Effect of CO2 Laser on Glazed Zircon Surface Complemented by ZrO2 Oxide
In this paper, the effect of CO2 laser on glaze-dental Zirconia ceramics after adding ZrO2 nanoparticles to glaze is introduced, and its improvement methods are studied. Specimens have been prepared using CAD/CAM dental machines and sintered at 1530o-C. Then the surface was glazed with VITA glaze pl...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2021-03-01
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| Series: | Engineering and Technology Journal |
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| Online Access: | https://etj.uotechnology.edu.iq/article_169182_307d71395f1a8e868eaea37e897dae6d.pdf |
| _version_ | 1797336514418442240 |
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| author | Zahraa Salman Kadhim Hubeatir Shihab Zaidan |
| author_facet | Zahraa Salman Kadhim Hubeatir Shihab Zaidan |
| author_sort | Zahraa Salman |
| collection | DOAJ |
| description | In this paper, the effect of CO2 laser on glaze-dental Zirconia ceramics after adding ZrO2 nanoparticles to glaze is introduced, and its improvement methods are studied. Specimens have been prepared using CAD/CAM dental machines and sintered at 1530o-C. Then the surface was glazed with VITA glaze plus (5% and 10%) Nano ZrO2. A 15W continuous CO2 laser was used as the indicator power to irradiate the glaze layer. The main phase of the ceramic substrate is tetragonal Zirconia, and the alumina content in the corundum phase is a certain percentage. The appearance of the varnish on the ceramic substrate changes the X-ray diffraction pattern through the appearance of new phases, which changes the crystallite size and the percentage of lattice strain. The range of grain size measured by atomic force microscopy was 88.46 nm to 62.18nm. In addition, the surface roughness was changed due to the appearance of crystal cores and grain growth. In addition, the addition of ZrO2 and laser irradiation changed the residual stress on the surface, which was reflected in the hardness value increased from 575 kg/mm2 to 1215 kg/mm2 after the laser treatment with the addition of 5% ZrO2. Generally, in terms of the structure and hardness of the surface of the glaze layer, the addition of 5% ZrO2 is better than 10%. SEM tests also showed no cracks in the central part of the treated area. These characteristics increase hardness. |
| first_indexed | 2024-03-08T08:54:39Z |
| format | Article |
| id | doaj.art-9faae20f4b3146a6a0bb78ccfa616928 |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T08:54:39Z |
| publishDate | 2021-03-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-9faae20f4b3146a6a0bb78ccfa6169282024-02-01T07:17:19ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582021-03-01391B25226110.30684/etj.v39i1B.1552169182Effect of CO2 Laser on Glazed Zircon Surface Complemented by ZrO2 OxideZahraa Salman0Kadhim Hubeatir1Shihab Zaidan2Department of Laser Engineering and Electronic Optics, University of Technology - IraqDepartment of Laser Engineering and Electronic Optics, University of Technology - IraqDepartment of Applied Sciences, University of Technology - IraqIn this paper, the effect of CO2 laser on glaze-dental Zirconia ceramics after adding ZrO2 nanoparticles to glaze is introduced, and its improvement methods are studied. Specimens have been prepared using CAD/CAM dental machines and sintered at 1530o-C. Then the surface was glazed with VITA glaze plus (5% and 10%) Nano ZrO2. A 15W continuous CO2 laser was used as the indicator power to irradiate the glaze layer. The main phase of the ceramic substrate is tetragonal Zirconia, and the alumina content in the corundum phase is a certain percentage. The appearance of the varnish on the ceramic substrate changes the X-ray diffraction pattern through the appearance of new phases, which changes the crystallite size and the percentage of lattice strain. The range of grain size measured by atomic force microscopy was 88.46 nm to 62.18nm. In addition, the surface roughness was changed due to the appearance of crystal cores and grain growth. In addition, the addition of ZrO2 and laser irradiation changed the residual stress on the surface, which was reflected in the hardness value increased from 575 kg/mm2 to 1215 kg/mm2 after the laser treatment with the addition of 5% ZrO2. Generally, in terms of the structure and hardness of the surface of the glaze layer, the addition of 5% ZrO2 is better than 10%. SEM tests also showed no cracks in the central part of the treated area. These characteristics increase hardness.https://etj.uotechnology.edu.iq/article_169182_307d71395f1a8e868eaea37e897dae6d.pdfcad/cam؛ dental ceramics؛ co2laser؛ zirconia؛ glazing؛ residual stressgrain size |
| spellingShingle | Zahraa Salman Kadhim Hubeatir Shihab Zaidan Effect of CO2 Laser on Glazed Zircon Surface Complemented by ZrO2 Oxide Engineering and Technology Journal cad/cam؛ dental ceramics؛ co2laser؛ zirconia؛ glazing؛ residual stress grain size |
| title | Effect of CO2 Laser on Glazed Zircon Surface Complemented by ZrO2 Oxide |
| title_full | Effect of CO2 Laser on Glazed Zircon Surface Complemented by ZrO2 Oxide |
| title_fullStr | Effect of CO2 Laser on Glazed Zircon Surface Complemented by ZrO2 Oxide |
| title_full_unstemmed | Effect of CO2 Laser on Glazed Zircon Surface Complemented by ZrO2 Oxide |
| title_short | Effect of CO2 Laser on Glazed Zircon Surface Complemented by ZrO2 Oxide |
| title_sort | effect of co2 laser on glazed zircon surface complemented by zro2 oxide |
| topic | cad/cam؛ dental ceramics؛ co2laser؛ zirconia؛ glazing؛ residual stress grain size |
| url | https://etj.uotechnology.edu.iq/article_169182_307d71395f1a8e868eaea37e897dae6d.pdf |
| work_keys_str_mv | AT zahraasalman effectofco2laseronglazedzirconsurfacecomplementedbyzro2oxide AT kadhimhubeatir effectofco2laseronglazedzirconsurfacecomplementedbyzro2oxide AT shihabzaidan effectofco2laseronglazedzirconsurfacecomplementedbyzro2oxide |