Glass Physics and Chemistry

, Volume 39, Issue 2, pp 162–173 | Cite as

Controlled crystallization of (Pb, Sr)TiO3 borosilicate glass ceramics doped with Nb2O5

Article

Abstarct

Various glass samples were prepared in the system [(Pb x Sr1 − x )O · TiO2]-[2SiO2 · B2O3]-[K2O]-[BaO]-[Nb2O5] (0.5 ≤ x ≤ 1) by melt quench method. Donor dopant Nb2O5 has been found to play an important role in the crystallization of the parent glasses. X-ray diffraction studies indicated that perovskite lead titanate (PT) or perovskite (Pb, Sr)TiO3 (PST) crystallize as a major phase followed by secondary phases of PbTi3O7, PbB2O4 and TiO2 (Rutile). Scanning electron microscopy (SEM) shows the uniform and well-interconnected morphology of the crystallites. Energy dispersive X-ray analysis (EDAX) confirms the formation of perovskite PT/PST solid solution as major phase.

Keywords

X-ray diffraction crystallization microstructure perovskite lead titanate 

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© Pleiades Publishing, Ltd. 2013

Authors and Affiliations

  1. 1.Department of PhysicsUniversity of LucknowLucknowIndia
  2. 2.Department of Ceramic Engineering, Indian Institute of TechnologyBanaras Hindu UniversityVaranasiIndia

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