Study on the Dielectric Properties of Phosphoric Acid-Based Geopolymers

Abstract:

The phosphoric acid-based geopolymers were synthesized using chemosynthetic Al2O3-2SiO2 and phosphoric acid at ambient temperature, curing for 28d at room temperature. The influence of the water from the geopolymer materials on the dielectric properties was investigated. The phase’s transformation was measured by XRD. The amorphous SiO2 from unreacted particles transformed to quartz crystal at 950 °C when exposure to 1350 °C, some mulite appeared, however, the dielectric properties change a little. After the geopolymer materials were heated at 350 °C, its dielectric loss could depress down to lower level of 10-3.

• Periodical: Materials Science Forum (Volumes 663-665)
• Pages: 538-541
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.663-665.538
• Online since: November 2010
• Authors: Le Ping Liu, Xue Min Cui, Yan He, Jun Li Yu
• Keywords: Amorphous SiO₂, Dielectric Property, Geopolymer, Phosphoric Acid

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