Abstract
The general structural aspects of phosphates with {[L2(PO4)3]p–}3∞ frameworks (L = octahedral cation) are considered, and the possible isomorphous substitutions in NaZr2(PO4)3 (NZP) phosphates are analyzed. The available data on the thermal expansion of NZP materials in the range 293–1273 K, together with crystal-chemical data on their structure, are used to identify the processes underlying the thermal expansion of these materials. The results provide basic guidelines in designing NZP-based materials with controlled (ultralow) thermal expansion and near-zero expansion anisotropy.
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Pet'kov, V.I., Orlova, A.I. Crystal-Chemical Approach to Predicting the Thermal Expansion of Compounds in the NZP Family. Inorganic Materials 39, 1013–1023 (2003). https://doi.org/10.1023/A:1026074722220
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DOI: https://doi.org/10.1023/A:1026074722220