Depleted UO2 Fuel Kernel for TRISO Particles
Depleted uranium dioxide (UO2) kernels serve as the fissile core in TRISO (TRi-structural ISOtropic) nuclear fuel particles for high-temperature reactors. Classified under HTS 2844.30.20.10 as uranium oxide compounds before coating application. These microspheres enable advanced Gen IV reactor designs.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If tritium or transuranic compounds
Different radioactive isotopes have separate headings.
If catalyst preparations
Nuclear catalysts may fall under Chapter 38 if not meeting radioactivity criteria.
If in ceramic dispersion
TRISO matrix forms classified as dispersions/cermets rather than pure oxides.
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Import Tips & Compliance
• Specify kernel diameter and density in documentation; ensure IP-2 packaging compliance
• Common error: classifying coated TRISO as finished fuel element
Related Products under HTS 2844.30.20.10
Depleted Uranium Dioxide Powder (UO2)
Depleted uranium dioxide (UO2) powder is a chemically defined compound of uranium depleted in U235, used primarily as an intermediate in nuclear fuel fabrication. It falls under HTS 2844.30.20.10 as a uranium oxide compound, distinct from enriched uranium products. This fine powder requires stringent handling due to its radioactive properties.
Thorium Dioxide (ThO2) Powder
Thorium dioxide (ThO2), also known as thoria, is a chemically defined compound used in high-temperature ceramics and historical gas mantle production. Classified under HTS 2844.30.20.10 as a thorium oxide compound with low specific radioactivity. Its refractory properties make it valuable in specialized industrial applications.
Uranium Trioxide (UO3) Yellowcake Derivative
Uranium trioxide (UO3) is an orange-yellow powder derived from yellowcake processing, a key intermediate in uranium oxide production depleted in U235. It qualifies under HTS 2844.30.20.10 specifically for uranium oxide compounds. Primarily used in nuclear fuel cycle processing.
Mixed Uranium-Thorium Oxide (U/Th)O2 Sintered Pellets
Sintered pellets of mixed uranium and thorium oxides, depleted in U235, used in advanced nuclear reactor fuels like thorium cycle systems. Falls under HTS 2844.30.20.10 as uranium oxide compounds (primary component). These ceramic forms maintain specific radioactivity limits per chapter notes.
Thorium Oxide Ceramic Crucible Material
High-purity thorium dioxide powder for fabricating crucibles used in rare earth metal melting due to its extreme thermal stability. Meets HTS 2844.30.20.10 as thorium oxide compound with controlled radioactivity. Essential for high-temperature metallurgical processing.
Uranyl Nitrate to UO2 Conversion Intermediate
UO2 powder produced via thermal denitration of uranyl nitrate from depleted uranium conversion processes. Specifically classified under HTS 2844.30.20.10 as uranium oxide. Critical step in nuclear fuel manufacturing cycle.