金属镀层

Nonferrous metals such as aluminum, copper, and titanium are functional, lightweight materials with excellent thermal conductivity and heat resistance, and are used in a variety of applications. Oxygen, hydrogen, and sulfur are intentionally added to these materials to improve their functions. In addition, the concentration of oxygen, hydrogen and carbon as foreign substances is controlled to improve quality.

脉冲射频辉光放电-光学发射光谱技术（GDS）被用于研究不同的电镀样品。光斑尺寸的灵活性、脉冲射频源的使用以及差分干涉测量轮廓技术的引入，使得 GDS 成为电镀行业的一项关键技术。

脉冲射频辉光放电光谱仪（GDOES）是磁控溅射沉积工艺的一种配套分析工具。磁控溅射属于等离子体气相沉积（Plasma Vapour Deposition，PVD）的一种类型。物理气相沉积（PVD）镀膜机的真空腔室内充满氩气等惰性气体。通过施加高压（如射频RF、高功率脉冲磁控溅射HIPIMS等），会产生辉光放电，致使离子加速向靶材表面运动，进而形成等离子体镀膜。氩离子会将溅射材料从靶材表面击出（溅射），从而在靶材前方的产品表面形成一层溅射镀膜层。

将金属及金属氧化物纳米颗粒引入薄膜中，可增强或赋予薄膜特定性能，如耐腐蚀性、光子学效应、抗菌活性等。HORIBA作为一家法国研究项目的合作伙伴，该项目在同一腔室内，将纳米颗粒喷涂到正在生长的物理气相沉积（PVD）层上。在针对这些新型材料的众多研究中，脉冲射频辉光放电光谱仪（Pulsed RF GDOES）被用于研究颗粒的深度剖面分布及复合层的厚度。

Steel coating plays an important role in preventing corrosion of steel samples. Therefore, an understanding of coatings can help in improving the steel properties. XRF is a powerful technique for measuring thickness and composition of coatings. We carried out non-destructive thickness and composition analysis of Zinc-Nickel coating on steel using the MESA-50 X-ray fluorescence analyzer.

The EDXRF technique is used for the elemental analysis not only of solids, but also of liquids such as plating solution thanks to dedicated sample cells. This specific example shows the ability of MESA-50 for electrolytic baths follow-up by characterizing the degradation of Zn-Ni galvanization baths.