293-K Conductivity Optimization for Single Crystals of Solid Electrolytes with Tysonite Structure (LaF_3): I. Nonstoichiometric Phases R_(1-y)CayF_(3-y) (R = La-Lu, Y)

B. P. Sobolev; N. I. Sorokin; E. A. Krivandina; Z. I. Zhmurova

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293-K Conductivity Optimization for Single Crystals of Solid Electrolytes with Tysonite Structure (LaF_3): I. Nonstoichiometric Phases R_(1-y)CayF_(3-y) (R = La-Lu, Y)

机译：具有硫铝石结构的固体电解质（LaF_3）单晶的293-K电导率优化：I.非化学计量相R_（1-y）CayF_（3-y）（R = La-Lu，Y）

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The systematic optimization of single-crystal fluoride-conducting solid electrolytes R_(1-y)Ca_yF_(3-y) with a tysonite type structure (LaF_3) with respect to the conductivity at room temperature, σ(293 K), is based on high-temperature measurements of σ(T) of stoichiometric fluorides of rare earth elements, RF_3 (R = La-Nd), in dependence of the radius R~(3+) (r_(R~(3+))); two-component stoichiometric La_(1-y)R_yF_3 phases (R = Pr, Nd) in dependence on the average cation radius (r_(cat)); and two-component nonstoichiometric phases R_(1-y)Ca_yF_(3-y) (R = La-Lu, Y) in dependence of the CaF_2 content. The optimization of the composition with respect to thermal stability is based on studying the phase diagrams of CaF_2-RF_3 systems and the behavior of R_(1-y)CayF_(3-y) crystals upon heating when measuring temperature dependences σ(T). Singlecrystal samples of a number of investigated R_(1-y)Ca_yF_(3-y) compounds has σ(293 K) values high enough to be applied in solid-state electrochemical devices operating at room temperature (chemical sensors, fluorine-ion batteries, and accumulators) and in devices subjected to thermal cycling.

机译：基于钛铁矿型结构（LaF_3）的单晶氟化物固体电解质R_（1-y）Ca_yF_（3-y）在室温下电导率σ（293 K）的系统优化取决于半径R〜（3+）（r_（R〜（3+）））的稀土元素RF_3（R = La-Nd）的化学计量氟化物σ（T）的高温测量;取决于平均阳离子半径（r_（cat））的两组分化学计量La_（1-y）R_yF_3相（R = Pr，Nd）;依赖于CaF_2含量的两组分非化学计量相R_（1-y）Ca_yF_（3-y）（R = La-Lu，Y）。在研究温度依赖性σ（T）时，基于CaF_2-RF_3系统的相图和R_（1-y）CayF_（3-y）晶体在加热时的行为，对成分的热稳定性进行了优化。许多研究的R_（1-y）Ca_yF_（3-y）化合物的单晶样品的σ（293 K）值足够高，可用于在室温下操作的固态电化学装置（化学传感器，氟离子电池）和蓄能器）以及受热循环影响的设备中。

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《Crystallography reports》 |2014年第4期|共13页
作者
B. P. Sobolev; N. I. Sorokin; E. A. Krivandina; Z. I. Zhmurova;
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正文语种 eng
中图分类晶体学;
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293-K; Conductivity Optimization; Single Crystals;

机译：293-K;电导率优化;单晶;

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1. 293-K Conductivity Optimization for Single Crystals of Solid Electrolytes with Tysonite Structure (LaF_3): I. Nonstoichiometric Phases R_(1-y)CayF_(3-y) (R = La-Lu, Y) [J] . B. P. Sobolev, N. I. Sorokin, E. A. Krivandina, Crystallography reports . 2014,第4期

机译：具有硫铝石结构的固体电解质（LaF_3）单晶的293-K电导率优化：I.非化学计量相R_（1-y）CayF_（3-y）（R = La-Lu，Y）
2. Anionic high-temperature conduction in single crystals of nonstoichiometric phases R1-yMyF3-y (R = La-Lu, M = Ca, Sr, Ba) with the tysonite (LaF3) structure [J] . Sorokin NI, Sobolev BP Russian journal of electrochemistry . 2007,第4期

机译：具有钛矿结构（LaF3）的非化学计量相R1-yMyF3-y（R = La-Lu，M = Ca，Sr，Ba）单晶中的阴离子高温传导
3. Ionic conductivity properties and F-19 NMR investigation in Ln(1-y)Cd(y)F(3-y) (Ln=Ce, Nd) solid solutions with tysonite-type structure - Part I: Ionic conductivity properties [J] . El Omari M., Reau JM., Senegas J. Solid state ionics . 1998,第3a4期

机译：具有钛矿型结构的Ln（1-y）Cd（y）F（3-y）（Ln = Ce，Nd）固溶体中的离子电导性质和F-19 NMR研究-第一部分：离子电导性质
4. PREPARATION OF SINGLE CRYSTALS OF THE SUPERIONIC FAMILY R_(1-x)M_xF_(3-x) (R = La-Lu, Y; M=Ca, Sr, Ba) WITH THE TYSONITE (LaF_3) STRUCTURE [C] . N.I. Sorokin, E.A. Krivandina, Z.I. Zhmurova, Fourth International Conference on Single Crystal Growth and Heat amp; Mass Transfer (ICSC - 2001) Vol.1; Sep 24-28, 2001; Obninsk, Russia . 2001

机译：超音速族R_（1-x）M_xF_（3-x）（R = La-Lu，Y; M = Ca，Sr，Ba）的单晶与钛铁矿（LaF_3）结构的制备
5. Structure and Solid-state Phase Transitions of Micron-sized Single Crystals of Polyoxymethylene Revealed by Microprobe Technique of Vibrational Spectroscopy [D] . 森下, 浩史 1994

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6. Growth and defect crystal structure of CdF2 and nonstoichiometric Cd1−x R x F2+x phases (R = rare earth elements and In). Part 3. Crystal structure of As-grown Cd0.90 R 0.10F2.10(R = Sm-Lu, Y) single crystals [O] . E. A. Sul’yanova, A. P. Shcherbakov, V. N. Molchanov, 2005

机译：CDF2的生长和缺陷晶体结构和非核心CD1-X R X F2 + X相（R =稀土元素和in）。第3部分晶体结构的晶体结构为0.90 r 0.10f2.10（r = sm-lu，y）单晶

293-K Conductivity Optimization for Single Crystals of Solid Electrolytes with Tysonite Structure (LaF_3): I. Nonstoichiometric Phases R_(1-y)CayF_(3-y) (R = La-Lu, Y)

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