João Carlos Salvador Fernandes

Assistant Professor


Chemical Engineering Department
Instituto Superior Técnico
University of Lisbon
Av.Rovisco Pais
P - 1049-001 Lisboa
Portugal
phone: (+351) 21 841 79 64
fax: (+351) 21 841 97 71
email: joao.salvador@tecnico.ulisboa.pt

Graduation in Chemical Engineering, Instituto Superior Técnico (1987). PhD (Chemical Engineering), Instituto Superior Técnico, Technical University of Lisbon (M.G.S.Ferreira, 1997)


The scientific interests of João Salvador Fernandes are in the domain of interfaces and surfaces engineering, with special relevance for the study and development of advanced materials showing high corrosion resistance. The work involves aluminium alloys used in aeronautics and is of special relevance for national and european industry. Within this framework, surface modification by ion implantation, coatings and anodising processes to replace chromium-based formulations has been carried out.

The above studies use electrochemical techniques (e.g. E.I.S.), surface analysis techniques (e.g. Auger Electron Spectroscopy and XPS) and modelling of the corrosion processes.

The development of material for biomedical use, such as impant materials, is also one of his current research areas. Special attention is given to the use of memory shape alloys as NiTi, with the aim of avoiding the release of nickel ions to the physiological media, and to the development of protective coatings for resorbable magnesium alloy implants.

The study of the chemical and electrochemical processes of metalic corrosion involves the use of several surface analysis techniques, such as scanning electron microscopy, Auger electron spectroscopy or X-ray photoelectron spectroscopy, together with electrochemical techniques such as electrochemical impedance spectroscopy, which study, development and application to the modelling of corrosion processes is one of the main scientific interests of Joao Fernandes, or the novel localised electrochemical techniques (scanning Kelvin probe, scanning vibrating electrode technique, localised electrochemical impedance spectroscopy or scanning electrochemical microscopy), all of them available at the group's laboratory.

His recent activity is also foccused in the development of electrochemical sensors, from the corrosion sensors (in particular for early detection of aircraft corrosion, with one patented product) to biomedical sensors.


Selected Publications

  • J.C.S. Fernandes, M.A. Travassos, E. Leitão, C.M. Rangel, M. Barbosa, M.G.S. Ferreira, "The Influence of Li on the Electrochemical Behaviour of Pure Aluminium", Portugaliæ Electrochimica Acta, 7 (1989) 119-122 ( Paper in PDF format)
  • J.C.S. Fernandes, M.G.S. Ferreira, C.M. Rangel, "Electrochemical Impedance Studies on Pure Aluminium in Carbonate Solutions", Journal of Applied Electrochemistry, 20 (1990) 874-876 ( Paper in PDF format)
  • J.C.S. Fernandes, M.G.S. Ferreira, "Corrosion Behaviour of Physical Vapour Deposition Aluminium-Based Coatings on 2024 Aluminium Alloy", Surface and Coatings Technology, 52 (1992) 289-290 (Paper in PDF format)
  • J.C.S. Fernandes, M.G.S. Ferreira, "Corrosion Behaviour of Physically Vapour Deposited Al-Zn Coatings on 7075 Aluminium Alloy", Surface and Coatings Technology, 53 (1992) 99-100 (Paper in PDF format)
  • J.C.S. Fernandes, M.G.S. Ferreira, "Effect of Carbonate and Lithium Ions in the Corrosion Behaviour of Pure Aluminium", Electrochimica Acta, 37(14) (1992) 2659-2661 ( Paper in PDF format)
  • J.C.S. Fernandes, M.G.S. Ferreira, "Corrosion Behaviour of Tungsten­Implanted Aluminium in Carbonate and Sulphate Solutions", Surface and Coatings Technology, 56 (1992) 75-79 (Paper in PDF format)
  • F. Mansfeld, J.C.S. Fernandes, "Impedance Spectra for Aluminum 7075 During the Early Stages of Immersion in Sodium Chloride", Portugaliæ Electrochimica Acta, 11 (1993) 245-248 (Paper in PDF format)
  • F. Mansfeld, J.C.S. Fernandes, "Impedance Spectra for Aluminum 7075 During the Early Stages of Immersion in Sodium Chloride", Corros. Sci., 34 (1993), 2105-2108 (Paper in PDF format)
  • M.G.S. Ferreira, R. Li, J.C.S. Fernandes, A. Almeida, R. Vilar, K.G. Watkins, W.M. Steen, "Pitting Corrosion of Laser Surface Modified Aluminium Alloys", Materials Science Forum, 192-194 (1995) 421-432 ( Paper in PDF format)
  • J.C.S. Fernandes, M.G.S.Ferreira, "Corrosão Atmosférica do Alumínio", in "Corrosão Atmosférica - Mapas de Portugal", Editores M. Elisabete M. Almeida e Mário G. S. Ferreira, INETI, Lisboa (1998)
  • A. Veloso, P.P. Freitas, N. Oliveira, J. Fernandes, M. Ferreira, "Spin Valve Heads with a Corrosion Resistant MnRh Exchange Layer", IEEE Trans. Magn., 34 (4) (1998), 2343-2347 (Paper in PDF format)
  • A. Veloso, P.P. Freitas, J. Fernandes, M. Ferreira, “Spin valve sensors with Mn1-xRhx exchange films”, Mat. Res. Soc. Symp. Proc., 517 (1998), 31 (Artigo em formato PDF)
  • J.C.S. Fernandes, M.G.S. Ferreira, J.C. Soares, C.M. Jesus, C.M. Rangel, P. Skeldon, G.E. Thompson, X. Zhou, H. Habazaki, K. Shimizu, "The Behaviour of Ion-Implanted Tungsten Species During Anodic Oxidation of Aluminium", J. Phys. D: Appl. Phys., 31 (1998), 2083-2090 ( Paper in PDF format)
  • J.C.S. Fernandes, M.G.S. Ferreira, "On the Pitting Resistance of Tungsten Implanted Aluminium", Materials Science Forum, 289-292 (1998) 1151.
  • J.C.S. Fernandes, M.G.S. Ferreira, "Efeito do Tungsténio Implantado na Resistência à Corrosão por Picadas do Alumínio ", Corros. Prot. Mater., 17 (2) (1998) 6.
  • S. Fernandes, M.G.S. Ferreira, J.C.S. Fernandes, I.T.E. Fonseca, "Corrosão da Liga Al 2024-T3 em Meio Aquoso de Cloretos: Influência do Pré-Tratamento", Corros. Prot. Mater., 18 (2) (1999) 6.
  • L. Domingues, J.C.S. Fernandes, M.G.S. Ferreira, I.T.E. Fonseca, "Anodização da Liga de Alumínio Al 2024-T3 num Banho de Ácido Sulfúrico/ Ácido Bórico Modificado", Corros. Prot. Mater., 18 (2) (1999) 13
  • J.C.S. Fernandes, M.G.S. Ferreira, D.B. Haddow, A. Goruppa, R. Short, “Protective Properties of Plasma-Polymerised Coatings Used As Pre-Treatment For Aluminium Alloys“, Benelux Métallurgie, XXXX (3-4) (2000) / XXXXI (1-2) (2001), pp.192-197
  • J.C.S. Fernandes, M.G.S. Ferreira, D.B. Haddow, A. Goruppa, R. Short, D.G. Dixon, “Plasma-Polymerised Coatings Used As Pre-Treatment For Aluminium Alloys“, Surface and Coatings Technology, 154(1) (2002), pp.8-13 ( Paper in PDF format)
  • L. Domingues, C. Oliveira, J.C.S. Fernandes, M.G.S. Ferreira, “EIS on Plasma-Polymerised Coatings Used as Pre-Treatment for Aluminium Alloys”, Electrochim. Acta, 47 (13-14) (2002), pp.2253-2258 ( Paper in PDF format)
  • I.T.E. Fonseca, N. Lima, J.A. Rodrigues, M.I.S. Pereira, J.C. Salvador Fernandes, M.G.S. Ferreira, “Passivity Breakdown of Al 2024-T3 Alloy in Chloride Solutions: a Test of the Point Defect Model”, Electrochem. Commun., 4 (2002), pp.353-357 (Paper in PDF format)
  • L. Domingues, C. Oliveira, J.C.S. Fernandes, M.G.S. Ferreira, I.T.E. Fonseca, "Corrosion Behaviour of Environmentally Friendly Treatments for Aluminium Alloys",Key Eng. Mater., 230-232 (2002), pp. 392-395 (Paper in PDF format)
  • L. Domingues, J.C.S. Fernandes, M.G.S. Ferreira,  "Anodização Não-Poluente de Ligas de Alumínio", Corros. Prot. Mater., 22 (3) (2003) 13-18 (Paper in PDF format)
  • L. Domingues, J.C.S. Fernandes, M. Da Cunha Belo, M.G.S. Ferreira, L. Guerra-Rosa, "Anodising of Al 2024-T3 in a Modified Sulphuric Acid / Boric Acid Bath for Aeronautical Applications";, Corros Sci., 45 (2003), pp. 149-160 (Paper in PDF format)
  • J.C.S. Fernandes, R. Picciochi, M. Da Cunha Belo, T. Moura e Silva, M.G.S. Ferreira, I.T.E. Fonseca, "Capacitance and photoelectrochemical studies for the assessment of anodic oxide films on aluminium", Electrochim. Acta 49 (2004) 4701-4707 (Paper in PDF format)
  • Silva T., Moura e Silva T., Carmezim M.J., Fernandes J.C.S., "Nitinol - A new material for biomedical applications", Ciência & Tecnologia dos Materiais, 17 (1-2) (2005) 34-37 (Paper in PDF format)
  • M.F. Montemor, J.H. Alves, A.M. Simões, J.C.S. Fernandes, Z. Lourenço, A.J.S. Costa, A.J. Appleton, M.G.S. Ferreira, "Multiprobe Chloride Sensor for In-Situ Monitoring of Reinforced Concrete Structures", Cement and Concrete Composites, 28 (3) (2006) 233-236 (Paper in PDF format)
  • M.F. Montemor, J.H. Alves, A.M. Simões, J.C.S. Fernandes, Z. Lourenço, A.J.S. Costa, A.J. Appleton, M.G.S. Ferreira, “Sensor de Cloretos para Monitorização In-Situ de Estruturas de Betão Armado”, Corros. Prot. Mater., 26 (3) (2007), 74-78 (Paper in PDF format)
  • N.C.T. Martins, T. Moura e Silva, M.F. Montemor, J.C.S. Fernandes, M.G.S. Ferreira, "Electrodeposition and characterization of polypyrrole films on aluminium alloy 6061-T6", Electrochim. Acta, 53 (14) (2008) 4754-4763, http://dx.doi.org/10.1016/j.electacta.2008.01.059
  • M. Vilarigues, J.C.S. Fernandes, L.C. Alves, R.C. da Silva, "Electrochemical behaviour of chromium-implanted magnesium in hydroxide, chloride and sulphate solutions", Surface & Coatings Technology, 202 (17) (2008) 4086-4093, http://dx.doi.org/10.1016/j.surfcoat.2008.02.018
  • N. Figueira, T.M. Silva, M.J. Carmezim, J.C.S. Fernandes, "Corrosion Behaviour of NiTi Alloy", Electrochimica Acta, 54 (3) (2009) 921-926, http://dx.doi.org/10.1016/j.electacta.2008.08.001
  • A. M. Simões, J. Torres, R. Picciochi, J. C. S. Fernandes, "Corrosion inhibition at galvanized steel cut edges by phosphate pigments", Electrochimica Acta, 54 (15) (2009) 3857–3865, http://dx.doi.org/10.1016/j.electacta.2009.01.065
  • P.G. Venâncio, R.A. Cottis, R. Narayanaswamy, J.C.S. Fernandes, “Sensores de Corrosão para Aeronaves”, Corros. Prot. Mater., 28 (3) (2009), 78-86 (Paper in PDF format)
  • N.C.T. Martins, T. Moura e Silva, M.F. Montemor, J.C.S. Fernandes, M.G.S. Ferreira, "Polyaniline coatings on aluminium alloy 6061-T6: electrosynthesis and characterization", Electrochimica Acta, 55 (10) (2010) 3580–3588 , http://dx.doi.org/10.1016/j.electacta.2009.12.007
  • A.M. Simões, J.C.S. Fernandes, “Studying phosphate corrosion inhibition at the cut edge of coil coated galvanized steel using the SVET and EIS”, Prog. Org. Coat. 69 (2) (2010) 219-224, http://dx.doi.org/10.1016/j.porgcoat.2010.04.022
  • S.C. Ferreira, L.A. Rocha, E. Ariza, P.D. Sequeira, Y. Watanabe, J.C.S. Fernandes, “Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction”, Corros. Sci., 53(6) (2011), 2058-2065, http://dx.doi.org/10.1016/j.corsci.2011.02.010
  • J.R.C. Salgado, J.C.S. Fernandes, A.M. Botelho do Rego, A.M. Ferraria, R.G. Duarte, M.G.S. Ferreira, “Pt-Ru nanoparticles supported on functionalized carbon as electrocatalysts for the methanol oxidation”, Electrochim. Acta, 56(24) (2011) 8509-8518, http://dx.doi.org/10.1016/j.electacta.2011.07.039
  • A.R. Resende, C. Teles, J.C.M. Bordado e J.C.S. Fernandes, “Sistemas de Protecção Exterior para Embalagens Metálicas na indústria Conserveira”, Corros. Prot. Mater., 30 (4) (2011), 114 123 (Paper in PDF format)
  • Queiros, RB; Noronha, JP; Marques, PVS; Fernandes, JCS; Sales, MGF, "Determination of Microcystin-LR in waters in the subnanomolar range by sol–gel imprinted polymers on solid contact electrodes", Analyst, 137(10) (2012), 2437-2444, http://dx.doi.org/10.1039/C2AN35141B
  • Zomorodian, A; Brusciotti, F; Fernandes, A; Carmezim, MJ; Silva, TM; Fernandes, JCS; Montemor, MF; "Anti-corrosion performance of a new silane coating for corrosion protection of AZ31 magnesium alloy in Hank’s solution", Surf. Coat. Tech., 206 (21) (2012) 4368–4375, http://dx.doi.org/10.1016/j.surfcoat.2012.04.061
  • Moreto, JA; Gamboni, OC; Marino, CEB; Bose Filho, WW; Fernandes, JCS; Rocha, LA; "Corrosion Behavior of Al and Al-Li Alloys Used as Aircraft Materials", Corros. Prot. Mater., 31 (3/4) (2012), 60-64 (Paper in PDF format)
  • Solá, C; Amorim, A; Espías, A; Capelo, S; Fernandes, J; Proença, L; Sanchez, L; Fonseca, I; "Galvanic Corrosion Behaviour of Ti and Ti6Al4V Coupled to Noble Dental Alloys", Int. J. Electrochem. Sci., 8 (2013) 406 – 420  (access to paper)
  • Venancio, PG; Cottis, RA; Narayanaswamy, R; Fernandes, JCS; “Optical Sensors for Corrosion Detection in Airframes”, Sensors & Actuators: B. Chemical, 182 (2013) 774– 781doi: 10.1016/j.snb .2013.03.059
  •  Moreira, FTC; Dutra, RAF; Noronha, JPC; Fernandes, JCS; Sales, MGF, “Novel biosensing device for point-of-care applications with plastic antibodies grown on Au-Screen Printed Electrodes”, Sensors and Actuators B: Chemical, 182 (2013) 733-740, doi: 10.1016/j.snb.2013.03.099
  • Zomorodian, A; Garcia, MP; Moura e Silva, T; Fernandes, JCS; Fernandes, MH; Montemor, MF; “Corrosion resistance of a composite polymeric coating applied on biodegradable AZ31 magnesium alloy”, Acta Biomaterialia, 9 (10) (2013) 8660-8670, doi: 10.1016/j.actbio.2013.02.036
  • Nascimento, F; Vilaça, P; Miranda, R; Fernandes, JCS; Pires, F; "Corrosion Behavior in AA5754 friction stir welded alloys" Advanced Science and Technology Letters, 32 (2013), pp.1-5, doi: 10.14257/astl.2013.32.01
  • Teixeira, M; Loable, C; Almeida, A; Florêncio, O; Fernandes, JCS; Vilar, R; "Combinatorial Laser-Assisted Development of Novel Ti-Ta Alloys for Biomedical Applications", Anais do “ICALEO 2013 – 32nd International Congress on Applications of Lasers and Electro-Optics”, (CD-ROM edition, paper nº 303, Laser Institute of America, FL, USA), USA (Outubro 2013), 34-42 (access to paper)
  • Capelo, S; Proença, L; Fernandes, JCS; Fonseca, I; “Galvanic Corrosion of Two Non Noble Dental Alloys”, Int. J. Electrochem. Sci., 9 (2014) 593-609 (access to paper)
  • Moreto, JA; Marino, CEB; Bose Filho, WW; Rocha, LA; Fernandes, JCS; “SVET, SKP and EIS study of the corrosion behaviour of high strength Al and Al-Li alloys used in aircraft fabrication”, Corros. Sci. 84 (2014), pp. 30-41, doi: 10.1016/j.corsci.2014.03.001
  • Moreto, JA; Mota, JNC; Rossino, LS; Bose Filho, WW; Moreira, MF; Fernandes, JCS; Rocha, LA; "Estudo do Efeito do Transporte de Massa nas Curvas de Polarização Potenciodinâmica em Ligas de Alumínio da Série 7XXX de aplicação Aeronáutica", RBFTA, 1(1) (2014) pp. 23 37, doi: 10.3895/S2358-00892014000100003
  • Nascimento, F; Vilaça, P; Miranda, R; Fernandes, JCS; Pires, FMA; "Assessment of the Influence Process Parameters in the Friction Stir Welded Mechanical and Corrosion Properties of AA5754 Alloys", International Journal of Hybrid Information Technology, 7(4) (2014) pp. 153–162, doi: 10.14257/ijhit.2014.7.4.13
  • Nascimento, F; Vilaça, P; Andrade Pires, FM; Fernandes, JCS; Quintino, L; "Development of parameters for FSW of AZ31 Mg alloy with analysis of mechanical and corrosion properties", IIW 2014 - 67th Annual Assembly, Commission III, DocIII-B-03-14. Seoul, South Korea, (access to paper)
  • Zomorodian, A; Garcia, MP; Moura e Silva, T; Fernandes, JCS, Fernandes, MH; Montemor, MF; "Biofunctional Composite Coatings architectures based on Polycaprolactone and Nano hydroxyapatite for Controlled Corrosion Activity and Enhanced Biocompatibility of Magnesium AZ31 Alloy", Mater. Sci. Eng., C 48 (2015) 434–443, doi: 10.1016/j.msec.2014.12.027
  • Leiva-García, R; Fernandes, JCS; García-Antón, J; Muñoz-Portero, MJ; "Study of the Sensitisation Process of a Duplex Stainless Steel (Uns 1.4462) by Means of Confocal Microscopy and Localised Electrochemical Techniques", Corros. Sci. 94 (2015) 327–341, doi: 10.1016/j.corsci.2015.02.016
  • Nascimento, F; Fernandes, JCS; Vilaça, P; and F.M. Andrade Pires, FM; "Corrosion Behavior of the Friction Stir Welded AZ31 Magnesium Alloy", Microscopy and Microanalysis, 21 (S5) (2015), pp 33-34, doi: 10.1017/S1431927615013975
  • Zomorodian, A; Santos, C; Carmezim, MJ; Moura e Silva, T; Fernandes, JCS; Montemor, MF; "In-vitro corrosion behaviour of the magnesium alloy with Al and Zn (AZ31) protected with a biodegradable polycaprolactone coating loaded with hydroxyapatite and cephalexin", Electrochim. Acta, 179 (2015) pp. 431-440, doi: 10.1016/j.electacta.2015.04.013
  • Gomes, Pedro; Zomorodian, Amir; Kwiatkowski, Lech; Lutze, Rafal; Balkowiec, Alicja; Colaço, Bruno; Pinheiro, Vitor; Salvador, João; Montemor, Fátima; Fernandes, Helena; "In vivo assessment of a new multifunctional coating architecture for improved Mg alloy biocompatibility", Biomed. Mater. 11 045007 (2016), doi: 10.1088/1748-6041/11/4/045007
  • Fernandes, JCS; Nunes, A; Carvalho, MJ; Diamantino, TC; "Degradation of Selective Solar Absorber Surfaces in Solar Thermal Collectors - An EIS Study", Sol. Energ. Mat. Sol. C. 160 (2017) 149–163, doi: 10.1016/j.solmat.2016.10.015