Exploration of the low thermal conductivities of γ-Y2Si2O7, β-Y2Si2O7, β-Yb2Si2O7, and β-Lu2Si2O7 as novel environmental barrier coating candidates

Z Tian, L Zheng, Z Li, J Li, J Wang - Journal of the European Ceramic …, 2016 - Elsevier
Thermal conductivities of γ-Y 2 Si 2 O 7, β-Y 2 Si 2 O 7, β-Yb 2 Si 2 O 7, and β-Lu 2 Si 2 O 7
were investigated by combined first-principles calculations and experimental evaluation …

Thermal performance regulation of high‐entropy rare‐earth disilicate for thermal environmental barrier coating materials

X Wang, Y He, C Wang, Y Bai, F Zhang… - Journal of the …, 2022 - Wiley Online Library
We prepared the novel high‐entropy (xRE1/x) 2Si2O7 (RE= Y, Yb, Er, Sc, Gd and Eu, x= 2–
6) ceramics by a two‐step method for the application of thermal environmental barrier …

High temperature corrosion behavior and the inhibition of apatite formation evolving from corrosion of (Y1− xYbx) 2SiO5 in water vapor environment

G Cao, SQ Wang, ZY Ding, YH Wang, ZG Liu… - Applied Surface …, 2022 - Elsevier
Environmental barrier coatings (EBCs) are usually coated on SiC ceramic or ceramic matrix
composites (CMCs), in order to prevent the attack from corrosive media like water vapor and …

Dual-function yttrium-silicate-modified SiC ceramics with prominent antioxidant performance

Q Ma, S Mu, Y Zhang, X Shen, Y Xue, H Luo, J Yang… - Corrosion …, 2024 - Elsevier
The oxidation of dense yttrium-silicate-modified and unmodified SiC-based ceramic (YPS-
SiC and RMI-SiC) at 1200, 1300, and 1400° C was studied. Oxide scale formed on the …

Density functional study of the phase stability and Raman spectra of Yb 2 O 3, Yb 2 SiO 5 and Yb 2 Si 2 O 7 under pressure

T Ogawa, N Otani, T Yokoi, CAJ Fisher… - Physical chemistry …, 2018 - pubs.rsc.org
The phase stability and Raman spectra of Yb2O3, Yb2SiO5 and Yb2Si2O7 under
hydrostatic pressure are investigated using density functional theory calculations. The …

Vibrational properties of silicates: A cluster model able to reproduce the effect of “SiO4” polymerization on Raman intensities

V Labet, P Colomban - Journal of non-crystalline solids, 2013 - Elsevier
An ensemble of ten silicate clusters is examined using quantum chemical calculations
(Density Functional Theory) as a potential model to study the effect of polymerization of the …

[HTML][HTML] Atomic structural visualization on γ-Ho2Si2O7 using iDPC-STEM technique and its correlation with thermal expansion as advanced environmental barrier …

X Lv, Y Luo, J Cui, J Zhang, L Zhang, J Wang - Materials Today Physics, 2023 - Elsevier
Abstract γ-Ho 2 Si 2 O 7 has attracted considerable attention as advanced environmental
barrier coating (EBC) material for SiC f/SiC CMC due to its matchable thermal expansion …

Recent advances in linear and nonlinear Raman spectroscopy. Part VI

LA Nafie - Journal of Raman Spectroscopy, 2012 - Wiley Online Library
The purpose of this review is to provide a concise overview of recent advances in the
broadly defined field of Raman spectroscopy as reflected in part by the many articles …

Control of the formation and luminescent properties of polymorphic erbium silicates on silicon

Y Gao, H Shen, J Cao, D Li, D Yang - Optical Materials Express, 2019 - opg.optica.org
We report on the control of the formation and the luminescent properties of polymorphic
forms of erbium (Er) silicates by the modification of annealing temperatures, annealing …

Tb3+/Yb3+ doped aluminosilicate phosphors for near infrared emission and efficient down-conversion

RE Rojas-Hernandez, LF Santos, RM Almeida - Journal of Luminescence, 2018 - Elsevier
The spectral mismatch between incident solar photons and the bandgap of crystalline silicon
in solar cells results in major energy losses. Photons with energies lower than the bandgap …