Sol–gel processing of calcium hydroxyapatite thin films on silicon nitride (Si3N4) substrate
| Autor: | Pranas Usinskas, Julius Maminskas, Aivaras Kareiva, G. Niaura, Zivile Stankeviciute, Gintaras Juodzbalys |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
02 engineering and technology Substrate (electronics) 010402 general chemistry 01 natural sciences Dip-coating Polyvinyl alcohol Biomaterials Contact angle chemistry.chemical_compound Materials Chemistry medicine Thin film Sol-gel technology industry and agriculture General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Electronic Optical and Magnetic Materials Chemical engineering chemistry Silicon nitride Triethanolamine Ceramics and Composites 0210 nano-technology medicine.drug |
| Zdroj: | Journal of Sol-Gel Science and Technology. 83:268-274 |
| ISSN: | 1573-4846 0928-0707 |
| Popis: | Calcium hydroxyapatite (Ca10(PO4)6(OH)2, CHAp) films were obtained on silicon nitride (Si3N4) substrate by a sol–gel method using a dip-coating technique. In the sol–gel process, ethylendiamintetraacetic acid and 1,2-ethandiol, triethanolamine, and polyvinyl alcohol were used as complexing agents and gel network forming agents, respectively. Calcium acetate monohydrate was used as Ca source. The samples were annealed at 650 °C for 5 h in air after each dip-coating procedure which was repeated 10, 20, and 30 times. The coatings were characterized using X-ray diffraction, scanning electron microscopy, atomic force microscopy, Raman spectroscopy, and contact angle measurements. Monophasic CHAp layers on silicon nitride (Si3N4) substrate were fabricated and characterized for the first time to the best our knowledge. |
| Databáze: | OpenAIRE |
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