Effect of Fe₂O₃ Concentration on the Properties of Basalt Glasses

ABSTRACT

Basalt fiber as a type of reinforced material has been widely used in fiber-reinforced polymer (FRP) composites. Iron oxide (Fe₂O₃) has a great influence on the thermal and elastic properties of basalt fiber. In this study, ultrabasic, basic, and intermediate basalt rocks were chosen as raw materials and the dependence of Fe₂O₃ content variations on the properties of basalt glass was explored. Results showed that the density, molar volume (V_m), and oxygen packing density (OPD) of basalt glasses increased with the increase of Fe₂O₃ content. The viscosity, as well as crystallization behavior, is dominated by Fe₂O₃ content. Besides, the addition of Fe₂O₃ contributed to increasing the elastic modulus and hardness of basalt glasses.

摘要

摘要:玄武岩纤维作为一种增强材料，在纤维增强聚合物(FRP)复合材料中得到了广泛的应用. 氧化铁(Fe2O3)对玄武岩纤维的热弹性性能有很大的影响. 本研究以超基性玄武岩、碱性玄武岩和中间玄武岩为原料，探讨了Fe2O3含量变化对玄武岩玻璃性能的影响. 结果表明，随着Fe2O3含量的增加，玄武岩玻璃的密度、摩尔体积(Vm)和氧填充密度(OPD)均增大. 其粘度和结晶行为受Fe2O3含量的影响. 此外，Fe2O3的加入有助于提高玄武岩玻璃的弹性模量和硬度.

KEYWORDS:

• Basalt glass
• iron oxide
• thermal properties
• elastic property

关键词:

• 玄武岩玻璃
• 氧化铁
• 热性能
• 弹性性质

Additional information

Funding

This work was supported by the the National Key R&D Program of China under Grant [2017YFB0310904]; the Fundamental Research Funds for the Central Universities under Grant [2242018K41044].