High-temperature crystal chemistry of Na6(UO2)2O(MoO4)4

Standard

High-temperature crystal chemistry of Na₆(UO₂)₂O(MoO₄)₄. / Nazarchuk, E. V.; Siidra, O. I.; Krivovichev, S. V.

In: Radiochemistry, Vol. 58, No. 1, 01.01.2016, p. 6-9.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{3ff74c1a669740588afa9bcc9b5944f4,

title = "High-temperature crystal chemistry of Na6(UO2)2O(MoO4)4",

abstract = "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) {\AA}, α = 72.32(9)°, β = 79.36(4)°, γ = 65.79(5)°, V = 472.74(4) {\AA}3. 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.",

keywords = "high-temperature X-ray diffraction, thermal expansion, uranyl molybdates",

author = "Nazarchuk, {E. V.} and Siidra, {O. I.} and Krivovichev, {S. V.}",

year = "2016",

month = jan,

day = "1",

doi = "10.1134/S1066362216010021",

language = "English",

volume = "58",

pages = "6--9",

journal = "Radiochemistry",

issn = "1066-3622",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "1",

}

RIS

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