Densification Behavior and Dielectric Properties of CaO-B2O3-SiO2 System Glass-Ceramics Containing ZrO2

Jin Zhuang Liu; Zhong Hua Yao; Nuo Xin Xu; Qi Long Zhang; Hui Yang

doi:10.4028/www.scientific.net/KEM.697.253

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 697Densification Behavior and Dielectric Properties...

Densification Behavior and Dielectric Properties of CaO-B₂O₃-SiO₂ System Glass-Ceramics Containing ZrO₂

Abstract:

CaO–B₂O₃–SiO₂ (CBS) glass-ceramics containing ZrO₂were prepared by conventional melting and heat treated crystallization method. The effects of ZrO₂ on the crystallization behavior, sintering characterization and dielectric properties of the glass-ceramics were analyzed respectively. The results indicated that ZrO₂ addition can improve the crystallization and densification of CBS glass-ceramics. The major crystallized phase of sample with≥7wt% ZrO₂ was cyclowollastonite (α-CaSiO₃).It is found that the optimal sintering condition for the glass-ceramics is 770^oC for 30min. CBS glass ceramics sample with 7wt% ZrO₂ shows the best sintering characterization and dielectric properties (ρ= 2.71g/cm³, ε_r ≈8.8,tan δ=2.36×10^-3 at 1 MHz), which is supposed to be suitable for LTCC application.

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Key Engineering Materials (Volume 697)

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253-256

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https://doi.org/10.4028/www.scientific.net/KEM.697.253

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Online since:

July 2016

Authors:

Jin Zhuang Liu, Zhong Hua Yao, Nuo Xin Xu, Qi Long Zhang*, Hui Yang

Keywords:

Dielectric Constant, Dielectric Loss, Glass-Ceramics, Zro₂

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