(1. 湖州師范學(xué)院 生命科學(xué)學(xué)院，湖州 313000；2. 佳木斯大學(xué) 生物醫(yī)學(xué)材料省級(jí)重點(diǎn)實(shí)驗(yàn)室，佳木斯 154007)
摘 要:
關(guān)鍵字: Ag2O-CaO-Fe2O3-SiO2玻璃；微晶陶瓷；析晶活化能
（1. School of Life Science, Huzhou Teachers College, Huzhou 313000, China;2. Provincial Key Laboratory of Biomaterials, Jiamusi University, Jiamusi 154007, China）
Abstract:The Ag2O-CaO-Fe2O3-SiO2 glass ceramics were prepared by sol-gel method and crystallization process. The influence of ZnO content on the crystallization of Ag2O-CaO-Fe2O3-SiO2 glasses was investigated by DSC, SEM and XRD. And the value of activation energy was calculated. The result shows that the influence of ZnO content on the crystallization is remarkable. The crystallization temperature of glass decreases with increasing ZnO contet. And the activation energy for crystal growth is the lowest (E=324.522 kJ/mol) when the content of ZnO in glass is 5%. The major crystalline phases of Ag2O-CaO-Fe2O3-SiO2 are magnetite and wollastonite. The crystalline phases of Ag2O-CaO- Fe2O3-SiO2 glass ceramics added with ZnO do not altered, while the crystal growing style only alters a little.
Key words: Ag2O-CaO-Fe2O3-SiO2 glasses; glass ceramic; crystallization activative energy
