Abstract
To improve the sinterability of P2O5-added cordierite glass, lead borosilicate glass was adopted as a sintering aid. Various sintering temperatures and times were used to observe the effects of heat treatments on the sintering behavior of the cordierite-lead borosilicate glass. The flux effect of lead borosilicate glass aids the coalescence of cordierite glass particles, which promotes the densification. Phase transformation from cordierite glass to the high-temperature α-cordierite form is the major reaction during the sintering of cordierite-lead borosilicate glass. The dielectric constant of the sintered composites is determined by both the existing crystalline structure and the completeness of densification. The relationship between the volume fraction of lead borosilicate glass and the dielectric constant can be approximated by a linear equation.
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