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A glass/ceramic composite using lead-free low melting glass (SiO2-B2O3-CaO-MgO glass) with Al2O3 fillers was investigated. X-ray diffraction analysis revealed that the anorthite and cordierite phase appeared in the sintered composites. The dilatometric analysis showed that the onset of shrinkage took place at ∼624°C for all the samples and the onset temperature was independent on the content of glass...
The effects of Bi 4 B 2 O 9 on the phase transitions, sinterability and microwave dielectric properties of Bi 3 NbO 7 ceramics were investigated. Densities around 96% theoretical could be achieved at 900°C for samples with up to 20wt% Bi 4 B 2 O 9 addition. Phase transitions of cubic→tetragonal→cubic with the increase of sintering temperature...
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