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Evolution of Interfacial Microstructure between Barium Titanate and Binary Glasses
Authors:Yoshirou Kuromitsu  Sea Fue Wang  Shoko Yoshikawa  Robert E Newnham
Affiliation:Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802
Abstract:Evolution of interfacial microstructure between BaTiO3 and the binary glasses used as frits in thick-film technology has been studied. Possible reaction mechanisms for the interfacial compounds have been determined by comparing the results of the sintering study with the reaction of BaTiO3, powder with glass powders. The interfacial microstructure can be divided into two types. The first type of interfacial microstructure is observed for glasses rich in PbO or Bi2O3 network modifiers and is characterized by the penetration of glass into the BaTiO3 grain boundaries, accompanied by incorporation of Pb into the perovskite lattice. The second type of interfacial microstructure is observed for glasses rich in B2O3 or SiO2 network formers and is characterized by the formation of interfacial compounds.
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