Influence of nickel ion concentration on the free volume defects entrenched in an alkali sulphophosphate glass system by means of positron annihilation characterization technique
Source abstract
Abstract
Abstract In this study we have evaluated the concentration of defect centers like voids, their size (up to nanoscale) and the fraction of free volume space integrated in Li2SO4−MgO−P2O5:NiO glass system as a function of NiO content. Positron annihilation lifetime (PAL) technique with 22Na positron source of radio activity 100 kBq is used for this study. The size, shape and the concentration of entrenched defects in the glass matrix are predicted to influence profoundly the physical properties of the glass. Cavity radius (R) and the entrenched free volume fraction (fv) are found to be the maximal in the sample doped with 0.8 mol% of NiO. This observation suggested that Ni2+ ions predominantly occupied octahedral positions (acted as modifiers along with SO42– ions) and induced large concentration of structural defects. The obtained information is found to be in concurrent with inferences drawn from dielectrics and spectroscopic studies of these glasses reported earlier.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Muon and positron interactions and applications · Glass properties and applications · Synthesis and characterization of novel inorganic/organometallic compounds
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Raman studies of sulfur in borosilicate waste glasses: sulfate environments10.1016/S0022-3093(01)00624-X ↗
2. The electrochemistry of particles, droplets and vesicles – the present situation and future tasks10.1007/s10008-011-1318-7 ↗
3. Interfacial reactions between tellurite melts and silica during the production of micro structured optical devices10.1016/j.jnoncrysol.2010.12.032 ↗
4. Dissolution of SO3 within a lithium phosphateglass network and structure–property relationships
5. Dielectric dispersion and conductivity spectra of NiO doped Li2SO4‒MgO‒P2O5 glass system
6. Electrical and spectroscopic properties of Fe2O3 doped Na2SO4–BaO–P2O5 glass system10.1016/j.jnoncrysol.2012.08.032 ↗
7. Role of modifier oxide in emission spectra and kinetics of Er–Ho co-doped Na2SO4–MO–P2O5 glasses, Spectrochim10.1016/j.saa.2011.10.071 ↗
8. Fluorescence features of Sm3+ ions in Na2SO4–MO–P2O5 glasssystem-Influence of modifier oxide10.1016/j.jlumin.2010.09.044 ↗
9. Structural transformations and spectroscopic properties of Ni-doped magnesium aluminosilicate glass-ceramics nucleated by a mixture of TiO2 and ZrO2 for broadband near-IR light emission10.1016/j.jallcom.2018.11.247 ↗
10. Role of nickel ion coordination on spectroscopic and dielectric properties of ZnF2–As2O3–TeO2: NiO glass system10.1016/j.jnoncrysol.2010.11.016 ↗
11. Pre-crystallization heat treatment and infrared luminescence enhancement in Ni2+doped transparent glass-ceramics10.1016/j.jnoncrysol.2019.04.006 ↗
12. The speciation of Ni and Co in silicate melts from optical absorption spectra to 1500 °C10.1016/S0009-2541(99)00021-2 ↗
13. Insitu local environment and partitioning of Ni2+ ions during crystallization of an oxyfluoride glass10.1016/j.jnoncrysol.2014.09.051 ↗
14. Sol-gel synthesis of NiO nanoparticles doped sodium borosilicate glass with third-order nonlinear optical properties10.1016/j.jallcom.2016.06.072 ↗
15. Nickel ion as a structural probe in PbO–Bi2O3–B2O3 glass system by means of spectroscopic and dielectric studies10.1016/j.physb.2008.07.001 ↗
16. Nickel ion-A structural probe in BaO–Al2O3–P2O5 glass system by means of dielectric, spectroscopic and magnetic studies10.1016/j.jpcs.2006.07.002 ↗
17. Spectroscopic features of photo and thermoluminescence of Tb3+ ions, in BaO–M2O3 (M = Ga, Al, In)–P2O5 glasses10.1016/j.jlumin.2007.03.011 ↗
18. Probing point defects in Ba(B′1/3B′′2/3)O3 by ESR, PAS and dielectric spectroscopy10.1016/j.jeurceramsoc.2005.09.022 ↗
19. Characterization of residual compressive stresses in layered ceramics by positron annihilation spectroscopy10.1016/j.jeurceramsoc.2012.06.006 ↗
20. Positronics of sub-nanometer atomistic imperfections in solids as a high-informative structure characterization tool10.1186/s11671-015-0764-z ↗
21. Influence of CsCl addition on the nanostructured voids and optical properties of 80GeS-20GaS glasses10.1016/j.optmat.2016.03.004 ↗
22. Evolution of porous structure and free-volume entities in magnesium aluminate spinel ceramics10.1016/j.ceramint.2014.01.070 ↗
23. Positron annihilation exploration of voids in zinc zirconium borate glass ceramics entrenched with ZnZrO3perovskite crystal phases10.1016/j.jeurceramsoc.2017.11.012 ↗
24. Free volume estimation in Au and Ag mixed sodium antimonate glass ceramics by means of positron annihilation10.1016/j.physb.2019.06.053 ↗
25. Structural and dielectric features of silver doped sodium antimonate glass ceramics10.1016/j.jallcom.2019.03.228 ↗
26. PAL spectroscopy in application to humidity-sensitive MgAl2O4 ceramics10.1016/j.jeurceramsoc.2005.03.174 ↗
27. Li · 2003 · 373
28. Positron annihilation in amine-cured epoxy polymers – pressure dependence10.1002/polb.1990.090280902 ↗
29. NiO - induced crystallization and optical characteristics of Li2O-CaF2-P2O5 glass system10.1002/pssa.200723371 ↗
30. Dielectric and optical properties -Structure correlations in NiO doped Li2O-MgO-B2O3 glasses
31. Crystallization behaviour, structure and properties of glasses in SrO–Fe2O3–P2O5 system10.1016/j.jnoncrysol.2019.119588 ↗
32. Spectroscopic investigation of P2O5–CdO–Li2O glass system10.1016/j.jnoncrysol.2012.10.008 ↗
33. Electrical and spectroscopic properties of Fe2O3 doped Na2SO4–BaO–P2O5 glass system10.1016/j.jnoncrysol.2012.08.032 ↗
34. Raman spectral investigation of sulfate inclusions in sodium calcium silicate glasses10.1006/jssc.1996.0166 ↗