Preparation of Forsterite by Solid State Synthesis Process and its Dielectric Properties

Fei Shi; Peng Cheng Du; Jing Xiao Liu; Ji Wei Wu; Chun Yuan Luo

doi:10.4028/www.scientific.net/AMR.534.110

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 534Preparation of Forsterite by Solid State Synthesis...

Preparation of Forsterite by Solid State Synthesis Process and its Dielectric Properties

Abstract:

Using basic magnesium carbonate (Mg(OH)₂•4MgCO₃•6H₂O) and SiO₂ as raw materials, forsterite (Mg₂SiO₄) was prepared by solid state synthesis process. The optimal process for synthesizing Mg₂SiO₄ was obtained by adjusting Mg/Si molar ratio and sintering temperature. The crystal phase of the obtained Mg₂SiO₄ powder was determined by X-ray diffraction (XRD). The results indicate that the single-phase Mg₂SiO₄ powder can be obtained when the mixtures with Mg/Si molar ratio of 2.05～2.01 were sintered at 1350°C for 3h in the air. The as-prepared Mg₂SiO₄ ceramic samples which were sintered at 1300～1360°C showed better dielectric properties with εr=7.4 and tanδ =7.5×10^-4.

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Periodical:

Advanced Materials Research (Volume 534)

Pages:

110-113

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.534.110

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Online since:

June 2012

Authors:

Fei Shi, Peng Cheng Du, Jing Xiao Liu, Ji Wei Wu, Chun Yuan Luo

Keywords:

Dielectric Property, Forsterite, Mg/Si Ratio, Mg₂SiO₄, Solid State Synthesis

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