Crystal structure of the double magnesium zirconium orthophosphate at temperatures of 298 and 1023 K

Journal Article · Tue Jan 15 04:00:00 EST 2008 · Crystallography Reports

DOI:https://doi.org/10.1134/S1063774508010069· OSTI ID:21090667

Sukhanov, M V; Pet'kov, V I ^[1]; Kabalov, Yu K ^[2]

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1. Nizhni Novgorod State University (Russian Federation)
2. Lomonosov Moscow State University (Russian Federation)

Double magnesium zirconium orthophosphate Mg{sub 0.5}Zr{sub 2}(PO{sub 4}){sub 3} is synthesized by the sol-gel method. The compound prepared is characterized using electron probe microanalysis and X-ray diffraction. The crystal structure of the orthophosphate is refined by the Rietveld method in space group P2{sub 1}/n (Z = 4) at temperatures of 298 K [a = 12.4218(2) A, b = 8.9025(2) A, c = 8.8218(2) A, {beta} = 90.466(1) deg.] and 1023 K [a = 12.4273(5) A, b = 8.9453(4) A, c = 8.8405(4) A, {beta} = 90.320(3) deg.]. It is demonstrated that an increase in the temperature leads to an anisotropic expansion of the unit cell of the phosphate structure, but the structural type remains unchanged.

• OSTI ID: 21090667
• Journal Information: Crystallography Reports, Journal Name: Crystallography Reports Journal Issue: 1 Vol. 53; ISSN CYSTE3; ISSN 1063-7745
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANISOTROPY
ELECTRON MICROPROBE ANALYSIS
MAGNESIUM COMPOUNDS
MONOCLINIC LATTICES
PHOSPHATES
SOL-GEL PROCESS
SPACE GROUPS
X-RAY DIFFRACTION
ZIRCONIUM COMPOUNDS