Work

Full Optimization of an Electroless Nickel Solution: Boosting the Performance of Low-Phosphorous Coatings

Year: 2021

Type: article

Abstract: Univariate and multivariate optimizations of a novel electroless nickel formulation have been carried out by means of the Taguchi method. From the compositional point of view, adjustment of the complexing agent concentration in solution is crucial for fine-tuning free Ni2+ ions concentration and, in turn, the mechanical properties of the resulting coatings. The Ni (II) concentration and the pH are the main parameters which help restrict the incorporation of phosphorous into the Ni layers. On the other hand, the stirring rate, the pH and the reducing agent concentration are the most influential parameters for the corrosion resistance of the coatings. Multivariate optimization of the electrolyte leads to a set of optimized parameters in which the mechanical properties (hardness and worn volume) of the layers are similar to the optimal values achieved in the univariate optimization, but the corrosion rate is decreased by one order of magnitude.

Source: Materials

DOI: 10.3390/ma14061501

Authors: Asier Salicio-Paz, Ixone Ugarte, Jordi Sort, Eva Pellicer, Eva García-Lecina

Institutions: Centre for Electrochemical Technologies, Institució Catalana de Recerca i Estudis Avançats, Universitat Autònoma de Barcelona

Language: English

Topic: Electrodeposition and Electroless Coatings

Subfield: Surfaces, Coatings and Films

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,160

Funders: Generalitat de Catalunya, Ministerio de Ciencia e Innovación, Ekonomiaren Garapen eta Lehiakortasun Saila, Eusko Jaurlaritza