Impact of liquid sodium corrosion on microstructure and electrical properties of yttrium-doped thoria prepared by co-precipitation
Source abstract
Abstract
Abstract Within the development of SFR nuclear reactors, yttrium-doped thoria has been suggested by previous researchers as an electrolyte in sensors monitoring oxygen in liquid sodium. In this paper, Th1-xYxO2-x/2 electrical properties were assessed by impedance spectroscopy before their chemical durability was evaluated in liquid sodium. Pellets always kept their mechanical integrity although sodium penetration was evidenced through the modification of the cleavage surfaces. Post-immersion impedance spectroscopy showed a decrease of grain boundaries contribution, even if the global conductivity was not significantly affected. These good performances could be strongly affected by the presence of impurities since silicon-doping increased the sodium penetration.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electronic and Structural Properties of Oxides · Advancements in Solid Oxide Fuel Cells · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (59)
Show source-provided references
1. Generation IV International Forum: a decade of progress through international cooperation10.1016/j.pnucene.2014.02.010 ↗
2. 35 years of operating experience of PHENIX NPP sodium cooled fast reactor, icone 17
3. New considerations on the kinetics of mass transfer in sodium fast reactors: an attempt to consider irradiation effects and low temperature corrosion10.1016/j.jnucmat.2012.01.019 ↗
4. Instrumentation for liquid-sodium in nuclear-reactors10.1088/0022-3735/7/2/001 ↗
5. Development of a continuous meter for oxygen in sodium
6. Lattice parameters of thoria-yttria solid solutions10.1016/S0167-577X(00)00311-6 ↗
7. Electrical conduction in thoria and thoria-yttria as a function of oxygen pressure10.1063/1.1727473 ↗
8. Solid electrolytes with oxygen ion conduction10.1016/0167-2738(84)90024-9 ↗
9. Mixed conduction in ThO2 and ThO2-Y2O3 solutions10.1524/zpch.1966.49.3_5.198 ↗
10. Factors influencing performance of solid oxide electrolytes in high-temperature thermodynamic measurements
11. Oxygen ion conductors10.1016/S1369-7021(03)00332-8 ↗
12. Preparation, characterization and sintering of yttrium-doped ThO2 for oxygen sensors applications10.1016/j.jallcom.2016.07.271 ↗
13. Electrical-conductivity in ThO2-YO1.5 system. 1. Experimental study and electronic conductivity10.1051/jcp/197572431 ↗
14. Complex impedance of electrochemical cells based on yttria doped thoria10.1016/0025-5408(76)90013-1 ↗
15. Electrical properties and defect structure of ThO210.1111/j.1151-2916.1970.tb15987.x ↗
16. Evolution of the development of in-sodium oxygen sensor and its present status10.1149/2.1191607jes ↗
17. Development of an electrochemical oxygen sensor for liquid sodium using a yttria stabilized zirconia electrolyte10.1149/2.0021702jes ↗
18. Development of sensors for on-line monitoring of nonmetallic impurities in liquid sodium10.1080/18811248.2011.9711723 ↗
19. Ionic-conductivity of Th0.85Y0.15O1.925 below 500 °C
20. Potential measurements on a Si, SiO2 electrode using a ThO2-Y2O3 electrolyte10.1149/1.2408070 ↗
21. Fabrication and characterization of ThO2-Y2O3 solid electrolyte tubes
22. Influence of liquid sodium on mechanical properties of steels, refractory alloys and ceramics
23. Electrochemical techniques for monitoring dissolved carbon, hydrogen and oxygen in Liquid-Sodium10.1016/0022-3115(82)90137-4 ↗
24. Testing and performance of electrolytic oxygen meters for use in liquid-sodium10.1016/0022-3115(83)90339-2 ↗
25. Development of electrochemical oxygen meter for liquid-sodium10.1016/0167-2738(84)90052-3 ↗
26. Developments pertaining to electrochemical oxygen meters
27. The manufacture and properties of ceramic probes to measure oxygen content in liquid sodium
28. Densification behavior and microstructure evolution of yttrium-doped ThO2 ceramics10.1016/j.jeurceramsoc.2017.04.015 ↗
29. Synthesis and characterization of Th1-xLnxO2-x/2 mixed-oxides10.1016/j.materresbull.2012.08.068 ↗
30. Multiparametric dissolution of thorium-cerium dioxide solid solutions10.1021/ic201699t ↗
31. Sodium chemistry
32. Synthesis and characterization of sodium alkoxides10.1007/BF02704612 ↗
33. Sodium cleaning procedures for pec prototype mechanisms10.13182/NT85-A15967 ↗
34. Galvanic cells for the determination of the standard molar free energy of formation of metal halides, oxides, and sulfides at elevated temperatures10.1149/1.2428567 ↗
35. Defect structure and transport properties
36. Fast oxygen transport in acceptor doped oxides10.1016/S0167-2738(99)00313-6 ↗
37. Densification of yttria-stabilized zirconia - impedance spectroscopy analysis10.1149/1.1837416 ↗
38. Gabard · 2013
39. Blocking grain boundaries in yttria-doped and undoped ceria ceramics of high purity10.1111/j.1151-2916.2003.tb03281.x ↗
40. 3D-SEM height maps series to monitor materials corrosion and dissolution10.1016/j.matchar.2019.02.017 ↗
41. Joseph · 1998
42. Sodium compatibility of ceramics10.1007/978-1-4615-1977-5_9 ↗
43. The compatibility of alumina ceramics with liquid-sodium10.1016/0022-3115(83)90213-1 ↗
44. Electrical properties of the grain boundaries of oxygen ion conductors: acceptor-doped zirconia and ceria10.1016/j.pmatsci.2005.07.001 ↗
45. Solute segregation and grain-boundary impedance in high-purity stabilized zirconia10.1111/j.1151-2916.1996.tb08569.x ↗
46. Model for ion-blocking at internal interfaces in zirconias10.1016/0167-2738(94)00143-G ↗
47. Ionic conductivities, sintering temperatures and microstructures of bulk ceramic CeO2 doped with Y2O310.1016/S0167-2738(00)00717-7 ↗
48. Insitu study of the sintering process of yttria stabilized zirconia by impedance spectroscopy10.1016/0167-2738(83)90120-0 ↗
49. Effect of impurities on sintering and conductivity of yttria-stabilized zirconia10.1007/BF01203473 ↗
50. Properties of thoria-yttria solid electrolytes prepared by the citrate technique10.1016/S0167-577X(97)00052-9 ↗
51. Microstructure and physical-properties of transparent thoria yttria ceramics10.1007/BF00543644 ↗
52. Some physical-properties of calcia and yttria stabilized ThO2 ceramics10.1007/BF01594254 ↗
53. Ceria-based solid electrolytes—review10.1016/0167-2738(95)00229-4 ↗
54. Ionic-conductivity of fully stabilized ZrO2-MgO and blocking effects10.1016/0955-2219(95)91299-4 ↗
55. Yttria zirconia - effect of microstructure on conductivity10.1007/BF01161187 ↗
56. Electric conduction-blocking effects of voids and 2nd phases in stabilized zirconia10.1007/BF00331217 ↗
57. Joining steel to yttria-doped hafnia with a reactive brazing for a potentiometric oxygen sensor in sodium
58. Thermodynamic studies on Rb2ThO3(s)10.1016/j.jallcom.2005.02.007 ↗
59. A general equation for the solubility of oxygen in liquid sodium