Tailoring barrier layers design for haute couture through X-ray microanalysis: Insights and guidelines
Fabio Biffoli,
Walter Giurlani,
Mariya Vorobyova,
Irene Maccioni,
Claudia Giovani,
Manuel Salvi,
Elisabetta Cianfanelli,
Marco Pagliai,
Massimo Innocenti
Affiliations
Fabio Biffoli
Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy; Materia Firenze Lab s.r.l., Gruppo Materia Firenze, Via delle Fonti 8/E, 50018, Scandicci (FI), Italy
Walter Giurlani
Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G, Giusti 9, 50121, Firenze (FI), Italy; Corresponding author. Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy.
Mariya Vorobyova
Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G, Giusti 9, 50121, Firenze (FI), Italy
Irene Maccioni
Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy
Claudia Giovani
Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy
Manuel Salvi
Materia Firenze Lab s.r.l., Gruppo Materia Firenze, Via delle Fonti 8/E, 50018, Scandicci (FI), Italy
Elisabetta Cianfanelli
Department of Architecture “DIDA”, University of Florence, Piazza Lorenzo Ghiberti 27, 50122, Firenze (FI), Italy
Marco Pagliai
Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy
Massimo Innocenti
Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G, Giusti 9, 50121, Firenze (FI), Italy; National Research Council-Organometallic Compounds Chemistry Institute (CNR-ICCOM), Via Madonna del Piano 10, 50019 Sesto F.no (FI), Italy; Center for Colloid and Surface Science (CSGI), Via della Lastruccia 3, 50019 Sesto F.no (FI), Italy; Corresponding author. Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy.
Barrier layers against intermetallic diffusion are a fundamental part on engineering electroplated coatings as they improve the lifetime of goods reducing wastes and improving the sustainability of the production chain. This study aims to set a cost-effective methodology to characterize barrier systems by evaluating the effectiveness with a recent approach based on XRF and EDS and characterize the kinetic of diffusion processes with X-ray diffractometry. Several high fashion barrier systems were tested highlighting that anticorrosion systems are not automatically suited as barrier layers for intermetallic diffusion, as opposed to industrial practice. Investigations on gold coatings obtained varying the current density revealed a correlation between the activation energy of the diffusion process, roughness, and crystallite size.
