Etude de la diffusion des cations Cu+ dans le verre (CuPO3)0.5(CuI)0.5 par diffusion quasielastique des neutrons

C. Rousselot, R. Mercier, J. P. Malugani, M. Tachez, Charles Angell, A. J. Dianoux

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A neutron scattering experiment was performed on the fast ionic conductor (CuPO3)0.5(CuI)0.5 using the time-of-flight spectrometer IN6 with the following parameters: λ = 5,1 A ̊, resolution (FWHM) Eo = 80 μev, 1.44 < Q < 2.04 A ̊-1. The spectra essentially consist of a quasielastic broadening of the elastic peak with a long inelastic tail up to 20 meV. The deconvolution of elastic and quasielastic contribution gives a constant value of the purely elastic contribution : 90 % for three temperatures. The D coefficients obey an Arrhenius law : D=2.57×10-5exp( -Ea RT)cm2s-1. with Ea = 2.6 KJ.mol-1. Only 22 % of Cu+ ions are implied in the diffusion motions compared to 50 % of Ag+ ions in the superionic AgPO3-AgI glass. The activation energy is much lower than the results previously obtained on Ag+ glasses. The motion described here certainly occurs locally without leading to long range diffusion which is involved in ionic conductivity.

Original languageEnglish (US)
Pages (from-to)535-544
Number of pages10
JournalMaterials Research Bulletin
Volume24
Issue number5
DOIs
StatePublished - 1989
Externally publishedYes

Fingerprint

Cations
Neutrons
Positive ions
Ions
cations
neutrons
time of flight spectrometers
Glass
glass
Deconvolution
Ionic conductivity
Neutron scattering
Full width at half maximum
ion currents
Spectrometers
ions
neutron scattering
conductors
Activation energy
activation energy

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Etude de la diffusion des cations Cu+ dans le verre (CuPO3)0.5(CuI)0.5 par diffusion quasielastique des neutrons. / Rousselot, C.; Mercier, R.; Malugani, J. P.; Tachez, M.; Angell, Charles; Dianoux, A. J.

In: Materials Research Bulletin, Vol. 24, No. 5, 1989, p. 535-544.

Research output: Contribution to journalArticle

Rousselot, C. ; Mercier, R. ; Malugani, J. P. ; Tachez, M. ; Angell, Charles ; Dianoux, A. J. / Etude de la diffusion des cations Cu+ dans le verre (CuPO3)0.5(CuI)0.5 par diffusion quasielastique des neutrons. In: Materials Research Bulletin. 1989 ; Vol. 24, No. 5. pp. 535-544.
@article{178415d50505472d86cd412cbe947aa0,
title = "Etude de la diffusion des cations Cu+ dans le verre (CuPO3)0.5(CuI)0.5 par diffusion quasielastique des neutrons",
abstract = "A neutron scattering experiment was performed on the fast ionic conductor (CuPO3)0.5(CuI)0.5 using the time-of-flight spectrometer IN6 with the following parameters: λ = 5,1 A ̊, resolution (FWHM) Eo = 80 μev, 1.44 < Q < 2.04 A ̊-1. The spectra essentially consist of a quasielastic broadening of the elastic peak with a long inelastic tail up to 20 meV. The deconvolution of elastic and quasielastic contribution gives a constant value of the purely elastic contribution : 90 {\%} for three temperatures. The D coefficients obey an Arrhenius law : D=2.57×10-5exp( -Ea RT)cm2s-1. with Ea = 2.6 KJ.mol-1. Only 22 {\%} of Cu+ ions are implied in the diffusion motions compared to 50 {\%} of Ag+ ions in the superionic AgPO3-AgI glass. The activation energy is much lower than the results previously obtained on Ag+ glasses. The motion described here certainly occurs locally without leading to long range diffusion which is involved in ionic conductivity.",
author = "C. Rousselot and R. Mercier and Malugani, {J. P.} and M. Tachez and Charles Angell and Dianoux, {A. J.}",
year = "1989",
doi = "10.1016/0025-5408(89)90100-1",
language = "English (US)",
volume = "24",
pages = "535--544",
journal = "Materials Research Bulletin",
issn = "0025-5408",
publisher = "Elsevier Limited",
number = "5",

}

TY - JOUR

T1 - Etude de la diffusion des cations Cu+ dans le verre (CuPO3)0.5(CuI)0.5 par diffusion quasielastique des neutrons

AU - Rousselot, C.

AU - Mercier, R.

AU - Malugani, J. P.

AU - Tachez, M.

AU - Angell, Charles

AU - Dianoux, A. J.

PY - 1989

Y1 - 1989

N2 - A neutron scattering experiment was performed on the fast ionic conductor (CuPO3)0.5(CuI)0.5 using the time-of-flight spectrometer IN6 with the following parameters: λ = 5,1 A ̊, resolution (FWHM) Eo = 80 μev, 1.44 < Q < 2.04 A ̊-1. The spectra essentially consist of a quasielastic broadening of the elastic peak with a long inelastic tail up to 20 meV. The deconvolution of elastic and quasielastic contribution gives a constant value of the purely elastic contribution : 90 % for three temperatures. The D coefficients obey an Arrhenius law : D=2.57×10-5exp( -Ea RT)cm2s-1. with Ea = 2.6 KJ.mol-1. Only 22 % of Cu+ ions are implied in the diffusion motions compared to 50 % of Ag+ ions in the superionic AgPO3-AgI glass. The activation energy is much lower than the results previously obtained on Ag+ glasses. The motion described here certainly occurs locally without leading to long range diffusion which is involved in ionic conductivity.

AB - A neutron scattering experiment was performed on the fast ionic conductor (CuPO3)0.5(CuI)0.5 using the time-of-flight spectrometer IN6 with the following parameters: λ = 5,1 A ̊, resolution (FWHM) Eo = 80 μev, 1.44 < Q < 2.04 A ̊-1. The spectra essentially consist of a quasielastic broadening of the elastic peak with a long inelastic tail up to 20 meV. The deconvolution of elastic and quasielastic contribution gives a constant value of the purely elastic contribution : 90 % for three temperatures. The D coefficients obey an Arrhenius law : D=2.57×10-5exp( -Ea RT)cm2s-1. with Ea = 2.6 KJ.mol-1. Only 22 % of Cu+ ions are implied in the diffusion motions compared to 50 % of Ag+ ions in the superionic AgPO3-AgI glass. The activation energy is much lower than the results previously obtained on Ag+ glasses. The motion described here certainly occurs locally without leading to long range diffusion which is involved in ionic conductivity.

UR - http://www.scopus.com/inward/record.url?scp=0024667768&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024667768&partnerID=8YFLogxK

U2 - 10.1016/0025-5408(89)90100-1

DO - 10.1016/0025-5408(89)90100-1

M3 - Article

AN - SCOPUS:0024667768

VL - 24

SP - 535

EP - 544

JO - Materials Research Bulletin

JF - Materials Research Bulletin

SN - 0025-5408

IS - 5

ER -