Full optimization of an electroless nickel solution : boosting the performance of low-phosphorous coatings
Salicio-Paz, Asier (Centre for Electrochemical Technologies)
Ugarte, Ixone (Centre for Electrochemical Technologies)
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Pellicer Vilà, Eva Maria (Universitat Autònoma de Barcelona. Departament de Física)
García-Lecina, Eva (Centre for Electrochemical Technologies)

Date:	2021
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.
Grants:	Agencia Estatal de Investigación MAT2017-86357-C3-1-R Agencia Estatal de Investigación MAT2017-86357-C3-2-R Ministerio de Ciencia e Innovación EXP-00137314/CER-20191003 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-192
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Electroless nickel ; Taguchi ; Optimization ; Hardness ; Wear ; Corrosion
Published in:	Materials, Vol. 14, Núm. 6 (March 2021) , art. 1501, ISSN 1996-1944

DOI: 10.3390/ma14061501
PMID: 33803873

18 p, 4.4 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Group of Smart Nanoengineered Materials, Nanomechanics and Nanomagnetism (Gnm3)
Articles > Research articles
Articles > Published articles