Vacuum-degassed 4N5 (99.995%) Crushed Single-Crystal Sapphire & Sintered Tablets aluminum oxide (sapphire granules) (Al2O3, CAS 1344-28-1) evaporation pellets, granules, and slugs engineered for spit-free electron-beam and resistive thermal PVD.
Prepared specifically for high-vacuum electron-beam and resistive thermal evaporation, our 4N5 (99.995%) Crushed Single-Crystal Sapphire & Sintered Tablets aluminum oxide (sapphire granules) (Al2O3, CAS 1344-28-1) deposition materials undergo vacuum degassing or high-temperature sintering to eliminate trapped volatiles and micro-voids that cause melt spitting and pinhole film defects.
Crushed monocrystalline sapphire granules contain zero trapped binder pores, melting cleanly in tungsten, molybdenum, or water-cooled Cu e-beam hearths. Supplied in cleanroom argon-flushed containers by weight (50 g to 1,000 g lots) or piece count, accompanied by the manufacturer's batch trace-impurity Certificate of Analysis.
| Property / Metric | Nominal Reference Value (Grade Dependent) |
|---|---|
| Formula & CAS # | Al2O3 (CAS 1344-28-1) |
| Purity Tiers | 4N5 (99.995%) Crushed Single-Crystal Sapphire & Sintered Tablets |
| Density & Melting/Sublimation | 3.95 g/cm³ · MP/Subl. ~2,050 °C |
| Standard Forms | 1–3 mm & 2–5 mm crushed crystal sapphire granules; sintered e-beam tablets |
| Recommended Liner / Boat | Crushed monocrystalline sapphire granules contain zero trapped binder pores, melting cleanly in tungsten, molybdenum, or water-cooled Cu e-beam hearths |
Reference values reflect typical sintered, fused, or wrought grades. Exact batch test figures are confirmed on your written quotation and accompanying lot Certificate of Analysis.
Specify Al2O3 purity (4N5 (99.995%) Crushed Single-Crystal Sapphire & Sintered Tablets), preferred pellet or granule size (1–3 mm & 2–5 mm crushed crystal sapphire granules; sintered e-beam tablets), deposition method (e-beam hearth pocket cc volume vs. resistive W/Mo/Ta boat), and pack weight in grams.
Include target quantity, destination country/postal code for express air freight calculation, and any special cleanroom bagging or certification requests.
Prepare Aluminum Oxide (Sapphire Granules) (Al2O3) Evaporation Materials RFQ ↗Complementary furnaceware, substrates, PVD consumables, and refractory hardware frequently ordered together.
TB-PVD-EVVacuum-degassed 4N–5N metal evaporation slugs/shots and optical dielectric granules (SiO2, Ti3O5, MgF2, Al2O3) engineered for spit-free e-beam and thermal PVD.
TB-PVD-ALOHigh-density hot-pressed aluminum oxide (alumina) (Al2O3, CAS 1344-28-1) ceramic sputtering targets in 4N (99.99%) / 4N5 purity, indium-bonded for arc-free RF and pulsed-DC thin-film deposition.
TB-SAP-SBEpi-ready single-crystal sapphire substrates (C-, R-, A-, M-plane) and Mohs-9 optical sapphire pressure/IR windows from 180 nm UV to 5.0 µm mid-IR.
TB-EV-MGF2Vacuum-degassed 4N5 (99.995%) Vacuum-Grown Crystal Optical Grade magnesium fluoride (MgF2, CAS 7783-40-6) evaporation pellets, granules, and slugs engineered for spit-free electron-beam and resistive thermal PVD.
Submit your purity grade, geometry, quantity, and documentation requirements. Every order includes the producing mill's batch Certificate of Analysis (COA) and pre-shipment dimensional verification.