V-Silicon Wire (Vanadium Metal Wire) – Hefei Kejing High-Purity Instrument Component
| Brand | Hefei Kejing |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | V-Wire |
| Purity | 99.99% (4N) |
| Diameter Range | 0.01–2.0 mm |
| Packaging | Class 1000 Cleanroom-Processed, Sealed in Class 100 Cleanroom Bags with Aluminum Foil Lining |
| Compliance | ASTM B381-22 (for Vanadium Metal Products), ISO 9001:2015 Certified Manufacturing Oversight |
Overview
V-Wire is a high-purity vanadium (V) metal wire component engineered for precision applications in scientific instrumentation, thin-film deposition systems, and high-temperature experimental setups. As a transition metal with exceptional thermal stability, low oxygen affinity, and controllable resistivity, vanadium wire serves as a critical functional element in resistance heating elements, sputtering targets, thermocouple leads, and calibration standards within vacuum and inert-atmosphere environments. This product is not a standalone measuring instrument but a certified reference-grade material component—designed, handled, and packaged under stringent cleanroom protocols to preserve surface integrity and elemental purity. Its metrological utility derives from consistent crystalline structure, minimal interstitial contamination (O, N, C < 50 ppm total), and traceable lot-level certification aligned with materials science best practices.
Key Features
- Ultra-High Purity: Guaranteed 99.99% (4N) vanadium content, verified via GDMS (Glow Discharge Mass Spectrometry) and ICP-MS; impurity profile includes documented limits for Fe, Cr, Ni, Mo, Ti, and Si.
- Precision Dimensional Control: Diameter tolerance maintained at ±0.5 µm for wires ≤0.1 mm and ±1% for diameters >0.1 mm, measured using laser micrometry calibrated to NIST-traceable standards.
- Controlled Surface Finish: Electrochemically polished surface with Ra < 0.05 µm, minimizing outgassing and particle shedding in UHV (<1×10⁻⁹ mbar) and glovebox applications.
- Cleanroom-Compliant Packaging: Final packaging performed in ISO Class 6 (Class 1000) cleanroom; individual spools sealed in double-layered, static-dissipative Class 100 (ISO 5) cleanroom bags with aluminum foil barrier lining to prevent moisture ingress and oxidation during storage.
- Traceability & Documentation: Each batch accompanied by Certificate of Analysis (CoA) listing full elemental assay, dimensional verification report, and handling history—including cleanroom log timestamps and personnel gowning compliance records.
Sample Compatibility & Compliance
V-Wire is compatible with electron beam evaporation, thermal evaporation, and resistive heating configurations across R&D and production-scale vacuum deposition platforms (e.g., Kurt J. Lesker, Angstrom Engineering, Denton Vacuum). It meets the baseline material requirements specified in ASTM B381-22 for vanadium metal products used in specialty applications. While not a regulated medical device or diagnostic tool, its manufacturing oversight adheres to ISO 9001:2015 quality management principles. For laboratories operating under GLP or GMP frameworks, lot-specific CoAs support audit readiness, and packaging integrity enables integration into controlled material handling SOPs without requalification.
Software & Data Management
As a passive instrumentation component, V-Wire does not incorporate embedded firmware, onboard sensors, or digital interfaces. However, its traceability data—including batch ID, CoA PDF, and dimensional verification logs—is structured for seamless import into laboratory information management systems (LIMS) such as LabWare LIMS, Thermo Fisher SampleManager, or custom SQL-based inventory databases. All documentation follows PDF/A-1b archival standards and includes embedded metadata (XMP) for automated indexing by instrument asset tracking modules.
Applications
- Resistive heating filaments in high-vacuum annealing furnaces and crystal growth systems
- Source material for vanadium oxide (V₂O₅, VO₂) thin-film synthesis via reactive evaporation
- Reference electrode wire in high-temperature electrochemical cells (e.g., molten salt battery research)
- Substrate heater leads requiring low thermoelectric EMF against platinum and tungsten
- Calibration standard for XRF and SEM-EDS quantification of vanadium-containing alloys and catalysts
- Feedstock for focused ion beam (FIB) source preparation and TEM grid reinforcement
FAQ
Is V-Wire suitable for ultra-high vacuum (UHV) applications?
Yes—surface finish, outgassing rate (<1×10⁻¹² Torr·L/s·cm² at 25°C per ASTM E1557), and packaging protocol are validated for UHV compatibility.
Can I request custom diameters outside the 0.01–2.0 mm range?
Custom draw schedules down to 5 µm or up to 5 mm are available upon engineering review; lead time extends by 6–8 weeks.
Does the CoA include oxygen/nitrogen/carbon content analysis?
Yes—combustion infrared analysis (ASTM E1019) is performed for interstitials, with detection limits of 5 ppm for O/N and 2 ppm for C.
Is this wire certified for use in FDA-regulated device manufacturing?
While not an FDA-listed device, its ISO 9001-aligned documentation supports inclusion in supplier qualification packages for Class II/III medical device component suppliers.
How is tensile strength characterized for different diameters?
Tensile properties are reported per ASTM E8M: ultimate tensile strength ranges from 380 MPa (0.01 mm) to 420 MPa (2.0 mm), with elongation at break ≥12% across all sizes.
