High-RRR Niobium

The Nuclear Fuel Complex (NFC) has successfully developed indigenous technology to produce High Residual Resistivity Ratio (RRR) Niobium ingots and sheets in October 2025.

  • High RRR Niobium is a critical material for advanced accelerator programs in nuclear energy, materials research, and other high-technology applications.
  • Residual Resistivity Ratio (RRR) is defined as the ratio of electrical resistivity at room temperature to that near absolute zero.
  • A high RRR value (typically >250–300) indicates extremely high purity and low impurity scattering, which is essential for efficient superconductivity.
  • NFC plans to scale up production, strengthening India’s self-reliance in superconducting accelerator technology.
  • For expanding the Pressurized Heavy Water ....
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