Hefei Kejing Erbium (Er) Metal Foil
| Brand | Hefei Kejing |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | Erbium (Er) Foil |
| Standard Dimensions | 10 × 10 × 1.0 mm |
| Packaging | Vacuum-sealed in Class 100 cleanroom bag, stored in Class 1000 cleanroom environment |
| Storage Requirement | Must be maintained under vacuum to prevent oxidation |
| Price | Available upon request |
Overview
Erbium (Er) foil is a high-purity metallic thin sheet fabricated from elemental erbium, a lanthanide rare-earth metal with atomic number 68. This material exhibits characteristic paramagnetic behavior, strong optical absorption in the near-infrared region (particularly around 1530–1560 nm), and favorable neutron absorption cross-section—making it indispensable in specialized applications such as fiber-optic amplifier doping, nuclear control rod components, and research-grade target materials for ion beam irradiation or sputtering deposition. The Hefei Kejing Erbium Foil is produced via high-vacuum electron-beam melting and precision rolling under inert atmosphere, followed by rigorous surface passivation and packaging to preserve stoichiometric integrity and surface morphology. Unlike bulk ingots or powders, this foil format enables controlled mass delivery, uniform layering in thin-film stacks, and compatibility with vacuum-based physical vapor deposition (PVD) systems including thermal evaporation and magnetron sputtering.
Key Features
- High-purity erbium metal (≥99.9% typical, trace analysis available upon request)
- Precisely controlled thickness tolerance (±0.05 mm for 1.0 mm nominal thickness)
- Uniform surface finish suitable for direct use in UHV-compatible deposition chambers
- Vacuum-sealed packaging in certified Class 100 cleanroom bags within a Class 1000 cleanroom environment
- Surface oxide suppression through immediate post-rolling argon purging and vacuum encapsulation
- Traceable lot documentation including melt history, rolling batch ID, and packaging certification
Sample Compatibility & Compliance
The Er foil is compatible with standard vacuum feedthroughs, resistive evaporation boats (e.g., W, Mo, Ta), and sputtering targets holders designed for rectangular planar substrates. Its dimensional stability under moderate thermal cycling (up to 150 °C in inert ambient) ensures minimal warping during pre-deposition bake-out. While not classified as a regulated hazardous substance under UN GHS or CLP, erbium metal is recognized as pyrophoric in finely divided form; therefore, this foil format mitigates handling risk when used per ASTM D6184-22 (Standard Practice for Handling Rare-Earth Metals). All packaging and labeling comply with ISO 14644-1 cleanroom classification requirements and adhere to internal quality protocols aligned with ISO 9001:2015. Material safety data is provided per SDS Section 3 (Composition/Information on Ingredients) and includes guidance on inert-gas glovebox transfer procedures.
Software & Data Management
As a passive instrumentation component rather than an active measuring device, the Er foil does not incorporate embedded firmware or require software integration. However, Hefei Kejing provides digital lot traceability through a secure web portal accessible to registered institutional buyers. Each shipment includes a QR-coded certificate of conformance (CoC) linking to metadata such as production date, vacuum seal integrity test record, residual gas analysis report (O₂/H₂O partial pressure < 1×10⁻⁶ Torr), and optional ICP-MS impurity profile. For laboratories operating under GLP or GMP frameworks, audit-ready documentation—including raw material sourcing records and cleanroom environmental logs—is available upon formal request and subject to NDA execution.
Applications
- Doping source for erbium-doped fiber amplifiers (EDFAs) in telecommunications-grade optical systems
- Target material for reactive sputtering of Er₂O₃ dielectric layers in gate-stack engineering
- Calibration standard in X-ray fluorescence (XRF) and energy-dispersive spectroscopy (EDS) quantification workflows
- Neutron-absorbing component in experimental reactor shielding prototypes
- Substrate for epitaxial growth of Er-based intermetallic compounds (e.g., ErFe₂, ErNi₂) under ultra-high vacuum MBE conditions
- Reference material in thermogravimetric analysis (TGA) studies of rare-earth oxidation kinetics
FAQ
Is this erbium foil suitable for electron-beam evaporation?
Yes—its density, melting point (~1529 °C), and low vapor pressure below 1200 °C make it compatible with standard e-beam crucibles. Pre-melting under high vacuum is recommended to remove adsorbed moisture prior to deposition.
Can I request custom thicknesses or annealing treatments?
Custom thicknesses (0.05–5.0 mm) and recrystallization anneals (under Ar/H₂ at 800–1100 °C) are available under OEM agreement; lead time extends by 4–6 weeks.
What is the shelf life under proper vacuum storage?
When maintained continuously below 1×10⁻³ mbar, the foil retains usable surface quality for ≥24 months. Visual inspection for discoloration (gray-to-black tarnish) is advised prior to use.
Do you provide certificates of analysis (CoA) with each order?
A CoC is included with every shipment. Full CoA with ICP-OES/MS impurity data and XRD phase verification is available as a value-added service at additional cost.
Is this product compliant with RoHS or REACH regulations?
Elemental erbium is exempt from RoHS restriction (Annex III, Entry 17) and is not listed in REACH SVHC Candidate List. Full regulatory statement included in SDS.
