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Coating analysis options using WDXRF

AppNote XRF-MZZR03: coating analysis options using WDXRF

Background

Coating is an important and common technology used in various industrial fields. X-ray fluorescence (XRF) enables easy and high-precision analysis for coating thickness without destruction or consumption of sample. XRF also requires little or no simple sample preparation to analyze coating thickness. Designed to enhance corrosion protection or to create a special surface appearance, conversion coatings are critical to the aluminum beverage can industry. Trending towards environmental safety, chromium-free conversion coatings—such as Zr—are becoming more commonplace. WDXRF has been found to be an ideal analysis tool for determining coating thicknesses in applications such as this. A Rigaku Mini-Z Zr analyzer was used to demonstrate the ability of XRF in this application. Seven Zr-coated coupons were used as reference materials to create a calibration line. The coating weights ranged from 0.0 mg/m² to 13.0 mg/m².

WDXRF products from Rigaku

Benchtop tube below sequential WDXRF spectrometer analyzes O through U in solids, liquids and powders

High power, tube above, sequential WDXRF spectrometer with new ZSX Guidance expert system software

High power, tube below, sequential WDXRF spectrometer with Smart Sample Loading System (SSLS)

High power, tube above, sequential WDXRF spectrometer

WDXRF spectrometer designed to handle very large and/or heavy samples

High-throughput tube-above multi-channel simultaneous WDXRF spectrometer analyzes Be through U

WDXRF ultra low sulfur analyzer for method ASTM D2622

ASTM D2622 method WDXRF analyzer for sulfur (S) in petroleum fuels and ULSD

Tube below, single element WDXRF analyzer for quality control applications