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首页> 外文会议>China International Conference on High Performance Ceramics >Preparation and Electrical Properties of Interconnect Material Made by Substituting Mixed Rare Earth Oxides (Sm{sub}2O{sub}3, Gd{sub}2O{sub}3, Eu{sub}2O{sub}3 and CeO{sub}2) for La{sub}2O{sub}3 in La{sub}(1-x)Ca{sub}xCrO{sub}3 (0.1 ≤ x ≤ 0.4)
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Preparation and Electrical Properties of Interconnect Material Made by Substituting Mixed Rare Earth Oxides (Sm{sub}2O{sub}3, Gd{sub}2O{sub}3, Eu{sub}2O{sub}3 and CeO{sub}2) for La{sub}2O{sub}3 in La{sub}(1-x)Ca{sub}xCrO{sub}3 (0.1 ≤ x ≤ 0.4)

机译：用混合稀土氧化物代替互连材料的制备和电性能（SM {SUM} 2O} 3，GD {SUB} 2O} 3，eu {sub} 2o {sub} 3和CEO {sub} 2 la {sub}（1-x）Ca {sub} xcro {sub} 3（0.1≤x≤0.4）的la {sub} 2o {sub} 3。

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La{sub}(1-x)Ca{sub}xCrO{sub}3 (0.1 ≤ x ≤ 0.4) is usually used as interconnect material for solid oxide fuel cells (SOFCs). In this paper, composite material, the two-phase mixtures of face-centered cubic fluorite structure Ca{sub}yCe{sub}(1-y)O{sub}(2-y)(0 ≤ y ≤ 0.2) and orthorhombic perovskite structure [Sm(Eu,Gd)]{sub}(1-z)Ca{sub}zCrO{sub}3 (0 < z < 0.3), was prepared by an auto-ignition process in which mixed rare earth oxides (Sm{sub}2O{sub}3, Gd{sub}2O{sub}3, Eu{sub}2O{sub}3 and CeO{sub}2) are substituted for La{sub}2O{sub}3 in La{sub}(1-x)Ca{sub}xCrO{sub}3. The direct current (DC) four-probe technique measurement indicated that the electrical conductivities of specimens increased along with the increase of Ca{sup}(2+) content (x), especially when x=0.3 and 0.4. The material (x=0.4, about 94% relative density) showed excellent electrical conductivities of 48 Scm{sup}(-1) in air and 13 Scm{sup}(-1) in H{sub}2 (purity 99.999%) at 700°Crespectively, which is about 3 times as high as that of La{sub}0.7Ca{sub}0.3CrO{sub}3.
机译：拉{子}（1-X）的Ca {子} xCrO {子} 3（0.1≤X≤0.4）通常被用作用于固体氧化物燃料电池（SOFC）互连材料。在本文中，复合材料，面心立方萤石结构的Ca {子} YCE {子}（1-Y）O {子}（2-Y）（0≤Ý≤0.2）和斜方晶的两相混合物钙钛矿结构[SM（铕，钆）] {子}（1-z）的钙{子} zCrO {子} 3（0ž<0.3 <），是由一个自动点火方法制备，其中的混合稀土氧化物（ SM {子} 2O {子} 3，钆{子} 2O {子} 3，Eu的{子} 2O {子} 3和的CeO {子} 2）代的La {子} 2O {子} 3在La {子}（1-X）的Ca {子} xCrO {子} 3。直流（DC）四探针技术测量表明，试样的电导率用Ca {SUP}的增加（2+）的含量（x）的增加一起，尤其是当x = 0.3和0.4。 H中{子} 2（纯度99.999％）的材料（X = 0.4，约94％的相对密度）表现出48 SCM {SUP}的优异电导率（ - - 1）在空气中和13 SCM {SUP} ...（1）在700℃Crespectively，这是约3倍高与La {子} 0.7Ca {子} 0.3CrO {子} 3。

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