Pure and cerium-doped zinc orthosilicate as a pigment for thermoregulating coatings

被引：13

作者：

Baghramyan, V. V. ^{[1
]}

Sargsyan, A. A. ^{[1
]}

Knyzyan, N. B. ^{[1
]}

Harutyunyan, V. V. ^{[2
]}

Badalyan, A. H. ^{[2
]}

Grigoryan, N. E. ^{[2
]}

Aprahamian, A. ^{[2
,3
]}

Manukyan, K., V ^{[3
]}

机构：

[1] Natl Acad Sci, MG Manvelyan Inst Gen & Inorgan Chem, 10 Argutyan Str, Yerevan 0051, Armenia

[2] Alikhanian Natl Sci Lab, 2 Alikhanian Bros Str, Yerevan 0036, Armenia

[3] Univ Notre Dame, Dept Phys, Nucl Sci Lab, Notre Dame, IN 46556 USA

来源：

CERAMICS INTERNATIONAL | 2020年 / 46卷 / 04期

基金：

美国国家科学基金会;

关键词：

Zinc orthosilicate; Hydrothermal-microwave synthesis; Doping; Diffuse-reflection; Radiation resistance; Thermoregulating coatings; LUMINESCENCE PROPERTIES; THERMAL CONTROL; NANOPARTICLES; PHOSPHORS; CO; EMISSION;

D O I：

10.1016/j.ceramint.2019.10.239

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Microwave-assisted hydrothermal synthesis followed by high-temperature (1050 degrees C) calcination was used to prepare pure and cerium-doped zinc orthosilicate (Zn2SiO4) pigments. Nanoscale Zn2SiO4 and Ce-Zn2SiO4 powders were blended with potassium silicate (K2SiO3) and then applied to the aluminum substrate to obtain thermoregulating coatings. Electron beams with different energies were used to irradiate nanoscale pigment powders and coatings. X-ray diffraction (XRD), scanning electron microscopy (SEM), and transition electron microscopy (TEM) were used to characterize the phase composition, morphology, and atomic-level structure of materials. The diffuse reflectance and absorption measurements of materials before and after irradiation indicated that Ce-Zn2SiO4-based coatings exhibit better radiation resistance compared to pure Zn2SiO4. Siniple and straightforward preparation, as well as high radiation resistance, make Ce-Zn2SiO4-based thermoregulating coatings excellent candidates for space vehicles.

引用

页码：4992 / 4997

页数：6

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