The invention discloses a glass-ceramic composition, a slurry, and a method for manufacturing a dielectric ceramic component with high frequency. The glass-ceramic composition comprises 5-30 wt % of aluminum oxide and 70-95 wt % of BiZnBSiAl glass. The invention mixes the glass-ceramic composition with an organic carrier to make a slurry, processes the slurry into green body, and then densities the green body to obtain dielectric ceramic component with high frequency, which can be sintered and densified under low temperature. Accordingly, the product of quality factor and resonance frequency of the component can meet the requirements of high quality factor and dielectric constant for industries.
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