Rui Ramos Ferreira e Silva

Associate Professor

Short CV

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Associate Professor at Aveiro University since 2000.


PhD in Materials Science and Engineering, "Sintering Kinetics and Wear behaviour of Si3N4 Cutting Tools", University of Aveiro, 1993.


Supervisor of 11 PhD thesis and 60 MSc dissertations. Manager of more than 35 scientific/technological projects. Co-author of 5 patents, 1 book, 3 book chapters and of about 220 papers in journals included in the Science Citation Index.Referee of 45 international scientific journals included in SCI. H-index=29 (Web of Science).

Scientific Interests

Synthesis by chemical vapor deposition (CVD) of carbon nanostructures and carbon-based coatings (microcrystalline and nanocrystalline diamond, carbon nanotubes, graphene) for mechanical components, electronics and biomedicine applications.

Atomic layer deposition (ALD) of ultrathin coatings for microelectronics, catalysis and applications in energy related fields.

Processing and mechanical behaviour of ceramic materials and ceramic matrix composites.

Present Research Group

Researchers: Filipe Oliveira, Miguel Neto, Ana Girão. Post-docs: Ricardo Silva, Dhananjay Sharma. PhD students: Alyne Mendes, Alice Marciel, Aneeta Jagernauth, Marta Forte, Inês Oliveira, Sérgio Pratas. 

Main present collaborators

Carlos Achete (INMETRO, Rio de Janeiro, Brasil); Nicola Pinna (Humboldt-Universität zu Berlin, Institut für Chemie); José Gomes (Departamento de Engenharia Mecânica, Universidade do Minho); Florinda Costa (Departamento de Física, Universidade de Aveiro); Alberto Ferro (Instituto Superior Técnico, Universidade Técnica de Lisboa); Luísa Durães (Departamento de Engenharia Química, Universidade de Coimbra); João Miguel Carrapichano (Departamento de Engenharia Mecânica, Instituto Superior de Engenharia de Coimbra); Cristiano Abreu (Departamento de Física, Instituto Superior de Engenharia do Porto); Joaquim Sacramento (Durit S.A.); Ascensão Lopes (Faculdade de Engenharia, Universidade do Porto); Fabien Bénédic (Université Paris 13); Manuel Belmonte (Instituto de Ceramica y Vidrio, Madrid).

Teaching Activity

Undergraduation courses teaching of Heat Treatments, Materials Properties (Mechanics), Metallurgical Technology, among others. Post-graduation teaching of Materials Development, Metallic Materials, 2-D and 3-D Nanostructured Materials.

Present projects

- PI of project “DHardTools - Precision Machining with CVD Diamond Cutting Tools”, 2019-21. Pro otor: Palbit S.A.

- PI at UA of project “Fosforetos de metais de transição nanoestruturados para armazenamento de energia electroquímica- MePhEES”, 2018-2020 (Projeto UTAP-EXPL/CTE/0008/2017). Colaboration with Lifeng Liu (INL). .

- PI at UA of project “PLASCOAT - Metalização inovadora e ecológica de plásticos por PVD e CVD assistido por plasma” em co-promoção com a Prirev-Engenharia de Superfícies (POCI-01-0247-FEDER-003493), 2016-2018. Promotor: PRIREV - Engenharia de Superfícies.

- Participant in TOOLING4G – Advanced Tools for Smart Manufacturing”, 2018-2021 (Programa Mobilizador Ref. TOOLING4G/2016/24516). Promotor: Centimfe - Centro Tecnológico da Indústria de Moldes.

- Participant in SGH - SMART GREEN HOMES”, 2016-2019 (Projeto N.º 7678 Ref. POCI-01-0247-FEDER-007678). Promotor: Bosch Termotecnologia S.A.

- Participant in “ULTRAGRAF -Harnessing third-harmonic generation in graphene-coated optics -new devices for ultrafast pulse measurement and frequency upconversion”, 2017-2020 (Projeto M-ERA.NET2/0003/2016). Project PI: Hélder Crespo (Faculdade de Ciências, Universidade do Porto).

Selected Publications

Publications in the last 5 years:


A.M.C. Marciel, M.P.F. Graça, A.C. Bastos, L. Pereira, J.S. Kumar, J. Borges, F. Vaz, M. Peres, K. Lorenz, R.F. Silva, “Molybdenum Oxide Thin Films Grown on Flexible ITO-Coated PET Substrates”, Materials 14 (2021) 821.


M.A. Neto, D. Esteves A. V. Girão, F. J. Oliveira, R. F. Silva, “Tough negative temperature coefficient diamond thermistors comprising tungsten carbide ohmic contacts”, Diam. Relat. Mater. 109 (2020) 108036.


A. Jaggernauth, J.C. Mendes, R.F. Silva, “Atomic layer deposition of high-k layers on polycrystalline diamond for MOS devices: A review”, J. Mater. Chem. C 8 (2020) 13127-13153.

R. M. Silva, L. D. Carlos, J. Rocha, R. F. Silva, “Luminescent thin films of Eu-bearing UiO-66 Metal Organic Framework prepared by ALD/MLD”, Appl. Surf. Sci. 527 (2020) 146603.

A. Jaggernauth, R.M. Silva, M.A. Neto, F.J. Oliveira, I.K. Bdikin, M.P. Alegre, M. Gutiérrez, D. Araújo, J.C. Mendes, R.F. Silva, “Interfacial Integrity Enhancement of Atomic Layer Deposited Alumina on Boron Doped Diamond by Surface Plasma Functionalization”, Surf. Coat. Techn. 397 (2020) 125991.

I.E. Oliveira, R.M. Silva, A.V. Girão, J.L. Faria, C.G. Silva, R.F. Silva, “Facile preparation of ZnO/CNTs nanocomposites via ALD for photocatalysis applications”, European J. Inorganic Chem. (2020) 1743-1750.

G. Gaspar, J. Rodrigues, A.J. S. Fernandes, M.R. Soares, T. Monteiro, R.F. Silva, F.M. Costa, “Nd:YAG laser scribed zinc oxide on semi-flexible copper foils”, Mater. Lett. X 5 (2020) 100038.

D. Mukherjee, F.J. Oliveira, S.C. Trippe, S. Rotter, M. Neto, R.F. Silva, A.K. Mallik, K. Haenen, C.-M. Zetterling, J. C. Mendes, “Deposition of diamond films on single crystalline silicon carbide substrates”, Diam. Relat. Mater. 101 (2020) 107625.

Eduardo Silva, Sérgio Pratas, Aneeta Jaggernauth, Ricardo Silva, Miguel Neto, Filipe Oliveira, Rui Silva, “An Overview of CVD Diamond Growth on Ceramics and Synthesis of CNTs at the University of Aveiro”, Bol. Grupo Español Carbón 54 (2019) 55-65.

Denise Machado, Maria J. Hortigüela, Gonzalo Otero-Irurueta, Paula A.A.P. Marques, Ricardo Silva, Rui F. Silva, Victor Neto,“Graphene Based Sensors for Air Quality Monitoring – Preliminary Development Evaluation”, J. Coating Sci. Techn. 6 (2019) 10-21.

A. Lamy-Mendes, A.V. Girão, R.F. Silva, L. Durães, “Polysilsesquioxane-based silica aerogel monoliths with embedded CNTs”, Microporous and Mesoporous Mater. 288 (2019) 109575.

Helder Puga, Filipe J. Oliveira, Ana Girão, Rui Silva, José Grilo, “Influence of external loading on the resonant frequency shift of ultrasonic assisted turning: numerical and experimental analysis”, Int. J. Adv. Manuf. Technol. 101 (2019) 2487–2496.

N. F. Santos, S. O. Pereira, A.J.S. Fernandes, T.L. Vasconcelos, C.M. Fung, B.S. Archanjo, C. A. Achete, S.R. Teixeira, R.F. Silva, F.M. Costa, “Physical Structure and Electrochemical Response of Diamond-Graphite Nanoplatelets: From CVD Synthesis to Label-Free Biosensors”, ACS Applied Materials & Interfaces 11 (2019) 8470-8482.

Juliana Marques, Tiago D. Gomes, Marta A. Forte, Rui F. Silva, Carlos J. Tavares, “A new route for the synthesis of highly-active N-doped TiO2 nanoparticles for visible light photocatalysis using urea as nitrogen precursor”, Catalysis Today 326 (2019) 36-45.

P. Pedrosa, M.S. Rodrigues, M.A. Neto, F.J. Oliveira, R.F. Silva, J. Borges, M. Amaral, A. Ferreira, L.H. Godinho, S. Carvalho1, F. Vaz, “Properties of CrN thin films deposited in plasma activated ABS by reactive magnetron sputtering”, Surf. Coat. Techn. 349 (2018) 858-866.

R.P. Domingues, M.S. Rodrigues, M. Proença, D. Costa, E. Alves, N. P. Barradas, F.J. Oliveira, R.F. Silva, J. Borges, F. Vaz, “Thin films composed of Au nanoparticles embedded in AlN: Influence of metal concentration and thermal annealing on the LSPR band”, Vacuum 157 (2018) 414-421.

A. Lamy-Mendes, R.F. Silva, L. Durães, “Advances on carbon nanostructures-silica aerogel composites: a review”, J. Mater. Chem. A. 6 (2018) 1340-1369.

N. Sevivas, F.G. Teixeira, R. Portugal, B. Santos B, J. Espregueira-Mendes, F.J. Oliveira, R.F. Silva, N. Sousa, K.W. Ng, A.J. Salgado, “Mesenchymal stem cells secretome improves tendon cell viability in vitro and tendon-bone healing in vivo when a tissue engineering strategy is used in a rat model of chronic massive rotator cuff tear”, Am. J. Sports Med. 46 (2018) 449-459.

M. Shabani, J. Sacramento, F.J Oliveira, R.F. Silva, "Multilayer CVD diamond coatings in the machining of a Al6061-15vol%Al2O3 composite", Coatings 7 (2017) 165 (13 pgs.).

M. Shabani, J.M. Carrapichano, F.J. Oliveira, R.F. Silva, “Multilayered diamond mechanical seal rings under biodiesel lubrication and the full sealing conditions of pressurized water”, Wear 384-385 (2017) 178–184.

E.L. Silva, M. Yogendra, A.J.S Fernandes, R.F. Silva, R. Adelung, F.J. Oliveira, M.L. Zheludkevich, “Direct synthesis of electrowettable carbon nanowall-diamond hybrid materials from sacrificial ceramic templates using HFCVD”, Advanced Materials Interfaces (2017) 1700019.

M. Shabani, C.S. Abreu, J.R. Gomes, R.F. Silva, F.J. Oliveira, “Effect of relative humidity and temperature on the tribology of multilayer micro/nanocrystalline CVD diamond coatings”, Diam. Relat. Mater. 73 (2017) 190–198

R.M. Silva, G. Clavel, Y. Fan, P. Amsalem, N. Koch, R.F. Silva, N. Pinna, “Coating of vertically aligned carbon nanotubes by a novel manganese oxide atomic layer deposition process for binder-free hybrid capacitors”, Advanced Materials Interfaces 3 (2016) 1600313.

A. Jaggernauth, R.M. Silva, M.A. Neto, , M.J. Hortiguela, G. Gonçalves, F.J. Oliveira, R.F. Silva, M.A. Vila, “Nano-Graphene Oxide Functionalization with Organic and Hybrid Organic-Inorganic Polymers by Molecular Layer Deposition”, J. Phys. Chem. C 120 (2016) 24176−24186.

R.M. Silva, M.C. Ferro, J.R. Araujo, C. A. Achete, R.F. Silva, N. Pinna, “Nucleation, growth mechanism and controlled coating of ZnO ALD onto vertically aligned N-doped CNTs”, Langmuir 32 (2016) 7038–7044.

B. Baudrillart, F. Bénédic, A.S. Melouani, F.J. Oliveira, R.F. Silva, J. Achard, “Low-temperature deposition of nanocrystalline diamond films on silicon nitride substrates using distributed antenna array PECVD system”, Phys. Status Solidi A 213 (2016) 2575-2581.

D. Mukherjee, F.J. Oliveira, R.F. Silva, J.F. Carreira, L. Rino, M.R. Correia, S.Z. Rotter, L.N. Alves, J.C. Mendes, “Diamond-SAW devices: a reverse fabrication method”, Phys. Status Solidi C 13 (2016) 53–58.

M.A. Neto, G. Pato, N. Bundaleski, O.M.N.D. Teodoro, A.J.S. Fernandes, F.J. Oliveira, R.F. Silva, “Surface modifications on as-grown boron doped CVD diamond films induced by the B2O3-ethanol-Ar system”, Diam. Relat. Mater. 64 (2016) 89-96.

E.M. Gonçalves, M.A. Neto, F.J. Oliveira, M.H. Fernandes, R.F. Silva, M. Vallet-Regíc, M. Amaral, M. Vila, “Three-dimensional printed PCL-hydroxyapatite scaffolds filled with CNTs for bone cell growth stimulation”, J. Biomed. Res. B Applied Biomaterials 104 (2016) 1210-19.

A.F. Carvalho, T. Holz, N.F. Santos, M.C. Ferro, M.A. Martins, A.J.S. Fernandes, R.F. Silva, F.M. Costa, "Simultaneous CVD synthesis of graphene-diamond hybrid films", Carbon 98 (2016) 99-105.

Ongoing Supervisions


Add additive manufacturing to Portuguese industry (Add.Additive)

PartnerIndustry National
O Fabrico Aditivo (FA) é uma tecnologia de produção que permite produzir peças com formas complexas a partir de dados digitais. No contexto de competitividade industrial que se verifica atualmente, o FA é uma tecnologia que tem de ser explorada, na medida em que pode responder às exigências do mercado pelo facto de gerar soluções céleres e permi...

Advanced Tools for Smart Manufacturing (Tooling4G)

PartnerIndustry National
A globalização dos mercados é uma realidade bem presente e inescapável. As empresas conscientes desta realidade sabem que só podem ser competitivas se forem capazes de criar internamente condições de flexibilidade produtiva, de produzir e gerir conhecimento e, assim, conseguirem ultrapassar os desafios impostos diariamente por atuais e potenciai...

BIO-TRIBODIAM - DLC and CVD diamond coated Si3N4 ceramics for tribological and biomedical purposes (BIO-TRIBODIAM)

CoordinatorEuropean Comission
The goal of the project is the development and application of highly adherent CVD diamond (in polycrystalline and nanocrystalline NCD- forms) and diamond like carbon (DLC) coatings on compatible Si3N4 materials.This ceramic presents a close thermal expansion coefficient to that of diamond, reducing the thermal stresses at...

BIOCORDIAN – Ultramicroelétrodos de SECM em Diamante Nanocristalino para Biologia e Corrosão (PTDC/CTM-MET/113645/2009)

PartnerFundação para a Ciência e a Tecnologia
Ultramicroelectrode Nanocrystalline CVD diamond Scanning electrochemistry Corrosion

CARBIFINO - Concepção de novos graus de metal duro de granulometria sub-a nono-micrométrica com elevada resistência ao desgaste erosivo (CARBIFINO)

Local CoordinatorIndustry National
Pretende-se apresentar soluções inovadoras para responder às solicitações prementes do mercado consumidor do metal duro no sentido do prolongamento do tempo de vida de componentes sujeitos a desgaste erosivo, das indústrias extractivas de petróleo e gás natural e indústrias química e farmacêutica. Com este fim, desenvolver-se-ão novas composiçõe...

Development and characterization of ceramic composite materials for thermomechanical applications (REEQ/1066/CTM/2005)

CoordinatorFundação para a Ciência e a Tecnologia
The developed project allowed the acquisition of two pieces of equipment: a high temperature graphite furnace (max. 2000ºC) of semi-industrial size with controlled atmosphere, for sintering of ceramic composites, and an universal mechanical testing machine for flexural, compressive and creep characterization up to 1400°C of those materials in co...

Fabricação aditiva de componentes em metal duro (3D.Carbide)

PartnerIndustry National
O projeto 3D.Carbide tem como objetivo desenvolver a fabricação aditiva (AM-Additive Manufacturing) para aplicação na indústria de componentes em metal duro, apresentando-se como uma tecnologia promissora para componentes funcionais de elevado valor acrescentado, produzidos em pequenas séries.

Fornos limpos de alta temperatura para novas tecnologias de fabrico aditivo e ligas de alta entropia (HiTClean)

PartnerIndustry National
O HiTClean tem como objetivo desenvolver novos fornos de atmosfera controlada e alta temperatura, completamente metálicos no interior, sem utilização de grafite e por isso considerados limpos pois previnem a oxidação dos materiais a ser processados e evitam a contaminação dos mesmos com carbono.

Functionally graded aluminium matrix composites obtained by centrifugal casting: processing, characterisation and modelling (POCTI/CTM/12301/2001)

Local CoordinatorFundação para a Ciência e a Tecnologia
In this project a centrifugal induction casting technique will be used in order to produce aluminium-based FGMMCs, with controlled distribution of ceramic particles. The main aims of the project are the following:- To study and model the influence of the processing conditions and of the composition ofthe aluminium alloy and ceramic r...

Graphenest’s New Engineered System and its Implementation Solutions (GNESIS)

PartnerIndustry National
Aumentar para uma escala industrial a tecnologia da Graphenest e demonstrar a aplicabilidade do grafeno obtido em três áreas de aplicação distintas: Tintas anticorrosivas; Polímeros com escudo eletromagnético; Elétrodos de telas táteis.

Harnessing third-harmonic generation in graphene-coated optics -new devices for ultrafast pulse measurement and frequency upconversion (UltraGraf)

PartnerFundação para a Ciência e a Tecnologia

Laboratory for Biomaterials and Biomedical Devices (REEQ/796/CTM/2005)

PartnerFundação para a Ciência e a Tecnologia
The equipment has benn installed November 2007. Actions developed: - research and development of new biomedical materials and implants; - share in the effort of the University of Aveiro to establish a local strategy in the field of Health Sciences; - collaboration in research activities within CICECO (Research Centre for Ceramics and Composites)

Manufatura aditiva de compósitos de base cerâmica para componentes mecânicos (3DCompCer)

PartnerIndustry National
Promovido por um consórcio composto pela PALBIT,S.A.(promotor líder), pelas Universidades de Aveiro e de Coimbra, o projeto 3DCompCer visa o desenvolvimento de ferramentas de maquinação complexas através de técnicas inovadoras de manufatura aditiva, nomeadamente fresas, com sistem...

Metal/Ceramic Joining for Biomedical Applications: Processing Conditions vs Microstructure vs Mechanical and Corrosion Behaviour (POCTI/CTM/33384/1999)

Local CoordinatorFundação para a Ciência e a Tecnologia
Metal/Ceramic Joining Biomedical Applications Structural Characterisation Degradation Behaviour

Metalização inovadora e ecológica de plásticos por PVD e CVD assistido por plasma (PlasCoat)

Local CoordinatorIndustry National

Mobilizar competências tecnológicas em Engenharia de Superficies (ON-SURF)

PartnerIndustry National
O projeto ON-SURF é um Programa Mobilizador que envolve transversalmente empresas Nacionais de diferentes sectores de atividade e entidades não empresariais do SI&I, num consórcio alargado, em torno do eixo prioritário na Agenda da Inovação Internacional, a Engenharia de Superfícies. Pretende-se desenvolver e aplicar processos de m...

Nanocompósitos cerâmicos produzidos por CIM para componentes anti-desgaste e antiestáticos (WhatCIM)

PartnerIndustry National
O projeto WhatCIM tem como objetivo desenvolver novos guia-fios para a indústria de têxteis e o seu processo de fabrico baseados em materiais cerâmicos nanocompósitos e em revestimentos nanoestruturados. Esta inovação será aplicada a casos de estudo com vista a ultrapassar problemas associados ao desgaste e àeletricidade estática, e a demais pro...

Nanocrystalline diamond (NCD) films on silicon nitride ceramics for tribological applications - NANODIAM (POCI/CTM/59449/2004)

CoordinatorFundação para a Ciência e a Tecnologia
nanocrystalline diamond chemical vapour deposition (CVD) tribology silicon nitride

Nanoestruturas híbridas de carbono em MEMS - NanoCarboMEMS (PTDC/CTM-NAN/117284/2010)

PartnerFundação para a Ciência e a Tecnologia
nanocrystalline diamond – NCD carbon nanotubes – CNT hybrid material microelectromechanical systems – MEMS

Nanostructured transition Metal Phosphides for Electrochemical Energy Storage (Mephees)

Local CoordinatorFundação para a Ciência e a Tecnologia
Transition metal phosphide Nanostructure Electrochemical energy storage Battery

Nanotubes and Nanowires based hybrid nanostructures (PTDC/CTM/098361/2008)

CoordinatorFundação para a Ciência e a Tecnologia
Nanotubes and Nanowires Atomic Layer Deposition Nanoparticles Nonaqueous sol-gel chemistry

New Methodology for the production of light weight intermetallic matrix composites with improved mechanical properties (POCI/CTM/57536/2004)

Local CoordinatorFundação para a Ciência e a Tecnologia
Intermetallics Nanocomposite materials Consolidation Mechanical properties

Precision Machining with CVD Diamond Cutting Tools (DHardTools)

Local CoordinatorIndustry National
O projeto DHardTools tem como objetivo o desenvolvimento de ferramentas de metal duro com revestimentos de diamante funcionais para micromaquinagem de materiais ultraduros. O desenvolvimento deste produto apresenta como inovação a possibilidade de alargar o campo de aplicação das ferramentas revestidas com diamante e a monitorização do processo ...

REVDIA – REVestimentos de DIAmante para Componentes Anti-Desgaste” (REVDIA)

Local CoordinatorIndustry National
A empresa promotora Durit é detentora da tecnologia de processamento de metal duro e tem um profundo conhecimento das tendências actuais do mercado para peças anti-desgaste. No seguimento da sua estratégia empresarial, a Durit pretende diversificar a sua oferta com novos materiais e atingir novos segmentos de mercado, visando adquirir vantagens...

SGH : Smart Green Homes (Smart Green Homes)

PartnerIndustry National
The Smart Green Homes (SGH) Project aims to develop integrated product and technology solutions for the households, raising standards of comfort, safety and user satisfaction to a new level and, at the same time, to respond to the problems of sustainability of the Planet, increasing the energy efficiency and reducing the emission of gaseous poll...

Silicon nitride ceramic components coated with nanocrystalline CVD diamond for total hip replacement - HIPCerDiam (PTDC/EME-PME/112910/2009)

PartnerFundação para a Ciência e a Tecnologia
Hip joint silicon nitride nanocrystalline diamond wear

StemCelCan - Modulation of induced pluripotent stem cells differentiation by carbon nanotube templates (PTDC/CTM-NAN/119184/2010)

PartnerFundação para a Ciência e a Tecnologia
carbon nanotubes induced stem cells neural differentiation cell culture platform

SUB0 - Aumento da vida de ferramentas e orgãos de máquinas por tratamento térmico específico (SUB0)

PartnerIndustry National
O consórcio, criado no âmbito da presente candidatura, entre a empresa F. Ramada, Aços e Indústrias, S.A e a Universidade de Aveiro tem como objectivo o desenvolvimento de uma tecnologia de tratamento térmico não convencional, destinado à produção de ferramentas e engrenagens com melhores características de resistência ao desgaste e de estabilid...

Superconducting Borides: Properties and Materials Processing (POCTI/CTM/39340/2001)

PartnerFundação para a Ciência e a Tecnologia
superconductivity covalent compounds doping materials processing and modificati

Tailored Si3N4 - Sic Ceramic Composites for CVD Diomond Coating (POCTI/CTM/35490/1999)

CoordinatorFundação para a Ciência e a Tecnologia
CVD Diamond Silicon Nitride Adhesion Ceramic Composites

Transport properties and electrochemical applications of ceria-based nanomaterials (POCTI/CTM/39381/2001)

PartnerFundação para a Ciência e a Tecnologia
Nanomaterials anodes ceria condução mista

Tribosistemas Constituídos por Revestimentos Multicamada de Diamante Cvd Micro/Nanocristalino – MULTIDIACOAT (PTDC/EME-TME/100689/2008)

CoordinatorFundação para a Ciência e a Tecnologia
tribology CVD diamond multilayers wear

VEDACERAM - Anéis Vedantes Compósitos e Matriz Cerâmica (Nitreto de Silico) (VEDACERAM)

CoordinatorIndustry National
Pretende-se desenvolver um protótipo de um novo sistema de anéis vedantes dinâmicos (empanques mecânicos) fabricado com base num material compósito cerâmico: matrizes de nitreto de silício (Si3N4) reforçadas por partículas de carboneto de silício (SiC). Estes empanques destinam-se a aplicações hidráulicas e pneumáticas industriais em condições d...

Wear of Aluminium Matrix Composites (POCTI/CTM/46086/2002)

Local CoordinatorFundação para a Ciência e a Tecnologia
Sliding wear Fretting wear Processing techniques Precipitation hardening


Machining hardmetal with CVD diamond direct coated ceramic tools: effect of tool edge geometry

Almeida, FA; Oliveira, FJ; Sousa, M; Fernandes, AJS; Sacramento, J; Silva, RF
2005, DIAMOND AND RELATED MATERIALS, 14, 3-7, 651-656.

Directly MPCVD diamond-coated Si3N4 disks for dental applications

Fernandes, AJS; Salgueiredo, E; Oliveira, FJ; Silva, R; Costa, FM
2005, DIAMOND AND RELATED MATERIALS, 14, 3-7, 626-630.

Mechanical properties evaluation of fluor-doped diamond-like carbon coatings by nanoindentation

Trippe, SC; Mansano, RD; Costa, FM; Silva, RF
2004, THIN SOLID FILMS, 446, 1, 85-90.

Textured BI-Sr-Ca-Cu-O rods processed by laser floating zone from solid state or melted precursors

Carrasco, MF; Costa, FM; Silva, RF; Gimeno, F; Sotelo, A; Mora, M; Diez, JC; Angurel, LA

Sintering of new SiC-Phosphate composite materials for grinding wheels fabrication

Silva, RF; Berlinov, HH

Cutting of free standing CVD diamond films by optical fibre guided Nd : YAG laser

Boutinguiza, M; Quintero, F; Belmonte, M; Fernandes, AJS; Costa, FM; Silva, RF; Pou, J; Perez-Amor, M
2004, ADVANCED MATERIALS FORUM II, 455-456, 614-618.
ISBN: 0-87849-941-5

Crystallisation kinetics of beta-spodumene in lithium aluminosilicate sol-gel glasses

Moreira, MDDRF; Salvado, IMM; Silva, RF

LFZ fibre texture modification induced by electrical polarization

Costa, FM; Carrasco, MF; Ferreira, N; Silva, RF; Vieira, JM

Electrical field freezing effect on laser floating zone (LFZ)-grown Bi2Sr2Ca2CU4O11 superconducting fibres

Carrasco, MF; Silva, RF; Vieira, JM; Costa, FM

Porosity assessment of beta-spodumene/glass matrix composites by Small Angle Neutron Scattering

Margaca, FMA; Moreira, M; Teixeira, J; Silva, RF; Salvado, IMM
2004, ADVANCED MATERIALS FORUM II, 455-456, 230-234.
ISBN: 0-87849-941-5


Chemical vapour deposition by hot filament

Processes National

Fernandes, António; Costa, Florinda; Silva, Rui; Oliveira, Filipe; Amaral, Margarida; Cabanillas, Manuel

The present invention relates to hot filament chemical vapour deposition process (CVD) to increase the surface properties of silicon nitride (Si3N4) by applying nanodiamond films. The nanometric size of grains, the chemical inertness and diamond intrinsic hardness, associated with excellent adhesion to silicon nitride, provide high wear...

Diamond flat thermistors

Devices National

Oliveira, Filipe; Silva, Rui; Neto, Miguel

Manufacturing process of NTC (negative temperature coefficient) flat thermistors consisting of diamond films deposited on sintered ceramic substrates. These devices comprise a temperature sensitive diamond surface on one side of the substrate and metallic carbide ohmic contacts on the other. The process has the advantage of using a sing...

Manufacturing technique of textured superconducting materials by electrical assisted laser floating zone

Processes National

Costa, Florinda; Vieira, Joaquim; Silva, Rui; Carrasco, Maria

The present invention relates to the solidification process control technology of superconductive ceramic materials of the Bi-Sr-Ca-Cu-O system by Laser-Floating-Zone (LFZ) through application of electric current during fibers growth.The high thermal gradient associated with the LFZ technique results in a partial alignment o...

Mixed ionic-ionic conductors, synthesis of such conductors for directional solidification and its usage

Materials National

Costa, Florinda; Silva, Rui; Figueiredo, Filipe; Carvalho, Ricardo;

The mixed ionic-ionic type conductors in this invention are eutectic ceramics represented by the formula (BaZr1-xMxO3-x/2)1-z (Zr1-yMyO2-y/2)z wherein M is at least one element selected from the group of rare earth elements (Y, Sc, Ga), Al and In, with 0.03 ≤ x ≤ 0.20 and 0.03 ≤ y ≤ 0.20, and z being such tha...

Process to obtain red clay ceramic by incorporating sludge from effluents treatment generated in metal surface treatment operations, or sands or smelting sand fines, and resulting products

Processes National

Batista, João; Silva, Rui; Castro, Fernando; Figueiredo, José

The present invention relates to the manufacture of red clay ceramic products, containing sludge from treatment of effluents generated in metal surface treatment operations. The optimization of the processing conditions, particularly the mixing of sludge with the clay matrix, had by reference the minimum deviation from the n...

Silicon nitride sealing rings with diamond coating

Products InternationalNational

Silva, Rui; Fernandes, António; Amaral, Margarida ; Almeida, Flávia; Oliveira, Filipe ; Costa, Florinda; Carrapichano, João

The present invention refers to a dynamic mechanical sealing system comprising rings manufactured by means of coating silicon nitride ceramic pieces (Si3N4) with diamond films obtained by Chemical Vapour Deposition (CVD). The said mechanical elements should simultaneously warrant low friction, wear-resistance and good sealant properties...

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