6533b85ffe1ef96bd12c2498
RESEARCH PRODUCT
UV-Laser Plasma Study of Elemental Distributions of Paper Coatings
Jouko Korppi-tommolaHeikki Häkkänensubject
Materials scienceSilicon010401 analytical chemistryAtomic emission spectroscopyAnalytical chemistrychemistry.chemical_elementPlasmaengineering.materialLaser01 natural sciences0104 chemical sciencesCharacterization (materials science)law.invention010309 opticsVolume (thermodynamics)chemistryCoatinglaw0103 physical sciencesengineeringInstrumentationSpectroscopyLine (formation)description
The potential of a laser-generated plasma method in the analysis of coating coverage, coatweight distribution, and 3D distribution of various pigments of paper coating is described. A XeCl-excimer laser (308 nm) was used to generate microscopic plasma from the paper coating, and delayed detection of silicon and calcium atomic emission line intensities was used as a measure of mass vaporized. Macroscopic areas typically 10 × 10 mm2 at a spatial resolution of 250 μm were studied. With a single laser pulse (0.2 mJ of energy), about 2 ng of coating from a volume of 30 μm in diameter and 2 μm in depth was vaporized. The method seems to be useful for characterization of multilayer coatings.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-12-01 | Applied Spectroscopy |