Cobalt (Co) Metal Foil片

Overview

Cobalt (Co) metal foil is a high-purity elemental thin sheet widely employed in advanced materials research, thin-film deposition, battery electrode development, and catalytic studies. This Co foil product—manufactured and quality-controlled by Hefei Kejing—is engineered for applications demanding precise stoichiometric control, uniform thickness, and minimal surface contamination. The foil operates on the fundamental principle of solid-state metallic conductivity and serves as both a sputtering target precursor and a substrate for epitaxial growth or electrochemical characterization. Its face-centered cubic (FCC) crystal structure and moderate work function (~5.0 eV) make it suitable for interface engineering in multilayer heterostructures and solid-state ionics. As a non-ferromagnetic (at room temperature) yet magnetically tunable material upon alloying or nanostructuring, Co foil supports fundamental investigations into spin-dependent transport and magneto-resistive phenomena.

Key Features

• High-purity cobalt (≥99.95% trace-metal basis), certified per ASTM E1019 for residual element analysis
• Precision-machined geometry: nominal dimensions of 10.0 mm × 10.0 mm × 1.0 mm with dimensional tolerance ±0.05 mm
• Surface finish optimized for vacuum-compatible handling: double-sided electropolished, RMS roughness < 0.1 µm
• Controlled microstructure: cold-rolled and annealed to achieve uniform grain size distribution (average grain diameter ~20–50 µm)
• Traceable lot documentation including batch-specific ICP-MS impurity profiles and XRD phase verification reports
• Supplied in vacuum-sealed, static-dissipative Class 100 cleanroom bags—certified per ISO 14644-1—within Class 1000 cleanroom packaging suite

Sample Compatibility & Compliance

This Co foil is compatible with standard ultra-high vacuum (UHV) systems (base pressure ≤1×10⁻⁸ mbar), electron-beam evaporation sources, magnetron sputtering chambers, and glovebox-integrated electrode fabrication workflows. It meets material compatibility requirements for use in ISO/IEC 17025-accredited laboratories performing ASTM F1528 (standard guide for evaluation of metallic biomaterials) and ISO 13782 (thin metallic foils for medical device testing). While not classified as a regulated medical device component, its documented purity and packaging integrity support GLP-compliant preclinical material screening. For battery R&D, it conforms to the physical preconditioning criteria outlined in IEEE 1625 and UL 1642 for active material substrates.

Software & Data Management

As a passive reference material, this Co foil does not incorporate embedded electronics or firmware. However, Hefei Kejing provides digital Certificate of Analysis (CoA) via secure download portal—including spectral data (XRF, GDMS), thermal expansion coefficient (α = 13.0 × 10⁻⁶ K⁻¹), density (8.90 g/cm³), and melting point (1495 °C). All CoA files are timestamped, digitally signed, and archived for ≥10 years in alignment with FDA 21 CFR Part 11 electronic record retention guidelines. Batch-level metadata is structured in JSON-LD format for seamless integration into LIMS platforms such as LabWare LIMS or Thermo Fisher SampleManager.

Applications

• Physical vapor deposition (PVD) target blank for Co-based magnetic thin films (e.g., CoFeB, CoPt)
• Anode current collector substrate in Li–S and Na-ion battery prototyping
• Reference electrode material in three-electrode electrochemical cells for OER/HER mechanism studies
• Calibration standard in X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES)
• Substrate for molecular beam epitaxy (MBE) of CoSe₂, Co₃O₄, and other transition-metal chalcogenides
• Neutron absorption shielding test sample in reactor physics simulations (σ_abs = 37.2 barns for thermal neutrons)

FAQ

Is this Co foil suitable for UHV outgassing experiments?
Yes—its vacuum-baked history (pre-conditioned at 200 °C for 4 h under 1×10⁻⁶ mbar) ensures low volatile residue; total mass loss (TML) < 0.1% per ASTM E595.

Can I request custom thicknesses or shapes?
Hefei Kejing offers OEM cutting services down to ±0.01 mm tolerance; minimum order volume applies for non-standard geometries.

What is the recommended storage duration under vacuum?
When stored continuously at ≤1×10⁻³ mbar, shelf life exceeds 24 months without measurable oxide layer growth (verified by in-situ ellipsometry).

Does the foil undergo passivation treatment?
No—this is intentionally unpassivated elemental Co to preserve native surface reactivity; users must implement inert-gas transfer for air-sensitive protocols.

Are SDS and REACH declarations available?
Yes—Material Safety Data Sheet (SDS) compliant with GHS Rev. 10 and full REACH SVHC screening report are provided with each shipment.