...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Synthesis and characterization of calcium phosphate based bioactive quaternary P2O5-CaO-Na2O-K2O glasses
【24h】

Synthesis and characterization of calcium phosphate based bioactive quaternary P2O5-CaO-Na2O-K2O glasses

机译：磷酸钙基生物活性季铵型P2O5-CaO-Na2O-K2O玻璃的合成与表征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Calcium phosphate based bioactive quaternary glass systems P2O5-CaO-Na2O-K2O were prepared by melt growth technique. Glasses were prepared in five different compositions by fixing P2O5 at 47 mol% and CaO at 30.5 mol% and by varying the K2O and Na2O concentrations. The structural properties of the glasses are analyzed using X-ray diffraction (XRD) studies and scanning electron microscopy (SEM) studies; and the composition of the glasses are studied using energy dispersive X-ray spectrum (EDS). The microhardness of the glass systems are studied by Vickers hardness measurements and the bioactivity of the glasses are studied using in vitro study. The thermal properties have been examined by means of thermogravimetric analysis (TGA) and differential thermal analysis (DTA). The ultrasonic velocity measurements show that the addition of K2O contents produces non-bridging oxygen ion and hence weaken of the glass structure. The weakening of the glass structure reduces the ultrasonic velocity and hence an increase in attenuation. (C) 2008 Elsevier B.V. All rights reserved.
机译：通过熔融生长技术制备了磷酸钙基生物活性四元玻璃体系P2O5-CaO-Na2O-K2O。通过将47％（摩尔）的P2O5和30.5％（摩尔）的CaO固定，并改变K2O和Na2O的浓度，可以制成五种不同的玻璃。使用X射线衍射（XRD）研究和扫描电子显微镜（SEM）研究分析了玻璃的结构特性;使用能量色散X射线光谱（EDS）研究了玻璃的成分。通过维氏硬度测量来研究玻璃系统的显微硬度，并使用体外研究来研究玻璃的生物活性。通过热重分析（TGA）和差热分析（​​DTA）检查了热性能。超声波速度测量结果表明，添加的K2O含量会产生不桥接的氧离子，从而削弱玻璃结构。玻璃结构的弱化降低了超声波速度，因此降低了衰减。 （C）2008 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号