Perovskite(Ba,Sr)TiO_(3)glass ceramics were crystallized in the presence of La_(2)O_(3)for glass ceramic system[(Ba_(1-x)Sr_(x))TiO_(3)]-[2SiO_(2)-B2O_(3)]-[K2O]-[La_(2)O_(3)](x=0.0 and 0.4).The formation of major cry...Perovskite(Ba,Sr)TiO_(3)glass ceramics were crystallized in the presence of La_(2)O_(3)for glass ceramic system[(Ba_(1-x)Sr_(x))TiO_(3)]-[2SiO_(2)-B2O_(3)]-[K2O]-[La_(2)O_(3)](x=0.0 and 0.4).The formation of major crystalline phase of BaTiO_(3)along with secondary phase of Ba_(2)TiSi_(2)O_(8) was confirmed by X-ray diffraction(XRD)studies.Major crystalline phase was clearly seen in the micrographs of(Ba,Sr)TiO_(3)borosilicate glass ceramic samples.The prepared glass ceramic samples showed very high values of toughness and elastic modulus.Barium strontium titanate(BST)glass ceramics are used in barrier layer capacitors for storage of high energy due to their very high dielectric constant and low dielectric loss.展开更多
基金The authors gratefully acknowledge the University Grant Commission(UGC),New Delhi,India for financial support under major research project F.No.37-439/2009(SR).
文摘Perovskite(Ba,Sr)TiO_(3)glass ceramics were crystallized in the presence of La_(2)O_(3)for glass ceramic system[(Ba_(1-x)Sr_(x))TiO_(3)]-[2SiO_(2)-B2O_(3)]-[K2O]-[La_(2)O_(3)](x=0.0 and 0.4).The formation of major crystalline phase of BaTiO_(3)along with secondary phase of Ba_(2)TiSi_(2)O_(8) was confirmed by X-ray diffraction(XRD)studies.Major crystalline phase was clearly seen in the micrographs of(Ba,Sr)TiO_(3)borosilicate glass ceramic samples.The prepared glass ceramic samples showed very high values of toughness and elastic modulus.Barium strontium titanate(BST)glass ceramics are used in barrier layer capacitors for storage of high energy due to their very high dielectric constant and low dielectric loss.
