The enthalpy of formation of lanthanum zirconate, La2Zr2O7, which is shown to have a distorted pyrochlore structure, was determined. High‐temperature solution calorimetry in molten lead borate was used to determine the heat of formation from the constituent oxides as −135.8 ± 6.4 kJ/mol at 974 K. Using additional data on the enthalpies of formation of the oxides and heat contents, this value was converted to a standard enthalpy of formation from the elements: ΔfH°298.15=−4130.4 ± 6.8 kJ/mol.
|Original language||English (US)|
|Number of pages||2|
|Journal||Journal of the American Ceramic Society|
|State||Published - Aug 1995|
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry