What material properties are required for nuclear fusion plasma-facing materials?
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Plasma-facing materials (PFMs) for nuclear fusion reactors necessitate specific properties. These include tolerance to high-power loads, long lifetime with low erosion and neutron damage resistance, and low tritium retention . Crystal lattice selection plays a crucial role, inhibiting defect generation and promoting self-interstitial solid solution strengthening . Tungsten, a prominent PFM, exhibits unique surface morphology like "nanofuzz" under certain plasma conditions . Understanding restoration mechanisms in tungsten is vital, as deformation-induced microstructural changes can impact mechanical properties during operation at high temperatures . Experimental studies on plasma-facing materials like graphite, tungsten, and silicon carbide have shown the importance of radiation damage levels, erosion dynamics, surface microstructure changes, and deuterium retention for effective PFM performance .
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6 Citations | Material properties required for nuclear fusion plasma-facing materials include thermal stability, ductility at high temperatures, resistance to recrystallization-induced brittleness, and understanding of restoration mechanisms for prolonged operation at elevated temperatures. |
| Tungsten is crucial for nuclear fusion plasma-facing materials due to its resistance to nanofuzz formation under He plasma exposure, requiring a detailed understanding of surface morphology. | |
11 Jan 2023 | Material properties required for nuclear fusion plasma-facing materials include resistance to crystal lattice defects, corrosion, thermal conductivity, nonmagnetism, and the ability to inhibit Frenkel pair generation. |
| Properties needed for nuclear fusion plasma-facing materials are tolerance to high power load, long lifetime with low erosion and neutron damage, and low tritium retention for self-sufficiency and safety. | |
1 Citations | Materials for nuclear fusion plasma-facing require high radiation tolerance, erosion resistance, and low tritium retention. Graphite, tungsten, and silicon carbide are studied for these properties in the paper. |
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