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PROIECTE CERCETARE

Projects Coordinator (Director)

Prof. Dr. Lidia BENEA

Passed Projects

 

 

 

1.

Type and Name of the Project

COST 521 CORROSION OF STEEL IN REINFORCED CONCRETE STRUCTURES

RO1: “Comparative corrosion studies of Zn-Fe alloy coatings and Zn coatings on steel reinforcing structures”

Status of the project: Finalised 2002

International cooperation with other countries:

Summary:         

Corrosion of steel in concrete is one of the major problems with respect of the durability of reinforced concrete structures. Reinforcing steel in concrete is thought to develop a protective layer that shields the surface from further corrosion. The protective layer develops from or is enhanced by the high pH of the concrete. Corrosion rates that result in serious damage may take more than a decade to be detectable by rust and cracks at the concrete surface. Therefore, there is a need for non-destructive methods that can clarify the severity of corrosion earlier. More knowledge and better methods are desirable. It is more complicated to investigate the corrosion of steel in concrete by electrochemical techniques than corrosion of metals to different solutions. In solutions, a cell and electrodes systems can be arranged on a good geometry for electrochemical measurements. In concrete, interpretation of the measurements is more dependent upon theoretical considerations.

Partners

Romania: "Dunarea de Jos" University of Galati, Faculty of Metallurgy and Materials Science; INCERC Bucuresti.

France: Ecole Centrale Paris, Laboratoire C.F.H.

 

 

 

2.

Type and Name of the Project

COST 520 BIOFOULING AND MATERIALS

RO1: "Marine bio - corrosion of SiC-Ni nano-structured composite coatings".

International cooperation with other countries:

Status of the project: Finalised 2002

Summary              

Marine biofouling is one of the most important problems currently facing marine technology. In the marine environment any solid surface submerged in sea water will become covered by a complex layer consisting of an organic conditioning film, microfouling and macrofouling organisms such as marine bacteria, algae, protozoa, barnacles, mussels and tube worms. These fouling organisms cause serious technical problems by settling on ships' hulls, power plant cooling systems, aquaculture systems, fishing nets, pipelines and other marine infrastructure. Ships suffer increased drag and surface corrosion, leading to lower speeds, thereby causing higher fuel consumption additional CO2 emissions and maintenance costs.

Partners:

Romania: "Dunarea de Jos" University of Galati, Faculty of Metallurgy and Materials Science, faculty of Science, University "Polytechnica" of Bucharest.

France: Ecole Centrale Paris, Laboratoire C.F.H.

Italy: Trento University, Faculty of Materials Engineering

  

 

 

3.

Type and Name of the Project

COST 532: Triboscience and Tribotechnology: Superior Friction and Wear Control in Engines and Transmissions (2002-2007).

RO1: "Nano-structured composite coatings obtained by electrodeposition to be used in tribocorrosion systems: processing and properties investigation".

International cooperation with other countries:

Status of the project: Passed

Summary          

Tribocorrosion deals with the interaction of mechanical (wear) and chemical (corrosion) degradation phenomena leading to performance degradation and system failure. It represents an important economic factor for industry, including precision machines and devices, food processing, transportation systems as well as coating and lubricant fabrication. Tribocorrosion phenomena are still insufficiently understood at present, and more reliable methods for the prediction and optimisation of tribological systems are needed. In this multidisciplinary international project, mechanical, electrochemical, and surface science methods will be used for the investigation of friction and sliding wear of selected material systems immersed in a corrosive or aqueous environment, namely tap water as a possible replacement for environmentally hazardous organic lubricants. That study will be done at a macroscopic, a microscopic and a molecular level. The selected materials can be described as ‘tribo-reactive’ ones since they can react chemically with the environment especially in the wear track where surface films can be mechanically destroyed.

Partners

Romania: "Dunarea de Jos" University of Galati, Faculty of Metallurgy and Materials Science. University "Polytechnica" of Bucharest

Belge: KATHOLIEKE UNIVERSITEIT LEUVEN (KU.Leuven), Department of Metallurgy and Materials Engineering (MTM)

France: Ecole Centrale Paris, Laboratoire C.F.H.

Italy: Trento University, Faculty of Materials Engineering

Hungary: Eotvos Lorand University of Budapest.

 

 

 

4.

Type and Name of the Project

COPBIL: Romania - Belgia (Flandre)

Tribocorrosion of engineering materials in view of their industrial use as sliding parts in pumps, shafts, and motors operated in water-lubricated conditions (2003-2005).

Status of the project: Passed

Summary             

The mutual interactions between tribo-active materials and biodegradable additives on each other are not yet fully known.  Such additives are required to get control on the corrosiveness of tap water on many engineering materials and to a improve the load bearing capacity of water as lubricant.  The testing of some promising material combinations in expensive component testing can only be performed after selection of the best combinations.

        * Inventory and effectiveness of biodegradable additives to water for achieving low friction and high wear resistance,

     * Mechanism of degradation and restoration of triboreactive surface layers on sliding engineering materials immersed in water.

Two topics will be developed, namely:

- characterisation by electrochemical transient measurements,

- characterisation and modelling of tribochemical reactions in nano- and micro-sliding contacts.

Partners

Romania: "Dunarea de Jos" University of Galati, Faculty of Metallurgy and Materials Science.

Belgium: KATHOLIEKE UNIVERSITEIT LEUVEN (KU.Leuven), Department of Metallurgy and Materials Engineering (MTM)

 

 

 

 

5.

Type and Name of the Project

COPBIL: Romania – Franta:

ETUDE DE DÉPOTS COMPOSITES NANOSTRUCTURÉS, POUR LA PROTECTION DES SURFACES MÉTALLIQUES CONTRE LA TRIBOCORROSION (STUDIUL STRATURILOR COMPOZITE NANOSTRUCTURATE OBTINUTE ELECTROCHIMIC, DESTINATE PROTECŢIEI SUPRAFEŢELOR METALICE IMPOTRIVA TRIBOCOROZIUNII (ACTIUNILOR CUPLATE DE COROZIUNE SI UZURA MECANICA PRIN FRECARE)).

Status of the project: Passed (2005-2006).

Summary                

Tribo-corrosion is a complex degradation (cracking, corrosion, wear) process of metallic materials, which results from the combined effects of mechanical (including sliding and rolling friction, fretting, impacts, erosion ...) and environmental (electrochemical or chemical) solicitations occurring on their surfaces. Many aspects of this tribocorrosion process are not elucidated yet, because of the complexity of the individual mechanical and environmental processes involved, and because a synergy between these processes has to be considered. The research works on tribo-corrosion processes should improve the knowledge on viability and durability of a mechanical and/or electrical contact. When a tribo-corrosion process occurs in the presence of bio elements reacting with the materials surface the process is then defined as a bio-tribologic process. Tribo-corrosion as well as bio-tribologic processes can modify the material degradation kinetics and even lead to unknown surface properties. Tribo-corrosion is presently a subject of interest in different countries of the European Community and a need of joint research works and knowledge exchanges seems to be necessary between the different interested parties (industrials and scientific as well).

Partners

Romania: "Dunarea de Jos" University of Galati, Faculty of Metallurgy and Materials Science.

France: ECOLE CENTRALE PARIS, Laboratoire Corrosion - Fragilisation- Hydrogene.

 

 

 

6.

Type and Name of the Project

COST 534: New Materials and Systems for Prestressed Concrete Structures.

State of the project: Passed (2008).

International cooperation with other countries:

Summary           

Prestressing of concrete creates a compressive stress within concrete that will partially or wholly balance the tensile stresses that will occur in service. Concrete with a reservation of strength in compression is an ideal material for prestressing. Use of precast/prestressed concrete can significantly improve the construction quality and achieve substantial savings through reduction in onsite construction time and costs. Unexpected construction downtime due to weather condition is minimized. Furthermore, standardized fabrication of precast concrete elements in an industrial manufacture process can significantly improve quality of the concrete structures. All these factors of marine construction emphasize the value of prefabrication and modular construction.

Partners

Romania: "Dunarea de Jos" University of Galati, Faculty of Metallurgy and Materials Science. University "Polytechnica" of Bucharest, INCERC Bucharest.

France: Ecole Centrale Paris, Laboratoire C.F.H.

Italy: Trento University, Faculty of Materials Engineering.

 

 

 

7.

Type and Name of the Project:

COST D19 -CHEMISTRY: "Chemical functionality specific to the nanometer scale"

WG -Working Group (reference D19/009/03) entitled “Development of new nanostructured functional materials”

Title of the Project: "Nanostructured composite coatings obtained by electrodeposition - processing and properties characterisation".

State of the project: Passed (2003-2007).

International cooperation with other countries:

Romania: "Dunarea de Jos" University of Galati, Faculty of Metallurgy and Materials Science. University "Polytechnica" of Bucharest

Belgium: KATHOLIEKE UNIVERSITEIT LEUVEN (KU.Leuven), Department of Metallurgy and Materials Engineering (MTM)

France: Ecole Centrale Paris, Laboratoire C.F.H.

Italy: Trento University, Faculty of Materials Engineering

Hungary: Surface Chemistry and Corrosion Research, Chemical Research Centerof Budapest.

Summary:                

The proposed project contributes to our medium and long-term generic research, enhances the competitiveness and encourages new research objectives stimulated by the European Community. By this way, the Romanian Research Centre, CC-ITES (Interfaces-Tribocorrosion and Electrochemical Systems) can strengthen its leading role in its traditional research objectives, can develop new research fields at international level, therefore, the CC-ITES can be a basic institute in building the knowledge-based society in this field for Romania, helping the enterprises and universities in education and research.

The present work has the purpose of realisation and investigation of the nanostructured composite layers by using (for the first time) nanodispersed particles (for example SiC mean diameter 20nm).

 

 

 

8.

Titlul si tipul proiectului

Proiect tip A: CNCSIS – Grant 1347:

STRATURI COMPOZITE NANOSTRUCTURATE OBTINUTE ELECTROCHIMIC, DESTINATE PROTECTIEI SUPRAFETELOR FUNCTIONALE IN SISTEME TRIBOCOROZIVE.

(NANOSTRUCTURED COMPOSITE COATINGS OBTAINED BY ELECTRODEPOSITION FOR FUNCTIONALLY SURFACES PROTECTION IN TRIBOCORROSION SYSTEM).

(2005-2006).

Situatia proiectului: Passed (2005-2006).

Summary:    

Following the EU Commision concept on promoting nano-technologies and nano-sciences, knowledge based multifunctional materials and new production process our project aims to multidisciplinary studies of functionally surfaces obtained by electrodeposited nanostructured composite coatings. New nanostructured materials by codeposition of nanometric sized dispersed ceramic particles as SiC 20 nm nm with metallic matrices will be obtained. The mechanism and kinetik of codeposition will be studied by electrochemical techniques (EIS, PD cathhodic diagrams and I-E transients). The properties characterisation will be correlated with the performances requested in the field of uses as functional surfaces to improve the corrosion and wear resistance. By high level techniques as scanning and transmission electronic microsopy as well as atomic force microscopy and ultramicrotopography the correlation between nanostructures obtained and modification induced by dispersed particles will be done.

Partners:

Romania: Universitatea "Dunarea de Jos" din Galati, Facultatea de Metalurgie si Stiinta Materialelor.

Belgia: KATHOLIEKE UNIVERSITEIT LEUVEN (KU.Leuven), Department of Metallurgy and Materials Engineering (MTM)

Franta: Ecole Centrale Paris, Laboratoire C.F.H.

Italia: Trento University, Faculty of Materials Engineering.

 

 

 

9.

Type and Name of the Project: COST 533 Action on Materials for Improved Wear Resistance of Total Artificial Joints.

Title of the Project:WG3 – Tribochemistry: Alternative materials: Cobalt - matrix composite

coatings.

International cooperation with other countries:

State of the project: Passed (2006-2009).

Summary:                   

Obtaining new super-performant materials led to the development of a class of products known as composite materials.

A new method proposed for improving the properties of materials intended for biomedical applications is to use composite layers in the Co metal matrix with dispersed phases.

Fundamental requirements for biomaterials used in the construction of medical devices and artificial organs are biocompatible surfaces and favourable mechanical properties. Advances in medical treatment also demand substantial improvements in biomaterial properties. Conventional single-component polymer materials cannot satisfy these requirements. Therefore, multi-component polymer systems have been designed and prepared for developing new multifunctional biomaterials. Many biomaterials have been prepared by the immobilization methods such as the coating, grafting, or reacting of biocompatible polymers with the surface of substrates such as segmented polyurethane, nylon, polystyrene, and poly(ethylene terephthalate). Other methods include blending of the biocompatibility polymer with the substrate. In the above-mentioned methods, the surface properties can be controlled although the mechanical properties are hardly changed since they retain the properties of industrial substrate that does not adapt to tissues and organs. For instance, the difference in mechanical properties between a native artery and an artificial blood vessel induces hemodynamical flow disturbance and stress concentration near the anastomoses, causing further thrombus formation and neointimal hyperplasia. Therefore, biomaterials require mechanical properties that are matched with various regions such as soft tissue, hard tissue, and organs as well as corrosion and tribocorrosion resistance. To create the polymer biomaterials corresponding to the purpose and use conditions, methods that can control both the bulk properties and the surface properties are necessary.

Partners:

Belgium: KATHOLIEKE UNIVERSITEIT LEUVEN (KU.Leuven), Department of Metallurgy and Materials Engineering (MTM).

France: Ecole Centrale Paris, Laboratoire LGPM.

 

 

 

10.

Type and Name of the Project: COST D33 ACTION: Nanoscale Electrochemical and Bioprocesses (Corrosion) at Solid-aqueous Interfaces of Industrial Materials.

State of the project: Passed (2006-2009).

International cooperation with other countries:

Summary:

Bacteria adhesion is a very complicated process affected by many factors: bacterial/material properties and environment. Surface modification enables the evaluation of the effect of these parameters on bacterial adhesion. A rigorous study of the effects of surface chemistry / topography on bacterial adhesion and protein adsorption requires a model system that allows precise control of the type and the configuration of functional groups at the substrate surface under dynamic conditions. Regarding the environment it was observed that bacterial concentration versus time of exposure increases with increasing bacterial concentration and time up to a saturation level, specific for each type of surface-bacterial strain. Concentration of electrolytes, CO2, pH and ionic strength depending on bacteria and material surface characteristics presence of Antibiotics decreases, depending on bacterial susceptibility and antibiotics concentrations.

All these factors may influence bacterial adhesion by either changing physical interactions in phase one of adhesion or by changing surface characteristics of bacteria or materials.

Bacterial characteristics influence also biofilm formation and growth. hydrophobic bacteria prefer hydrophobic material surfaces. Materials Characteristics and Chemistry of surfaces are the most important factors in bacterial adhesion and biofilm growth. Representation of cyclic steps involved in the formation of an active biofilm are presented in Fig.

The processes of formation and detachment of cells are repeated in a cycle, thereby enabling further development of similar biofilms, which can subsequently attain new dimensions as a result of environmental influences.

Partners:

Belgium: KATHOLIEKE UNIVERSITEIT LEUVEN (KU.Leuven), Department of Metallurgy and Materials Engineering (MTM).

France: Ecole Centrale Paris, Laboratoire LGPM.

Germany: Duissburg-Essen University, Biofilm Centre, Aquatic Biotechnology.

 

 

 

11.

COST 636

Type and Name of the Project: COST 636 Action: XENOBIOTICS IN THE URBAN WATER CYCLE.

Project: The Influence of Urban and Suburban Water Characteristics on Green Vegetables Quality.

Project Coordinator: Lecturer Dr. Paula POPA.

State of the project: Passed

Summary:                      

Cost Action 636 covers a large range of issues regarding xenobiotics in the urban water cycle, from analytical questions and treatment methods to impact assessment and fluxes

Control of Water quality - nitrate and nitrite.

Method of investigation - Romanian law, European law.

Investigation nitrate and nitrite in green vegetables.

What are the influences of nitrate and nitrite over human health?

 

 

 

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PhD Expert: QUALITY DEVELOPMENT OF THE RESEARCHERS FORMATION BASED ON IMPROVED DOCTORAL PROGRAMS DEVELOPED THROUGH PARTNERSHIP.

SOPHRD/21/1.5/G/ID 19524

Director Proiect: Prof. Dr. Maria VLAD.

Responsabil Relatii Internationale(External relations officer):Prof. Dr. Lidia BENEA.

Partners:

   UNIVERSITATEA DUNAREA DE JOS DIN GALATI address Str. Domneasca nr. 47, Romania, cod postal 800 008, tel +40 236 413602, fax +40 236 461353, www.ugal.ro, fiscal cod 3127522, reprezented by prof.dr. Viorel MINZU, Rector -  main partner

n  2. ECOLE CENTRALE PARIS, address  Grande Voie des Vignes, F-92 295 Châtenay-Malabry Cedex, France , Phone +33 1 41 13 12 44, Fax: +33 1 41 13 12 62, site: www.ecp.fr, fiscal cod 999445224, represented by prof. dr. Hervé Biausser, Director -partner1

n  3. ECOLE NATIONALE SUPERIEURE DE CHIMIE DE PARIS,    address   Chimie Paris ParisTech 11, rue Pierre et Marie Curie ,75231 Paris Cedex 05, France, Phone 0143295474 , Fax: 143292059, site: www.enscp.fr ,  fiscal cod 1975337550017, represented by prof. dr. Alain Fuchs, Director -  partner2

n  4. KATHOLIEKE UNIVERSITEIT LEUVEN, BE LEUVEN 01, address Oude Markt 13 B-3000 Leuven Belgium, Phone: +3216324010 Fax :+3216322991, www.kuleuven.be, fiscal cod  BE 419.052.173 , represented by prof. dr. Marc Vervenne, Rector-partner 3.

 

                           
 

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