广东工业大学学报 ›› 2008, Vol. 25 ›› Issue (2): 6-8.

• 综合研究 • 上一篇    下一篇

反应物浓度对液相合成Al2O3-SiO2-CaF2-P2O5系粉体特性的影响

  

  1. 广东工业大学材料与能源学院; 广东工业大学材料与能源学院 广东广州510006; 广东广州510006;
  • 出版日期:2008-06-01 发布日期:2008-06-01
  • 基金资助:

    广东省自然科学基金资助项目(020147)

The Influences of Reactant Concentration on the Characteristics of Al2O3-SiO2-CaF2-P2O5 Powder by Liquid Synthesis

  1. Faculty of Material and Energy,Guangdong University of Technology,Guangzhou 510006,China
  • Online:2008-06-01 Published:2008-06-01

摘要: 选用AlCl3、Na2SiO3、CaCl2、NaF和Na5P3O10作为初始反应物,采用液相沉淀法合成了Al2O3-SiO2-CaF2-P2O5系玻璃粉体;通过XRD、EDAX和TEM等手段,分析了反应物浓度对液相合成Al2O3-SiO2-CaF2-P2O5系玻璃粉体特性的影响.结果表明,反应物浓度对粉体的化学组成、结晶状态均无明显影响,各粉体均是含有O、F、Al、Si、Ca、P元素的非晶态的近球形纳米颗粒.但反应物浓度对粉体的分散性能、颗粒大小有影响,随着反应物浓度的提高,粉体团聚现象加剧,分散性降低,粉体颗粒大小略微减小,粒子在20~60 nm.

关键词: 液相合成; Al2O3-SiO2-CaF2-P2O5 玻璃; 反应物浓度;

Abstract: Al2O3-SiO2-CaF2-P2O5 glass powder was prepared by liquid synthesis with AlCl3、Na2SiO3、CaCl2、NaF and Na5P3O10 as starting-reagents.The influences of reagents concentration on characteristics of the powders were studied by XRD、EDAX and TEM methods.The results show that the reactant concentration has little effect on the chemical composition and crystal state of the powders,which are amorphous compounds containing O、F、Al、Si、Ca、P atoms and constituted by near spheroidic nano particles,but the reacta...

Key words: liquid phase synthesis; Al2O3-SiO2-CaF2-P2O5; reactant concentration;

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