【科技日报】聚变堆“夸父”设施关键部件制成

Core Insights - The CRAFT project, led by the Hefei Institute of Physical Science, has made significant progress with the successful testing and acceptance of the prototype component of the divertor, which is crucial for fusion reactors [1][2] - The prototype divertor component has achieved a steady-state thermal load capacity of 20 megawatts per square meter, marking it as the largest and highest thermal load divertor prototype designed in China [1] - The innovative design of the divertor includes a hybrid divertor cladding integration scheme, theoretically increasing the tritium breeding ratio by over 3%, providing an effective pathway for achieving tritium self-sufficiency [1] Technical Achievements - The divertor prototype's design allows for effective temperature control of the tungsten surface, keeping it below the recrystallization temperature, thus achieving ultra-high thermal load [1] - The development process has established stable quality routes through hot isostatic pressing and brazing explosion welding, promoting the advancement of domestic fusion reactor materials such as potassium tungsten, dispersion-strengthened copper, and low-activation steel [1] Future Applications - The successful development of the divertor prototype signifies that China's divertor research and development capabilities are now self-controlled, laying a solid technical foundation for future engineering applications in fusion reactors [2] - The related technologies can also support other fusion devices facing plasma components and can be extended to applications in aerospace, high-end medical equipment, industrial electronics, and new energy vehicles [2]