Chemical Durability, Structure Properties and Bioactivity of Glasses 48P<SUB>2</SUB>O<SUB>5</SUB>-30CaO-(22−x)Na<SUB>2</SUB>O-xTiO<SUB>2</SUB>(With 0 <x ≤ 3;mol%)

作     者：Yassine Er-Rouissi Sara Aqdim Abdeslam El Bouari Fouzia Hmimid Said Aqdim Yassine Er-Rouissi;Sara Aqdim;Abdeslam El Bouari;Fouzia Hmimid;Said Aqdim

作者机构：Faculty of Sciences Laboratory of Materials Engineering for Environment and Valorization Hassan II University Ain Chock Casablanca Morocco Faculty of Sciences Ben-M’sik Laboratory Physical-Chemistry of Applied Materials Hassan II University Casablanca Morocco Department of Biology Faculty of Science Laboratory Health & Environment Hassan II University Ain Chock Casablanca Morocco Department of Chemistry Faculty of Science Mineral Chemistry Laboratory Hassan II University Ain Chock Casablanca Morocco 

出 版 物：《Advances in Materials Physics and Chemistry》 (材料物理与化学进展（英文）)

年 卷 期：2020年第10卷第12期

页      面：305-318页

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

主　　题：Chemical Durability Phosphate Glasses Titan Oxide Bioactivity SBF 

摘      要：Phosphate glasses of composition 48P2O5-30CaO-(22−x)Na2O-xTiO2 (with 0 C ± 20°C. The chemical durability of these glasses shows an improvement when the TiO2 content varies from 0 to 2 mol%. The measurements of differential thermal analysis and density, both, indicate the increase of the glass transition temperature and the density. The increase of Tg leads to an improvement of glass rigidity. X-ray diffraction analysis of the glasses annealed at 650°C for 48 h, indicates the appearance of a mixture of metaphosphate and pyrophosphate phases when the TiO2 content varies from 0 to 2 mol%, the last become majority when the TiO2 content rich 2 mol%. Nevertheless, when the TiO2 content exceeds 2 mol%, the analysis, both, by infrared spectroscopy and X-ray diffraction, reveals a radical change of structure with the formation of majorities isolated orthophosphate groups. SEM micrographs illustrated that the number of crystallites increased in the glass network when the TiO2 content increased at the expense of the Na2