Self-diffusion of Silver Ions in the Cubic High Temperature Modification of Silver Iodide

Kvist, Arnold; Tärneberg, Roy

doi:10.1515/zna-1970-0219

Cited by 79 publications

(23 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5. The present results at 400 and 500 ~ are very close to those which were taken from the results of tracer detection [ 11].…”

Section: Derivation Of the Deviation From Nernst-einstein's Relationsupporting

confidence: 89%

“…By fitting the relaxation curves, the chemical diffusion constant of (x-AgI at several temperatures is shown in Fig. 3 together with results obtained earlier by the tracer detection method [11]. The agreement between the present results and those of the tracer method is fair to good, although the present method includes a slightly larger error bar.…”

Section: Determination Of the Diffusion Coefficient Of A-aglsupporting

confidence: 82%

“…The temperature dependence of A in a-AgI. Data represented by circles are calculated from the tracer diffusion constant [11] and conductivity data [12]. D= lira --=r2/t ).…”

Section: Molecular Dynamics Simulation Of Rmentioning

confidence: 99%

See 2 more Smart Citations

Transport coefficients in superionic α-AgI

Kondo

Kusakabe

Tamaki

1999

Ionics

View full text Add to dashboard Cite

Abstract.A phenomenological theory is given for the time dependence of the relaxation process of an tx-AgI sample which has been previously polarized by the application of a voltage. The electromotive force caused by the internal electric field due to the polarized charge distribution is given by a series of exponential terms as a function of Dt, with D being the effective diffusion constant and t the time. The diffusion constants are obtained at several temperatures. In addition, the AC conductivity was measured for the same specimen. The results are analyzed with the help of a generalized Drude theory. Using both the results of the diffusion constant D and the AC conductivity, deviations from the Nernst-Einstein's relation are derived. Furthermore, computer simulations on these quantities were carried out by using well-established pairwise potentials. The agreement is satisfactory.

show abstract

“…5. The present results at 400 and 500 ~ are very close to those which were taken from the results of tracer detection [ 11].…”

Section: Derivation Of the Deviation From Nernst-einstein's Relationsupporting

confidence: 89%

Section: Determination Of the Diffusion Coefficient Of A-aglsupporting

confidence: 82%

See 1 more Smart Citation

Transport coefficients in superionic α-AgI

Kondo

Kusakabe

Tamaki

1999

Ionics

View full text Add to dashboard Cite

show abstract

“…In this section, we will justify the inverse mass ratio for the partial conductivities expressed as equation (13), by using NEMD simulation. A detailed description of the simulation is given elsewhere ΠΙ.…”

Section: Derivation Of Transport Coefficients Of Molten Nacl and Agl mentioning

confidence: 99%

Transport Properties in Molten Salts

Tamaki¹,

Kondo²,

Arai³

1999

High Temperature Materials and Processes

View full text Add to dashboard Cite

The partial conductivities in molten salts have been analyzed using a phenomenological theory and it was found that their ratio was expressed in terms of the inverse mass ratio of the constituents. This is confirmed by computer simulation for molten NaCl and Agl, when using proper pairwise potentials and the nonequilibrium molecular dynamics method.The diffusion constants for positive and negative ions in molten NaCl and Agl are also simulated. By using both results for the partial conductivities and the diffusion constants, it is found that the deviation from the Nernst-Einstein relation Δ is not unique but Δ + * Δ-Α new method has also been presented for experimentally deriving the diffusion constants D + and D~ in molten salts. Actual application has been carried out for molten Agl and the results are comparable to those obtained by computer simulation It is suggested that the AC measurement is useful for obtaining both Δ + and Δ".

show abstract

“…I n a-AgI, no definite sites can be assigned to the silver ions which have coefficients of self-diffusion comparable to those of liquids, i.e. about, 2 x lop5 cm2 5-1 a t 250 "C [3]. Strock [4,5] and Hoshino [2] proposed a large number of sites (42) available for the two silver ions within a cube of iodide ions, i.e.…”

Section: Introductionmentioning

confidence: 99%

Diffuse neutron scattering from β- and α-AgI

Fueß

Funke

Kalus

1975

Phys. Stat. Sol. (a)

View full text Add to dashboard Cite

The diffuse scattering from the Pand or-phases of silver iodide powder has been examined by neutrons of wavelength L = 1.07 A. In the case of the p-phase, the experimental results are explained by thermal diffuse scattering. I n the or-phase, an intense contribution t o the diffuse scattering is also due to the structural disorder of the silver ions. Possibly the cation disorder causes considerable quasistatic displacements of the iodide ions giving rise to supplementary diffuse scattering.Die diffuse Streuung a n pulverformigem Pund or-AgJ wird mit Neutronen der Wellen-Iange 1,07 A untersucht. I m Falle der P-Phase werden die MeSergebnisse als thermisch diffuse Streuung erkliirt. I n der cc-Phase bewirkt die strukturelle Fehlordnung der Silberionen einen weiteren starken Beitrag zur diffusen Streuung. Moglicheraeise verursacht die Kationen-Fehlordnung beachtliche quasistatische Auslenkungen der Jodionen und damit einen zusatzlichen Beitrag zur diffusen Streuung.

show abstract

Self-diffusion of Silver Ions in the Cubic High Temperature Modification of Silver Iodide

Cited by 79 publications

References 0 publications

Transport coefficients in superionic α-AgI

Transport coefficients in superionic α-AgI

Transport Properties in Molten Salts

Diffuse neutron scattering from β- and α-AgI

Contact Info

Product

Resources

About