The techniques of melt-quenching have been used to generate 53B2O3—2NaF—27PbO – $$(20-x)$$ BaO— $$x$$ La2O3 $$(0\le x \ge 15) glass system$$ . XRD patterns established the amorphous character samples. There is a clear evidence role modifier in network. thermal characteristics identified increase with an content. Increasing increases linear and non-linear optical bandgap energy Urbach energy. By...

In this paper, La2O3-B2O3-CaO (LBC) glass ceramics were sintered at low temperature to density BaTi4O9 (BT4) microwave dielectric ceramics. The effects of composition ratio and sintering on the micromorphology, phase properties LBC/BT4 multiphase investigated. Experimental results showed that LBC microcrystalline BT4 happened between ceramic interface reaction obviously, with increase content i...