Chemical Composition Analysis of Mineral Fibres
topic
Mineral fibre bulk chemical composition is determined by X-ray fluorescence spectrometry of fused bead preparations for major oxide components, with ICP-OES providing trace element quantification after acid dissolution; fibre surface chemistry is characterised by X-ray photoelectron spectroscopy measuring element concentration and chemical state in the top 5 to 10 nanometres of fibre surface relevant to matrix adhesion and corrosion behaviour.
Role
Provides the compositional quality control data that verifies mineral fibre identity, batch-to-batch consistency, and compliance with product specifications, enabling correlation of composition variations with mechanical property differences and supporting regulatory classification of ceramic fibres by chemical composition criteria used in EU carcinogen labelling exemption criteria.