Scandium-Doped Yttrium Oxide Powder
Yttrium oxide matrix doped with scandium for solid-state lighting phosphors. Yttrium remains predominant metal, classifying in 2846.90.20.15 as rare-earth oxide mixture.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If finished luminophore products
Chapter exclusion for luminophores used as such.
If predominantly chloride form
Rare-earth chlorides have separate subheading.
If parts of LED lighting assemblies
Converted to semiconductor devices in Chapter 85.
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Import Tips & Compliance
• Quantitative elemental analysis mandatory; avoid luminophore classification if pure powder
• Energy Star compliance for lighting end-use
Related Products under HTS 2846.90.20.15
Yttrium Oxide Powder (Y2O3)
High-purity yttrium oxide powder used in ceramics, superconductors, and phosphors for electronics. Classified under HTS 2846.90.20.15 as a rare-earth oxide with yttrium as the predominant metal, meeting Chapter 28 definitions for chemically defined inorganic compounds. Excludes mixtures with organic stabilizers or other exclusions in chapter notes.
Scandium Oxide (Sc2O3) High Purity
Scandium oxide powder, predominant scandium rare-earth oxide used in aerospace alloys and solid oxide fuel cells. Fits HTS 2846.90.20.15 as a mixture or pure rare-earth oxide with scandium predominant, distinct from cerium oxides or complex salts.
Yttria-Stabilized Zirconia Precursor Powder
Yttrium oxide-based powder mixture used as precursor for yttria-stabilized zirconia in dental and thermal barrier coatings. Classified in 2846.90.20.15 due to yttrium as predominant rare-earth metal in oxide form, prior to ceramic sintering.
Mixed Yttrium-Europium Oxide for Phosphors
Rare-earth oxide mixture with yttrium predominant, doped with europium for red phosphors in LED lighting. HTS 2846.90.20.15 applies to such yttrium-dominant rare-earth oxide mixtures, excluding luminophores in finished form.
High-Purity Scandium-Yttrium Oxide Blend
Blend of scandium and yttrium oxides with one predominant for use in high-strength aluminum-scandium alloys. Fits 2846.90.20.15 as rare-earth oxides containing yttrium or scandium as the main metal, chemically defined per Chapter 28.
Yttrium Oxide for Superconductor Doping
Ultra-high purity Y2O3 powder doped into YBCO high-temperature superconductors. Classified under 2846.90.20.15 for yttrium-predominant rare-earth oxides, unworked form per chapter notes.