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|Title:||Sol-gel synthesis and crystal chemical properties of the pigment Zn1.9Cu0.1SiO4|
|Authors:||Samigullina, R. F.|
Rotermel, M. V.
Ivanova, I. V.
Krasnenko, T. I.
|Publisher:||Уральский федеральный университет|
|Citation:||Sol-gel synthesis and crystal chemical properties of the pigment Zn1.9Cu0.1SiO4 / R. F. Samigullina, M. V. Rotermel, I. V. Ivanova, T. I. Krasnenko // Chimica Techno Acta. — 2018. — Vol. 5, No. 4. — P. 205–209.|
|Abstract:||The pigment Zn1.9Cu0.1SiO4 was obtained by the method of sol-gel synthesis. The crystallization temperature was set at 776 °C, ΔH ≈ –16.3 kJ / mol. Thermal expansion of the individual Zn2SiO4 and Zn1.9Cu0.1SiO4 solid solutions was studied by in situ high-temperature X-ray diffraction. It is shown that the substitution of Zn2+ → Cu2+ does not lead to significant changes in the lattice parameters; in the range from room temperature to 800 °C the structure expands monotonically when heated. The coefficients of volumetric thermal expansion for Zn2SiO4 and Zn1.9Cu0.1SiO4 are αV = 8.05 · 10–6 and 8.81 · 10–6 1 / K, respectively. The colorimetric coordinates in the RGB system are 71.8 % red, 72.9 % green and 79.6 % blue, which corresponds to the gray-blue pigment.|
|metadata.dc.description.sponsorship:||The work was supported by UB RAS (project 18‑10‑3‑32).|
|Origin:||Chimica Techno Acta. 2018. Vol. 5. № 4|
|Appears in Collections:||Chimica Techno Acta|
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