Adhesiveness of TiO2 PVD coating on electropolished stainless steel 17–4 PH orthodontic bracket
Performance of stainless steel 17-4 PH as the orthodontic bracket can be improved by titanium dioxide (TiO _2 ) coating. In order to produce a good quality of the coating layer, the substrate had to be smooth and free from any contaminants. The electropolishing method was used to clean bracket’s sur...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2019-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ab2b65 |
| _version_ | 1797747173820989440 |
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| author | S Supriadi B Suharno N K Nugraha A O Yasinta Dhyah Annur |
| author_facet | S Supriadi B Suharno N K Nugraha A O Yasinta Dhyah Annur |
| author_sort | S Supriadi |
| collection | DOAJ |
| description | Performance of stainless steel 17-4 PH as the orthodontic bracket can be improved by titanium dioxide (TiO _2 ) coating. In order to produce a good quality of the coating layer, the substrate had to be smooth and free from any contaminants. The electropolishing method was used to clean bracket’s surface from oxides substances which formed during sintering by reducing its surface roughness. Bath temperature and electropolishing time were varied to 30 °C and 70 °C, for 15 and 25 min, respectively. Those differences in electropolishing condition would affect the final surface’s roughness of the substrate. The atmosphere during PVD was controlled using oxygen and argon gases with the flowing rate ratio of 10:90 sccm and 50:50 sccm, and these gases would affect TiO _2 coating mechanical properties. The lowest roughness of 0.99 μ m and the highest roughness of 2.85 μ m were obtained after electropolishing. The coating quality on the substrates with different roughness was assessed through coating adhesivity on the substrate by micro Vickers qualitatively. The results showed that the TiO _2 coating layer on the substrate with a lower roughness had better adhesivity rather than on the substrate with higher roughness. |
| first_indexed | 2024-03-12T15:48:18Z |
| format | Article |
| id | doaj.art-ce215adfd28641cd8efd66ab96db0d87 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:48:18Z |
| publishDate | 2019-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-ce215adfd28641cd8efd66ab96db0d872023-08-09T15:21:16ZengIOP PublishingMaterials Research Express2053-15912019-01-016909400310.1088/2053-1591/ab2b65Adhesiveness of TiO2 PVD coating on electropolished stainless steel 17–4 PH orthodontic bracketS Supriadi0https://orcid.org/0000-0001-8153-4036B Suharno1N K Nugraha2https://orcid.org/0000-0003-2479-6771A O Yasinta3Dhyah Annur4Mechanical Engineering Department, University of Indonesia , Depok 16424, IndonesiaMetallurgy and Materials Engineering Department, University of Indonesia , Depok 16424, IndonesiaMetallurgy and Materials Engineering Department, University of Indonesia , Depok 16424, IndonesiaMetallurgy and Materials Engineering Department, University of Indonesia , Depok 16424, IndonesiaMetallurgy and Materials Engineering Department, University of Indonesia , Depok 16424, IndonesiaPerformance of stainless steel 17-4 PH as the orthodontic bracket can be improved by titanium dioxide (TiO _2 ) coating. In order to produce a good quality of the coating layer, the substrate had to be smooth and free from any contaminants. The electropolishing method was used to clean bracket’s surface from oxides substances which formed during sintering by reducing its surface roughness. Bath temperature and electropolishing time were varied to 30 °C and 70 °C, for 15 and 25 min, respectively. Those differences in electropolishing condition would affect the final surface’s roughness of the substrate. The atmosphere during PVD was controlled using oxygen and argon gases with the flowing rate ratio of 10:90 sccm and 50:50 sccm, and these gases would affect TiO _2 coating mechanical properties. The lowest roughness of 0.99 μ m and the highest roughness of 2.85 μ m were obtained after electropolishing. The coating quality on the substrates with different roughness was assessed through coating adhesivity on the substrate by micro Vickers qualitatively. The results showed that the TiO _2 coating layer on the substrate with a lower roughness had better adhesivity rather than on the substrate with higher roughness.https://doi.org/10.1088/2053-1591/ab2b65SS 17–4 PHorthodontic bracketelectropolishPVDTiO2coating |
| spellingShingle | S Supriadi B Suharno N K Nugraha A O Yasinta Dhyah Annur Adhesiveness of TiO2 PVD coating on electropolished stainless steel 17–4 PH orthodontic bracket Materials Research Express SS 17–4 PH orthodontic bracket electropolish PVD TiO2 coating |
| title | Adhesiveness of TiO2 PVD coating on electropolished stainless steel 17–4 PH orthodontic bracket |
| title_full | Adhesiveness of TiO2 PVD coating on electropolished stainless steel 17–4 PH orthodontic bracket |
| title_fullStr | Adhesiveness of TiO2 PVD coating on electropolished stainless steel 17–4 PH orthodontic bracket |
| title_full_unstemmed | Adhesiveness of TiO2 PVD coating on electropolished stainless steel 17–4 PH orthodontic bracket |
| title_short | Adhesiveness of TiO2 PVD coating on electropolished stainless steel 17–4 PH orthodontic bracket |
| title_sort | adhesiveness of tio2 pvd coating on electropolished stainless steel 17 4 ph orthodontic bracket |
| topic | SS 17–4 PH orthodontic bracket electropolish PVD TiO2 coating |
| url | https://doi.org/10.1088/2053-1591/ab2b65 |
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