Synthesis, thermal expansion and high-temperature electrical conductivity of Co-doped (Y,Са)FeO3−δ with orthorhombic perovskite structure

2015 ◽  
Vol 66 ◽  
pp. 239-243 ◽  
Author(s):  
A.S. Kalyuzhnaya ◽  
O.A. Drozhzhin ◽  
S.Ya. Istomin ◽  
A.A. Gippius ◽  
S.M. Kazakov ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Thermal Expansion ◽  
High Temperature ◽  
Perovskite Structure ◽  
Orthorhombic Perovskite ◽  
Co Doped

scholarly journals Effects of Sr and Mn co-doping on microstructural evolution and electrical properties of LaAlO3

2019 ◽  
Vol 13 (4) ◽  
pp. 333-341
Author(s):  
Lúcia Villas-Boas ◽  
Celso Goulart ◽  
de Ferreira
Keyword(s):  
Electrical Conductivity ◽  
Catalytic Activity ◽  
Electrical Properties ◽  
Perovskite Structure ◽  
Dopant Concentration ◽  
Microstructural Development ◽  
Co Doping ◽  
Total Electrical Conductivity ◽  
Electrode Reactions ◽  
Co Doped

In this work, we investigate the effects of Sr and Mn co-doping on the microstructural development and electrical properties of LaAlO3 synthesised by solid state reaction and sintered at 1500 and 1600?C. The addition of Sr and Mn contributed to the crystallization and stabilization of the perovskite structure. However, the addition of Sr alone lead to the formation of heterogeneous microstructure, while the combined effect of Sr and Mn improved Al and La homogeneity in the perovskite structure. Total electrical conductivity is enhanced by three orders of magnitude with Sr addition (La0.8Sr0.2AlO3-?: 5.74 ? 10?4 S/cm at 600?C) and five orders of magnitude with Mn co-doping (La0.8Sr0.2Al0.8Mn0.2O3-?: 3.6 ? 10?2 S/cm at 600?C) compared to the undoped LaAlO3 (2.96 ? 10?6 S/cm at 600?C). The Sr and Mn co-doped LaAlO3 present favourable catalytic activity for electrode reactions even with a low dopant concentration (20mol%).

NILO ALLOY 36

Alloy Digest ◽  
1987 ◽  
Vol 36 (8) ◽  
Keyword(s):  
Thermal Expansion ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Surface Treatment ◽  
Constant Coefficient ◽  
Coefficient Of Thermal Expansion ◽  
Heat Treating ◽  
Temperature Performance ◽  
Iron Nickel

Abstract NILO alloy 36 is a binary iron-nickel alloy having a very low and essentially constant coefficient of thermal expansion at atmospheric temperatures. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-79. Producer or source: Inco Alloys International Inc..

UNISPAN LR35

Alloy Digest ◽  
1971 ◽  
Vol 20 (1) ◽  
Keyword(s):  
Thermal Expansion ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Coefficient Of Thermal Expansion ◽  
Heat Treating ◽  
Temperature Performance ◽  
Operational Level

Abstract UNISPAN LR35 offers the lowest coefficient of thermal expansion of any alloy now available. It is a low residual modification of UNISPAN 36 for fully achieving the demanding operational level of precision equipment. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and surface treatment. Filing Code: Fe-46. Producer or source: Cyclops Corporation.

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