Effect of addition of SiO 2 and Al 2 O 3 on the dielectric properties of basalt glasses

AbstractThe present research focuses on the influence of SiO2 and Al2O3 additives on the structure and dielectric properties of basalt glasses. Upon the introduction of SiO2 and Al2O3, all the prepared basalt glasses were found to exhibit a non-crystalline nature. The initial dielectric constant of the basalt glass without the addition of SiO2 and Al2O3 was 7.893. However, as the content of SiO2 and Al2O3 increased, the dielectric constant of the basalt glasses initially decreased, but then started to rise. Remarkably, the lowest dielectric constant, achieved with the addition of 1 wt% Al2O3, was measured at 6.561. Similarly, the lowest dielectric constant, attained with the addition of 1 wt% SiO2, was recorded at 6.368. This value was lower than that produced by Al2O3 addition. These findings provide a new perspective on the dielectric properties of basalt glasses and continuous basalt fibers.Keywords: Basalt glassamorphousdielectric properties Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis study received financial support from multiple sources, including the National Natural Science Foundation of China (Grant No. 52201178), the Student Science and Technology Fund’s Scientific Research Project (KAY202310), the Natural Science Research Project of Colleges and Universities in Hebei Province (Grant No. QN2022005), and the Guide Local for Scientific and Technological Development of Hebei Provincial Department of Science and Technology (206Z1501G).