Effect of Fe₂O₃ Concentration on the Properties of Basalt Glasses
2022
Chen, Meirong | Liu, Jianxun | Wu, Zhishen
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 (Vₘ), 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.
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