Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
High-temperature crystal chemistry of Na6(UO2)2O(MoO4)4. / Nazarchuk, E. V.; Siidra, O. I.; Krivovichev, S. V.
в: Radiochemistry, Том 58, № 1, 01.01.2016, стр. 6-9.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - High-temperature crystal chemistry of Na6(UO2)2O(MoO4)4
AU - Nazarchuk, E. V.
AU - Siidra, O. I.
AU - Krivovichev, S. V.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Thermal deformations of Na6(UO2)2O(MoO4)4 were studied by high-temperature powder X-ray diffraction. The compound crystallizes in the triclinic system, space group P $$\bar 1$$, a = 7.636(7), b = 8.163(6), c = 8.746(4) Å, α = 72.32(9)°, β = 79.36(4)°, γ = 65.79(5)°, V = 472.74(4) Å3. It is stable in the temperature interval 20-700°C. The thermal expansion coefficients (TECs) are α11 = 25.5 × 10-6, α22 = 7.8 × 10-6, and α33 = 1.1 × 10-6 (°C)-1. The orientation of the TEC pattern relative to the crystallographic axes is a 33^Z = 45°, a 33^X = 122°, a 22^Z = 59°, and a 22^X = 66°. The anisotropy of the thermal expansion is due to specific features of the crystal structure of the compound.
AB - Thermal deformations of Na6(UO2)2O(MoO4)4 were studied by high-temperature powder X-ray diffraction. The compound crystallizes in the triclinic system, space group P $$\bar 1$$, a = 7.636(7), b = 8.163(6), c = 8.746(4) Å, α = 72.32(9)°, β = 79.36(4)°, γ = 65.79(5)°, V = 472.74(4) Å3. It is stable in the temperature interval 20-700°C. The thermal expansion coefficients (TECs) are α11 = 25.5 × 10-6, α22 = 7.8 × 10-6, and α33 = 1.1 × 10-6 (°C)-1. The orientation of the TEC pattern relative to the crystallographic axes is a 33^Z = 45°, a 33^X = 122°, a 22^Z = 59°, and a 22^X = 66°. The anisotropy of the thermal expansion is due to specific features of the crystal structure of the compound.
KW - high-temperature X-ray diffraction
KW - thermal expansion
KW - uranyl molybdates
UR - http://www.scopus.com/inward/record.url?scp=84958191087&partnerID=8YFLogxK
U2 - 10.1134/S1066362216010021
DO - 10.1134/S1066362216010021
M3 - Article
AN - SCOPUS:84958191087
VL - 58
SP - 6
EP - 9
JO - Radiochemistry
JF - Radiochemistry
SN - 1066-3622
IS - 1
ER -
ID: 9144683