Defect Structure and Ionic Transport in the MF2-RF3 (M = Ba, Sr; R = La - Lu, Y, Sc) Solid Solutions

2003 ◽  
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Author(s):  
Viera Trnovcová ◽  
N.I. Sorokin ◽  
P.P. Fedorov ◽  
L.S. Garashina ◽  
E.A. Krivandina ◽  
...  
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1988 ◽  
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P. LAGASSIE ◽  
J. GRANNEC ◽  
M. EL OMARI ◽  
J.-M. REAU

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2010 ◽  
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B. V. SLOBODIN ◽  
L. V. ZOLOTUKHINA ◽  
I. A. LEONIDOV ◽  
O. V. KORYAKOVA ◽  
E. V. ZABOLOTSKAYA ◽  
...  

1998 ◽  
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Aleksey A. Yaremchenko ◽  
Vladislav V. Kharton ◽  
Evgeny N. Naumovich ◽  
Alim A. Vecher

1998 ◽  
Vol 2 (5) ◽  
pp. 308-314 ◽  
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Aleksey A. Yaremchenko ◽  
Vladislav V. Kharton ◽  
Evgeny N. Naumovich ◽  
Anneta A. Tonoyan ◽  
Viktor V. Samokhval

2021 ◽  
Vol 63 (10) ◽  
pp. 1483
Author(s):  
M. Rastegaralam

Based on the electrophysical and structural data, a crystallophysical model of the ionic transport in superionic conductors Ba1-xLaxF2+x and Ca1-xYxF2+x (space group Fm¯3m), in which the charge carriers are mobile interstitial ions F− resulting from heterovalent substitutions of fluorite fragments of [M14F64] (M = Ca, Ba) by structural clusters of [M8R6F69] (R = La, Y). Single crystals of Ca1-xYxF2+x (0.02<x<0.16) and Ba1-xLaxF2+x (x = 0.31) solid solutions were obtained by directed crystallization of the melt. The mobility of ionic carriers in isostructural superionics Ba0.69La0.31F2.31, Ca0.84Y0.16F2.16, Pb0.67Cd0.33F2, and Pb0.9Sc0.1F2.1 are compared. Crystals of Ba1-xLaxF2+x and Ca1−xYxF2+x with improved conductometric and mechanical characteristics are promising active to replace the traditional CaF2 electrolyte in galvanic cells for thermodynamic research of chemicals.


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