Why 4N is the usual starting point

SOFC/SOEC material work often has tighter technical review needs than industrial alloy procurement. A 4N discussion should focus on purity, impurity profile, particle-size needs, additional testing, and sample evaluation path.

  • 4N Sc2O3/TREO reference result above 99.99%.
  • Relevant for SOFC/SOEC and advanced ceramic material programs.
  • Additional impurity or particle-size testing can be discussed.

Best inquiry format

The most useful inquiry includes the cell/material context, target grade, current specification sheet if available, destination country, sample quantity, and whether a reference report or extra testing is requested.

  • Share application and material role.
  • Request the 4N reference analysis report.
  • List impurity or D50 requirements.
  • Include destination and end-use note for manual review.