Cleaned tungsten wire has specific applications in nuclear reactors, primarily in high-temperature and radiation-resistant scenarios:
- High-Temperature Sensors: Cleaned tungsten wire is used as the conductor in thermocouples or resistance thermometers to measure core temperatures up to 2000°C. Its high temperature resistance and neutron irradiation resistance ensure long-term reliability.
- Control Rod Drive Components: The high strength and corrosion resistance of cleaned tungsten wire make it suitable for manufacturing miniature components in control rod drive mechanisms, such as springs or wires, enabling precise control of neutron flux.
- Electrode Material: In reactor plasma research or fuel processing equipment, cleaned tungsten wire serves as an electrode due to its arc resistance and high-temperature performance.
- Shielding Reinforcement: Tungsten’s high density allows it to be used as a reinforcement material in certain radiation shielding components. Combined with the fine structure of cleaned tungsten wire, this optimizes shielding design.
It should be noted that pure tungsten may become brittle under neutron irradiation; therefore, doped tungsten (such as potassium-doped) or tungsten alloys (such as W-Re) are commonly used to enhance irradiation resistance.
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