Protective Coatings for Accident Tolerant Fuel Claddings - A Review

• 발행기관: 한국방사성폐기물학회
• 저자명: Rofida Hamad Khlifa Nicolay N. Nikitenkov
• 간행물 정보: 『Journal of Nuclear Fuel Cycle and Waste Technology (JNFCWT)』Vol.21 No.1, 115~147쪽, 전체 33쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2023.03.30

국문 초록

The Fukushima accident in 2011 revealed some major flaws in traditional nuclear fuel materials under accidental conditions. Thus, the focus of research has shifted toward “accident tolerant fuel” (ATF). The aim of this approach is to develop fuel material solutions that lead to improved reactor safety. The application of protective coatings on the surface of nuclear fuel cladding has been proposed as a near-term solution within the ATF framework. Many coating materials are being developed and evaluated. In this article, an overview of different zirconium-based alloys currently in use in the nuclear industry is provided, and their performances in normal and accidental conditions are discussed. Coating materials proposed by different institutions and organizations, their performances under different conditions simulating nuclear reactor environments are reviewed. The strengths and weaknesses of these coatings are highlighted, and the challenges addressed by different studies are summarized, providing a basis for future research. Finally, technologies and methods used to synthesize thin-film coatings are outlined.

키워드

Accident tolerant fuel Protective coatings Nuclear fuel cladding Corrosion of Zr-based alloys