Size and Charge Effects of Dopant M on the Unit‐Cell Parameters of Monoclinic Zirconia Solid Solutions Zr0.98M0.02O2 –δ(M = Ce, La, Nd, Sm, Y, Er, Yb, Sc, Mg, Ca)

Abstract

The crystal structure of monoclinic phase [P21/cZ= 4] has been refined by the Rietveld analysis of X‐ray powder diffraction data to study the size and charge effects of dopant Mn+on the unit‐cell parameters of monoclinic ZrO2−2 mol% MOn/2solid solutions (n= 4 for M = Ce;n= 3 for M = La, Nd, Sm, Y, Er, Yb, Sc; andn= 2 for M = Mg and Ca). For trivalent dopant (n= 3), the unit‐cell parametersam,bm,cmand unit‐cell volume increase and βmdecreases with an increase of dopant size. Unit‐cell volume increases with increasing of dopant chargen.