Materials for DEMO and reactor applicati

The development of the DEMO reactor, a prototype for future fusion energy production, presents significant challenges primarily related to materials science. This study examines the material requirements for DEMO, highlighting the critical impacts of heat, particle, and neutron loads on material longevity. It identifies ongoing research and advancements in materials, emphasizing the integration of composite materials and novel alloys to enhance durability and performance, particularly for components such as the first wall and divertors. Key issues such as cracking, oxidation, and fuel management were systematically analyzed, revealing that materials like Wf/W composites and strengthened CuCrZr components, as well as oxidation-resistant tungsten alloys, are promising candidates for future applications. The research underscores the necessity of addressing neutron-induced phenomena like transmutation and embrittlement in designing effective materials for a fusion reactor environment. The findings advocate for a comprehensive approach in selecting materials that consider all relevant aspects essential for the successful realization of fusion energy, ultimately paving the way towards the operationalization of DEMO and future reactors.