Corrosion Resistance of Ceramics Based on SiC under Hydrothermal Conditions

Lobach, K.; Sayenko, S.Yu.; Shkuropatenko, V.A.; Voyevodin, V.N.; Zykova, H. V.; Zuyok, V.A.; Быков, А. О.; Tovazhnyanskyy, Leonid; Chunyaev, O. М.

doi:10.1007/s11003-020-00358-5

Cited by 8 publications

(2 citation statements)

References 19 publications

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“…On the contrary, yttria(Y 2 O 3 ) used with alumina [157] forms a eutectic compound (Y 3 Al 5 O 12 ) which acts as a protective barrier for corrosion. Similarly, adding chromium leads to the formation of chromium oxide, another protective oxide [158]. However, a precise balance between sintering additives and protective oxides needs to be considered to make the sintering possible while maintaining an acceptable corrosion behavior.…”

Section: The Use Of Silicon Carbide In the Nuclear Fieldmentioning

confidence: 99%

Behavior of Silicon Carbide Materials under Dry to Hydrothermal Conditions

et al. 2021

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Silicon carbide materials are excellent candidates for high-performance applications due to their outstanding thermomechanical properties and their strong corrosion resistance. SiC materials can be processed in various forms, from nanomaterials to continuous fibers. Common applications of SiC materials include the aerospace and nuclear fields, where the material is used in severely oxidative environments. Therefore, it is important to understand the kinetics of SiC oxidation and the parameters influencing them. The first part of this review focuses on the oxidation of SiC in dry air according to the Deal and Grove model showing that the oxidation behavior of SiC depends on the temperature and the time of oxidation. The oxidation rate can also be accelerated with the presence of H2O in the system due to its diffusion through the oxide scales. Therefore, wet oxidation is studied in the second part. The third part details the effect of hydrothermal media on the SiC materials that has been explained by different models, namely Yoshimura (1986), Hirayama (1989) and Allongue (1992). The last part of this review focuses on the hydrothermal corrosion of SiC materials from an application point of view and determine whether it is beneficial (manufacturing of materials) or detrimental (use of SiC in latest nuclear reactors).

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Section: The Use Of Silicon Carbide In the Nuclear Fieldmentioning

confidence: 99%

Behavior of Silicon Carbide Materials under Dry to Hydrothermal Conditions

et al. 2021

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“…The NSC KIPT scientists are involved in the development of SiC-based materials using method of high-speed hot pressing (HSHP) [51], and also, in the studies into the influence of alloying additives on the mechanical characteristics of the SiC [52] and its corrosion resistance under hydrothermal conditions [53]. The best corrosion resistance under hydrothermal test conditions was shown by the SiC ceramics with Cr additions.…”

Section: Sem Micrographs Of Metallographic Cross Sections Of E110 Tub...mentioning

confidence: 99%

Mechanisms of Radiation Damage and Development of Structural Materials for Operating and Advanced Nuclear Reactors

Voyevodin¹,

Tolstolutskaya²,

Tikhonovsky³

et al. 2021

Problems of Atomic Science and Technology

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Safety of nuclear reactor (NR) and economic of nuclear power are determined to high degree by structural materials. Study of reasons of change of physical-mechanical properties of materials and of their dimensional stability under irradiation; determination of operation life of elements of nuclear power energetic assemblies in different conditions, selection and development of prospective materials with high radiation resistance are the main objectives of radiation material science. In the presented paper, mechanisms of radiation damage of structural materials for nuclear power and problems of development of radiation-resistant materials for operating and advanced NR of new generation are examined.

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