Details

Autor(en) / Beteiligte

• Savinykh, D. O.
• Khainakov, S. A.
• Orlova, A. I.
• Garcia-Granda, S.

Titel

Preparation and Thermal Expansion of Calcium Iron Zirconium Phosphates with the NaZr2(PO4)3 Structure

Ist Teil von

• Inorganic materials, 2018, Vol.54 (6), p.591-595

Ort / Verlag

Moscow: Pleiades Publishing

Erscheinungsjahr

2018

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Ca 0.5(1 + x ) Zr 2– x Fe x (PO 4 ) 3 phosphates have been synthesized by a sol–gel process. The individual compounds and solid solutions obtained crystallize in the NaZr 2 (PO 4 ) 3 structure (trigonal symmetry, sp. gr. R 3 ¯ ). Using high-temperature X-ray diffraction, we have determined their thermal expansion parameters in the temperature range from 25 to 800°C. With increasing x , the magnitudes of their linear thermal expansion coefficients and thermal expansion anisotropy decrease. Most of the synthesized phosphates can be rated as low-thermal-expansion compounds and can be regarded as materials capable of withstanding thermal “stress.”