Formation of Lead Zirconate‐Lead Titanate Solid Solutions

Abstract
Formation of the Pb(Zr,Ti)O3 solid solution in the system PbO‐TiO2‐ZrO2 was studied by chemical analysis and X‐ray powder diffrac‐tometry. Only PbTiO3 and Pb(Zr,Ti)O3 were found as reaction products. The following three elementary reactions seemed to be reasonable for the formation of the Pb(Zr,Ti)O3 phase: PbO + TiO2→ PbTiO3, PbTiO3+ PbO + ZrO2→Pb(Zr1‐λTiλ)O3, and Pb(Zrl‐λTiλ)O3+ PbTiO3→ Pb(Zr1‐λ′Tiλ′)O3 (λ<λ′).