High conductivity and mechanical loss due to mobile fluoride ions in PbF2MnF2Al(PO3)3 glasses

A. R. Kulkarni; C. A. Angell

doi:10.1016/0025-5408(86)90228-X

High conductivity and mechanical loss due to mobile fluoride ions in PbF₂MnF₂Al(PO₃)₃ glasses

A. R. Kulkarni, C. A. Angell

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

15 Scopus citations

Abstract

New fluoride glasses in the system PbF₂MnF₂Al(PO₃)₃ have been synthesised and found to have high d.c. conductivities, presumably due to mobile F ions. A.C. electrical data (25-200°C) have been analyzed by impedance spectroscopy. A glass with the composition 85PbF₂5MnF₂10Al(PO₃)₃ yields a record value for conductivity in an anionic conducting glass, σ₂₀₀ = 1.1 × 10^-4(ω-cm)^-1, nearly two orders of magnitude higher than the best values so far reported. Electrical and mechanical relaxation data have been compared in the isofrequency-inverse temperature representation. As seen previously for cation conductors, the mechanical relaxation is less exponential (broader) than the electrical relaxation. However, in the present case the most probable mechanical relaxation time is shorter than the most probable electrical relaxation time.

Original language	English (US)
Pages (from-to)	1115-1121
Number of pages	7
Journal	Materials Research Bulletin
Volume	21
Issue number	9
DOIs	https://doi.org/10.1016/0025-5408(86)90228-X
State	Published - Sep 1986
Externally published	Yes

Keywords

Fluoride glasses

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/0025-5408(86)90228-X

Cite this

@article{cb444727e3ce453dab4d7a5566a36996,

title = "High conductivity and mechanical loss due to mobile fluoride ions in PbF2MnF2Al(PO3)3 glasses",

abstract = "New fluoride glasses in the system PbF2MnF2Al(PO3)3 have been synthesised and found to have high d.c. conductivities, presumably due to mobile F ions. A.C. electrical data (25-200°C) have been analyzed by impedance spectroscopy. A glass with the composition 85PbF25MnF210Al(PO3)3 yields a record value for conductivity in an anionic conducting glass, σ200 = 1.1 × 10-4(ω-cm)-1, nearly two orders of magnitude higher than the best values so far reported. Electrical and mechanical relaxation data have been compared in the isofrequency-inverse temperature representation. As seen previously for cation conductors, the mechanical relaxation is less exponential (broader) than the electrical relaxation. However, in the present case the most probable mechanical relaxation time is shorter than the most probable electrical relaxation time.",

keywords = "Fluoride glasses",

author = "Kulkarni, {A. R.} and Angell, {C. A.}",

note = "Funding Information: ACKNOWLEDGEMENTS Financial support to one of US (ARK), by Government of India, Ministry of Education and Culture is gratefully acknowledged. The work was otherwise supported by the Department of Energy under Grant No. $9028884ER45102",

year = "1986",

month = sep,

doi = "10.1016/0025-5408(86)90228-X",

language = "English (US)",

volume = "21",

pages = "1115--1121",

journal = "Materials Research Bulletin",

issn = "0025-5408",

publisher = "Elsevier Limited",

number = "9",

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TY - JOUR

T1 - High conductivity and mechanical loss due to mobile fluoride ions in PbF2MnF2Al(PO3)3 glasses

AU - Kulkarni, A. R.

AU - Angell, C. A.

N1 - Funding Information: ACKNOWLEDGEMENTS Financial support to one of US (ARK), by Government of India, Ministry of Education and Culture is gratefully acknowledged. The work was otherwise supported by the Department of Energy under Grant No. $9028884ER45102

PY - 1986/9

Y1 - 1986/9

N2 - New fluoride glasses in the system PbF2MnF2Al(PO3)3 have been synthesised and found to have high d.c. conductivities, presumably due to mobile F ions. A.C. electrical data (25-200°C) have been analyzed by impedance spectroscopy. A glass with the composition 85PbF25MnF210Al(PO3)3 yields a record value for conductivity in an anionic conducting glass, σ200 = 1.1 × 10-4(ω-cm)-1, nearly two orders of magnitude higher than the best values so far reported. Electrical and mechanical relaxation data have been compared in the isofrequency-inverse temperature representation. As seen previously for cation conductors, the mechanical relaxation is less exponential (broader) than the electrical relaxation. However, in the present case the most probable mechanical relaxation time is shorter than the most probable electrical relaxation time.

AB - New fluoride glasses in the system PbF2MnF2Al(PO3)3 have been synthesised and found to have high d.c. conductivities, presumably due to mobile F ions. A.C. electrical data (25-200°C) have been analyzed by impedance spectroscopy. A glass with the composition 85PbF25MnF210Al(PO3)3 yields a record value for conductivity in an anionic conducting glass, σ200 = 1.1 × 10-4(ω-cm)-1, nearly two orders of magnitude higher than the best values so far reported. Electrical and mechanical relaxation data have been compared in the isofrequency-inverse temperature representation. As seen previously for cation conductors, the mechanical relaxation is less exponential (broader) than the electrical relaxation. However, in the present case the most probable mechanical relaxation time is shorter than the most probable electrical relaxation time.

KW - Fluoride glasses

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