Search Results - "Kouloumbi, N."

Mechanical and anticorrosive properties of copper matrix micro- and nano-composite coatings by Lekka, M., Koumoulis, D., Kouloumbi, N., Bonora, P.L.

“…In the frame of the research domain of the production of metal matrix composite coatings, the aim of the present work was the production of copper…”
Get full text

Corrosion behaviour of steel rebars in reinforced concrete containing thermoplastic wastes as aggregates by Gavela, S., Ntziouni, A., Rakanta, E., Kouloumbi, N., Kasselouri-Rigopoulou, V.

“…► The polymers were used as a replacement of fine aggregates. ► Compressive strength decreases when conventional aggregates are replaced. ► Strength reduction…”
Get full text

Electric modulus and interfacial polarization in composite polymeric systems by TSANGARIS, G. M, PSARRAS, G. C, KOULOUMBI, N

“…The applicability of the electric modulus formalism is investigated on a Debye-type relaxation process, the interfacial polarization or Maxwell–Wagner–Sillars…”
Get full text

Electrochemical study of Aluminum-Fly Ash composites obtained by powder metallurgy by Marin, E., Lekka, M., Andreatta, F., Fedrizzi, L., Itskos, G., Moutsatsou, A., Koukouzas, N., Kouloumbi, N.

“…In this paper, two different ASTM C 618 Class C fly ashes (FA) were used for the production of aluminum metal matrix composites (MMCs) using powder metallurgy…”
Get full text

Reverse engineering methodology for studying historic buildings coatings: The case study of the Hellenic Parliament neoclassical building by Karoglou, M., Bakolas, A., Kouloumbi, N., Moropoulou, A.

“…In this work a reverse engineering methodology for the study of historic buildings coatings is presented. This includes different stages: characterization and…”
Get full text

Single and coupled electrochemical bursters during the electrodissolution/passivation of iron by Karantonis, A., Koutsaftis, D., Kouloumbi, N.

“…The ability to produce bursting electrochemical oscillations via the slow external variation of the applied potential is investigated during the…”
Get full text

Transient and Persistent Electrochemical Bursting Induced by Halide Ions by Koutsaftis, D, Karantonis, A, Pagitsas, M, Kouloumbi, N

“…The effect of halogen ions on the electrochemical oscillations of the Fe/H2SO4 system is studied experimentally. It is shown that the dynamic modification of…”
Get full text

Wear and corrosion resistance of laser surface hardened structural steel by Pantelis, D.I, Bouyiouri, E, Kouloumbi, N, Vassiliou, P, Koutsomichalis, A

“…CO 2 laser surface treatment in solid state has been performed on a CK60 structural steel. The laser energy density was lower than the melting threshold and…”
Get full text

Bistability, oscillations and bifurcations of the electrocatalytic oxidation of HCHO on Pt by Karantonis, A., Koutsaftis, D., Kouloumbi, N.

“…The electrocatalytic oxidation of formaldehyde on a polycrystalline platinum electrode is studied under potentiodynamic and galvanostatic conditions. It is…”
Get full text

Criteria and methodology for the evaluation of conservation interventions on treated porous stone susceptible to salt decay by Moropoulou, A, Kouloumbi, N, Haralampopoulos, G, Konstanti, A, Michailidis, P

“…Susceptibility of stone to salt decay is directly related to its microstructural and mechanical characteristics. In the present work, a porous stone from a…”
Get full text

Corrosion protection of steel in pumice lightweight mortar by coatings by Batis, G., Kouloumbi, N., Pantazopoulou, P.

“…The purpose of this work was to investigate the corrosion resistance of lightweight mortar exposed to corrosive environments. Widespread use of lightweight…”
Get full text

Interfacial relaxation phenomena in particulate composites of epoxy resin with copper or iron particles by Tsangaris, G.M., Kouloumbi, N., Kyvelidis, S.

“…Interfacial dielectric relaxations have been studied in composites made with epoxy resin and copper or iron particles. Over the temperature range reported…”
Get full text

Performance of silica fume-calcium hydroxide mixture as a repair material by Kasselouri, V., Kouloumbi, N., Thomopoulos, Th

“…The aim of this experimental work was to investigate the performance of a special concrete repair material. The use of silica fume (SF)-Ca(OH)2 mixture, with…”
Get full text

Effect of quartz filler on epoxy coatings behavior by KOULOUMBI, N, GHIVALOS, L. G, PANTAZOPOULOU, P

“…The effect of quartz (0-60 wt.%) on the mechanical, anticorrosive, and dielectric properties of pretreated steel coatings in a 3.5 wt.% NaCl solution was…”
Get full text

Determination of the performance of epoxy coatings containing feldspars filler by Kouloumbi, N, Ghivalos, L.G, Pantazopoulou, P

“…Purpose - To study the effect of feldspars as inorganic filler on the mechanical and dielectric properties of epoxy coatings.Design methodology approach -…”
Get full text

Study of the effect of AC-interference on the cathodic protection of a gas pipeline by Kouloumbi, N, Batis, G, Kioupis, N, Asteridis, P

“…The aim of this fieldwork was the study of the effect of 50Hz AC, induced by high-voltage power lines, on the cathodic protection system of a natural gas…”
Get full text

Anticorrosion performance of epoxy coatings on steel surface exposed to deionised water by Kouloumbi, N, Pantazopoulou, P, Moundoulas, P

“…The objective of this work was to examine the anticorrosive behaviour of four different epoxy coatings, which were formulated with zinc pigments and were…”
Get full text

Protection of reinforced concrete by coatings and corrosion inhibitors by Batis, G, Kouloumbi, N, Pantazopoulou, P

“…The use of coatings (organic and inorganic) for the protection of reinforced concrete is widespread. The advantages of inorganic coatings are that they are…”
Get full text

Evaluation of the behaviour of particulate polymeric coatings in a corrosive environment. Influence of the concentration of metal particles by Kouloumbi, N., Tsangaris, G.M., Skordos, A., Kyvelidis, S.

“…In this work pretreated steel specimens were coated by a spinning process with particulate polymeric composites consisting of an epoxy resin (DOW 331) and iron…”
Get full text

Corrosion and wear resistant electrodeposited composite coatings by Lekka, Maria, Kouloumbi, Niki, Gajo, Mauro, Bonora, Pier Luigi

“…Composite electroplating is a method allowing to co-deposit fine particles of metallic or non metallic compounds into the plated layers in order to improve the…”
Get full text