FTIR spectral analysis and mechanical properties of sodium phosphate glass-ceramics

Paramjyot Kumar Jha; O. P. Pandey; K. Singh

doi:10.1016/j.molstruc.2014.11.027

FTIR spectral analysis and mechanical properties of sodium phosphate glass-ceramics

Paramjyot Kumar Jha
, O. P. Pandey
, K. Singh

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

111 Scopus citations

Abstract

Glasses of compositions xNa₂O-(100 - x)P₂O₅, (40 ≤ x ≤ 55) were prepared by melt-quench technique. Controlled heat treatments of these glasses were done to obtain the glass-ceramics. Density of glass-ceramics increases with increasing content of Na₂O. X-ray diffraction pattern exhibited two crystalline phases, i.e., NaPO₃ and Na₂H₂P₂O₇ in all the glass-ceramic samples. FT-IR and Raman study revealed the de-polymerization of phosphate groups, that changes Q² → Q¹ → Q⁰ with Na₂O content and heat treatment. The scanning electron microscope study confirmed that interlocked crystals are dispersed in a glassy matrix. The Young's moduli of glass-ceramics are observed in the range of (17.3-21.5) GPa with the increase of Na₂O content. The highest value of micro-hardness observed is 918 MPa in x = 55 mol% Na₂O glass-ceramic sample. The observed elastic moduli of glass-ceramics are comparable to the other solid electrolyte which is being used in Na-ion batteries.

Original language	English
Pages (from-to)	278-285
Number of pages	8
Journal	Journal of Molecular Structure
Volume	1083
DOIs	https://doi.org/10.1016/j.molstruc.2014.11.027
State	Published - 5 Mar 2015
Externally published	Yes

Keywords

Glass-ceramics
IR spectroscopy
Mechanical properties
Microstructures

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10.1016/j.molstruc.2014.11.027

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@article{aadcf29df1094eeea864597379ff742c,

title = "FTIR spectral analysis and mechanical properties of sodium phosphate glass-ceramics",

abstract = "Glasses of compositions xNa2O-(100 - x)P2O5, (40 ≤ x ≤ 55) were prepared by melt-quench technique. Controlled heat treatments of these glasses were done to obtain the glass-ceramics. Density of glass-ceramics increases with increasing content of Na2O. X-ray diffraction pattern exhibited two crystalline phases, i.e., NaPO3 and Na2H2P2O7 in all the glass-ceramic samples. FT-IR and Raman study revealed the de-polymerization of phosphate groups, that changes Q2 → Q1 → Q0 with Na2O content and heat treatment. The scanning electron microscope study confirmed that interlocked crystals are dispersed in a glassy matrix. The Young's moduli of glass-ceramics are observed in the range of (17.3-21.5) GPa with the increase of Na2O content. The highest value of micro-hardness observed is 918 MPa in x = 55 mol\% Na2O glass-ceramic sample. The observed elastic moduli of glass-ceramics are comparable to the other solid electrolyte which is being used in Na-ion batteries.",

keywords = "Glass-ceramics, IR spectroscopy, Mechanical properties, Microstructures",

author = "Jha, \{Paramjyot Kumar\} and Pandey, \{O. P.\} and K. Singh",

year = "2015",

month = mar,

day = "5",

doi = "10.1016/j.molstruc.2014.11.027",

language = "English",

volume = "1083",

pages = "278--285",

journal = "Journal of Molecular Structure",

issn = "0022-2860",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - FTIR spectral analysis and mechanical properties of sodium phosphate glass-ceramics

AU - Jha, Paramjyot Kumar

AU - Pandey, O. P.

AU - Singh, K.

PY - 2015/3/5

Y1 - 2015/3/5

N2 - Glasses of compositions xNa2O-(100 - x)P2O5, (40 ≤ x ≤ 55) were prepared by melt-quench technique. Controlled heat treatments of these glasses were done to obtain the glass-ceramics. Density of glass-ceramics increases with increasing content of Na2O. X-ray diffraction pattern exhibited two crystalline phases, i.e., NaPO3 and Na2H2P2O7 in all the glass-ceramic samples. FT-IR and Raman study revealed the de-polymerization of phosphate groups, that changes Q2 → Q1 → Q0 with Na2O content and heat treatment. The scanning electron microscope study confirmed that interlocked crystals are dispersed in a glassy matrix. The Young's moduli of glass-ceramics are observed in the range of (17.3-21.5) GPa with the increase of Na2O content. The highest value of micro-hardness observed is 918 MPa in x = 55 mol% Na2O glass-ceramic sample. The observed elastic moduli of glass-ceramics are comparable to the other solid electrolyte which is being used in Na-ion batteries.

AB - Glasses of compositions xNa2O-(100 - x)P2O5, (40 ≤ x ≤ 55) were prepared by melt-quench technique. Controlled heat treatments of these glasses were done to obtain the glass-ceramics. Density of glass-ceramics increases with increasing content of Na2O. X-ray diffraction pattern exhibited two crystalline phases, i.e., NaPO3 and Na2H2P2O7 in all the glass-ceramic samples. FT-IR and Raman study revealed the de-polymerization of phosphate groups, that changes Q2 → Q1 → Q0 with Na2O content and heat treatment. The scanning electron microscope study confirmed that interlocked crystals are dispersed in a glassy matrix. The Young's moduli of glass-ceramics are observed in the range of (17.3-21.5) GPa with the increase of Na2O content. The highest value of micro-hardness observed is 918 MPa in x = 55 mol% Na2O glass-ceramic sample. The observed elastic moduli of glass-ceramics are comparable to the other solid electrolyte which is being used in Na-ion batteries.

KW - Glass-ceramics

KW - IR spectroscopy

KW - Mechanical properties

KW - Microstructures

UR - https://www.scopus.com/pages/publications/84920693169

U2 - 10.1016/j.molstruc.2014.11.027

DO - 10.1016/j.molstruc.2014.11.027

M3 - Article

AN - SCOPUS:84920693169

SN - 0022-2860

VL - 1083

SP - 278

EP - 285

JO - Journal of Molecular Structure

JF - Journal of Molecular Structure

ER -

FTIR spectral analysis and mechanical properties of sodium phosphate glass-ceramics

Abstract

Keywords

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