Fusion. Rosatom researchers and their colleagues from the National University of Science and Technology developed a new material for the innovative ‘reactor technology’ tokamak (RTT). This material will be employed to make plasma-facing components of the divertor. The researchers suggested using a tungsten-copper composite with a tungsten matrix made with additive technology. Combining exceptional thermal conductivity, strength and ductility properties, the composite can form a heat-dissipating base layer to which protective cladding will be soldered. Samples of the new material have been subjected to mechanical tests, thermal conductivity analysis by laser flash method and microscopic studies, and demonstrated good performance. RTT is a prototype fusion reactor with a tokamak featuring a long discharge pulse, strong magnetic field, and an electromagnetic system made of high-temperature superconductors. Many cutting-edge technologies, unavailable anywhere else in the world, will be tested at TRT for the first time.