramics by Weibull Modulus |
| title_sort | homogeneity of lithium metasilicate copper oxide glass ceramics by weibull modulus |
| topic | binary li2o-sio2 system lithium metasilicate glass-ceramic dielectric strength weibull modulus |
| url | https://jasn.uotechnology.edu.iq/article_11733_812c0772f1ac05a365eaa3fca5971b55.pdf |
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