Specifications Table

Product Name – Aluminum rod, 6mm (0.2in) dia, Puratronic™, 99.9965% (metals basis) Quantity/Pack Size – 15cm, *5x15cm Form – Rod Grade – Puratronic™ (99.9965% metals basis) Application – Semiconductor, thin-film deposition, calibration standards, high-purity alloying

Product Overview

This Puratronic™ aluminum rod delivers exceptional purity at 99.9965% (metals basis), engineered for applications where trace impurities can compromise results. The 6mm (0.2in) diameter rod is produced under stringent controls to eliminate interstitial and substitutional contaminants, ensuring consistency in critical processes like physical vapor deposition (PVD), sputtering targets, or as a reference material in atomic absorption spectroscopy (AAS). Unlike commercial-grade aluminum, this material undergoes multiple refining stages—including zone refining and vacuum melting—to achieve its ultra-low impurity profile, with residual elements typically below 10 ppm. The rod’s uniform microstructure and absence of oxide inclusions make it particularly suitable for electron microscopy sample preparation or as a substrate in surface science studies. Available in 15cm lengths (single or 5-pack), the rod’s machined surface finish reduces the need for additional polishing, while its high thermal conductivity (237 W/m·K) and electrical resistivity (2.65 µΩ·cm at 20°C) meet the demands of thermal management and electrical testing applications. The Puratronic™ certification guarantees lot-to-lot reproducibility, backed by comprehensive traceability documentation for ISO-compliant laboratories.

FAQs

1. What is the difference between Puratronic™ and standard aluminum grades?

Puratronic™ aluminum undergoes advanced refining to achieve 99.9965% purity, with strict limits on metallic (e.g., Fe, Si, Cu < 5 ppm) and gaseous (O, N, H) impurities. Standard grades like 1100 or 6061 contain higher levels of alloys (e.g., Mg, Mn) and impurities, making them unsuitable for high-sensitivity applications.

2. Can this rod be used for sputtering targets without further processing?

The rod’s surface is machined to a smooth finish (Ra < 0.8 µm), but for sputtering, we recommend ultrasonic cleaning in acetone/methanol to remove residual organic contaminants from handling. No additional machining is typically required unless custom dimensions are needed.

3. How does the 6mm diameter compare to other sizes for thermal conductivity testing?

The 6mm diameter balances thermal mass and response time for transient measurements. Larger diameters (e.g., 10mm) offer higher heat capacity but slower equilibration, while smaller rods (e.g., 3mm) may introduce edge effects in radial heat flow experiments.

4. What documentation is provided for traceability?

Each rod includes a certificate of analysis (CoA) with ICP-OES/MS data for 30+ elements, residual resistivity ratio (RRR), and production lot details. Additional documentation like NIST-traceable calibration reports is available upon request for ISO 17025 compliance.

5. Are there alternatives for applications requiring higher mechanical strength?

For load-bearing applications, consider aluminum-magnesium alloys (e.g., 5052) or heat-treated 6061, though these sacrifice purity. For high-strength *and* high-purity needs, aluminum-lithium alloys (e.g., 2090) may be evaluated, but they introduce Li as a controlled impurity.