Materials for molten salt facing parts: challenges and opportunities for nuclear thermochemical cycle electrolysis.

Faisal, Nadimul; Rajendran, Vinooth; Prathuru, Anil; Hossain, Mamdud

Abstract

One of the important challenges is to develop coating materials for thermochemical containment vessels and pipes that encounters the highly corrosive and harsh environment produced by the molten salt at high temperature. The aim of this review is to summarise structural and coating materials (mainly thermally sprayed) that can withstand thermochemical cycle corrosive environment. This review presents findings published in the scientific literature related to high temperature aggressive corrosion of materials, specifically geared towards nuclear thermochemical cycles leading to hydrogen production. Data related to materials, composition, synthesis have been gathered. Corrosion environment data such as environment, test time, test results have been reviewed. Structure-property relations of different materials reviewed as a part of this exercise will aid in the material selection process for future development. The overall assessment based on the evidence from previous investigations in this area is that none of the high-performance structural materials (coating, substrates) are likely to survive for an extended period in the high temperature corrosive environment. However, there are means and methods which could be considered to have sustainable coating-substrate assembly and extended lifetime. This review presents challenge and assess opportunities that will warrant efficient hydrogen production with stable thermochemical structure for operation at molten salt reactor (MSR) nuclear plants (e.g., thermochemical electrolysis leading to water splitting and hydrogen production) as well as other power plants, boilers, and waste incinerators.

Citation

FAISAL, N., RAJENDRAN, V., PRATHURU, A. and HOSSAIN, M. 2023. Materials for molten salt facing parts: challenges and opportunities for nuclear thermochemical cycle electrolysis. Presented at the 5th International conference on structural nano composites 2023 (NANOSTRUC 2023), 24-26 May 2023, Nicosia, Cyprus: [virtual event].

• Presentation Conference Type: Lecture
• Conference Name: 5th International conference on structural nano composites 2023 (NANOSTRUC 2023): novel materials for future
• Conference Location: Nicosia, Cyprus
• Start Date: May 24, 2023
• End Date: May 26, 2023
• Deposit Date: Jun 1, 2023
• Publicly Available Date: Jun 1, 2023
• Keywords: Coating materials; Thermochemicals; Thermal spray coatings; Corrosion monitoring; Hydrogen
• Public URL: https://rgu-repository.worktribe.com/output/1977515