Antimony substitution leading to structural transformation (Bixbyite→ Fluorite) and altering the optical band gap in Y2O3

Nagarajan, Rajamani; Kumari, Promila

doi:10.1016/j.jallcom.2021.158733

Cited by 4 publications

(2 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(2) It is monophasic, easing the Rietveld refinement and increasing the precision for phase quantification. (3) It has a cubic structure ( Ia 3̅ space group), reducing the possibility of preferential orientation. (4) The most intense XRD peaks of this material do not overlap with the ones from LAGP and LScAGP.…”

Section: Results and Discussionmentioning

confidence: 99%

“…To properly obtain α, Rietveld refinements following the Internal Standard Method were performed. The same pattern (Y 2 O 3 ) used for the Le Bail refinement was structurally characterized to confirm that it is monophasic and that it has a cubic structure (Figure S1, data interpretation according to refs − ). The conditions and equipment for the structural characterization of the pattern were the same as described in this section.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Understanding the Evolution of the Structure and Electrical Properties during Crystallization of Li_1.5Al_0.5Ge_1.5(PO₄)₃ and Li_1.5Sc_0.17Al_0.33Ge_1.5(PO₄)₃ NASICON -Type Glass Ceramics

et al. 2023

View full text Add to dashboard Cite

In this paper, the effects of crystallization advance on the material structure and electrical properties of lithium-ion Na+ super ionic conductor (NASICON) glass ceramics were investigated. Glasses with Li1.5Al0.5Ge1.5(PO4)3 and Li1.5Sc0.17Al0.33Ge1.5(PO4)3 compositions were crystallized in controlled conditions to obtain gradual increment of the volume crystallized fraction. The glass-to-crystal transformation was then monitored by differential scanning calorimetry analysis (DSC), X-ray diffractometry (XRD), Raman spectroscopy, solid-state nuclear magnetic resonance spectroscopy (MAS NMR), and electron microscopy, along with chemical analyses. Finally, the electrical properties of the specimens were evaluated by impedance spectroscopy to observe the changes in electrical properties according to the crystallization advance. Results revealed that glasses containing scandium are more stable against crystallization than their neat counterparts. Crystallization led to the formation of single-phase NASICON glass ceramics. Scandium induced a lattice expansion of the NASICON structure. Furthermore, crystallization induces remarkable structural changes in the materials as a whole, either in local order or in medium to long order. No important increase in conductivity was observed in earlier stages of crystallization. After the percolation of crystals, conductivity increases sharply and the remaining glassy phase has little impact on the total conductivity of the material. Scandium expands the rhombohedral structure but increases the glass stability and reduces the sizes of crystals for the fully crystallized glass ceramics. Glass ceramics with larger grains are more propitious for conductivity than the more refined ones. Therefore, this paper offers key information about the understanding of NASICON crystallization and its structural evolution, providing important insights into the crystallization of these electrolytes.

show abstract

Section: Results and Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Understanding the Evolution of the Structure and Electrical Properties during Crystallization of Li_1.5Al_0.5Ge_1.5(PO₄)₃ and Li_1.5Sc_0.17Al_0.33Ge_1.5(PO₄)₃ NASICON -Type Glass Ceramics

et al. 2023

View full text Add to dashboard Cite

show abstract

Theoretical Studies of Electronic and Optical Properties of Bixbyite and Fluorite Polymorphs of Sb-Doped Y2O3

Naveed-Ul-Haq

2021

J. Electron. Mater.

View full text Add to dashboard Cite

Structure evolution of Y2O3 and consequent effects on mechanical properties of W–Y2O3 alloy prepared by ball milling and SPS

Wang

Sun

Pang

et al. 2022

Materials Science and Engineering: A

View full text Add to dashboard Cite

Antimony substitution leading to structural transformation (Bixbyite→ Fluorite) and altering the optical band gap in Y2O3

Cited by 4 publications

References 42 publications

Understanding the Evolution of the Structure and Electrical Properties during Crystallization of Li_1.5Al_0.5Ge_1.5(PO₄)₃ and Li_1.5Sc_0.17Al_0.33Ge_1.5(PO₄)₃ NASICON -Type Glass Ceramics

Understanding the Evolution of the Structure and Electrical Properties during Crystallization of Li_1.5Al_0.5Ge_1.5(PO₄)₃ and Li_1.5Sc_0.17Al_0.33Ge_1.5(PO₄)₃ NASICON -Type Glass Ceramics

Theoretical Studies of Electronic and Optical Properties of Bixbyite and Fluorite Polymorphs of Sb-Doped Y2O3

Structure evolution of Y2O3 and consequent effects on mechanical properties of W–Y2O3 alloy prepared by ball milling and SPS

Contact Info

Product

Resources

About

Antimony substitution leading to structural transformation (Bixbyite→ Fluorite) and altering the optical band gap in Y2O3

Cited by 4 publications

References 42 publications

Understanding the Evolution of the Structure and Electrical Properties during Crystallization of Li1.5Al0.5Ge1.5(PO4)3 and Li1.5Sc0.17Al0.33Ge1.5(PO4)3 NASICON -Type Glass Ceramics

Understanding the Evolution of the Structure and Electrical Properties during Crystallization of Li1.5Al0.5Ge1.5(PO4)3 and Li1.5Sc0.17Al0.33Ge1.5(PO4)3 NASICON -Type Glass Ceramics

Theoretical Studies of Electronic and Optical Properties of Bixbyite and Fluorite Polymorphs of Sb-Doped Y2O3

Structure evolution of Y2O3 and consequent effects on mechanical properties of W–Y2O3 alloy prepared by ball milling and SPS

Contact Info

Product

Resources

About

Understanding the Evolution of the Structure and Electrical Properties during Crystallization of Li_1.5Al_0.5Ge_1.5(PO₄)₃ and Li_1.5Sc_0.17Al_0.33Ge_1.5(PO₄)₃ NASICON -Type Glass Ceramics

Understanding the Evolution of the Structure and Electrical Properties during Crystallization of Li_1.5Al_0.5Ge_1.5(PO₄)₃ and Li_1.5Sc_0.17Al_0.33Ge_1.5(PO₄)₃ NASICON -Type Glass Ceramics