TY - VIDEO AU - Robert Polvani C2 - A Recommendation for an Inspection Standard to Control Sub-Surface Damage in Single-Crystal Sapphire Components DA - 2000-01-01 LA - en PB - A Recommendation for an Inspection Standard to Control Sub-Surface Damage in Single-Crystal Sapphire Components PY - 2000 TI - A Recommendation for an Inspection Standard to Control Sub-Surface Damage in Single-Crystal Sapphire Components ER -