Effects of incorporating natural minerals on production and bioactivity of bioactive glass ceramics
Two glass-ceramics composition were produced from natural minerals. Quartzes and feldspars were pre-selected on the basis of their purities studied by X-ray diffraction (XRD) and chemical analysis. Prepared compositions of glasses precursors were two different theoretical leucite (KAlSi2O6)/Bioglass...
| Authors: | , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2016 |
| Country: | Argentina |
| Institution: | Universidad Nacional de La Plata |
| Repository: | SEDICI (UNLP) |
| Language: | English |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/104362 |
| Online Access: | http://sedici.unlp.edu.ar/handle/10915/104362 |
| Access Level: | Open access |
| Keyword: | Ingeniería Química Bioactivity Glass ceramics Raw materials |
| Summary: | Two glass-ceramics composition were produced from natural minerals. Quartzes and feldspars were pre-selected on the basis of their purities studied by X-ray diffraction (XRD) and chemical analysis. Prepared compositions of glasses precursors were two different theoretical leucite (KAlSi2O6)/Bioglass 45S5 (L/Bg) ratios. Transformations of raw materials mixtures and glass precursors were studied by differential thermal analyses. On the basis of thermal analysis results, glass ceramics were produced and characterized by XRD. Glass-ceramics were composed of two major crystalline phases, leucite and sodium calcium silicate. Bioactivity tests were performed submerging the glass-ceramics into simulated body fluid (SBF) for different periods (1, 5 and 10 days). Bioactive behavior was monitored by XRD and scanning electron microscopy (SEM). Studied samples were found to be bioactive, in which hydroxyapatite layer was developed within 5 days of contact with SBF. |
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