Publications Scientifiques

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    Effect of the aggressive environment on the damage of a glass polyester composite developed by hand layup process
    (Hindawi Publishing Corporation, 2015) Belloul, Nabila; Hamadache, Hassiba; Benyahia, Ali Ahmed; Serier, Aicha
    This work treats the behavior of a glass fibre/unsaturated polyester (UP) composite with structural deffects subjected to the attack of two corrosive solutions: H2SO4 and NaOH. The gravimetric analysis, the uptake mass of the resin, and the interfaces in the composite are established according to the proportion of the matrix/composite. The obtained results showed that, in the acidic solution, the glass fibre and the fibre/matrix interface absorption share is more significant than the alkaline solution. While the Fourier transform infrared analysis (FT-IR) of the UP resin revealed the presence of chemical degradation phenomenon (hydrolysis), the fibre corrosion was characterized by the atomic absorption analysis (AAS). The fibres/matrix interfaces degradation was confrmed by microscopic observations (SEM). The difusion kinetics of the both acid and alkaline solutions and chemical and mechanical degradation are afected by the presence of the pores in elaborated material
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    Preparation and characterization of foam glass based waste
    (2011) Stiti, N.; Ayadi, A.; Lerabi, Y.; Benhaoua, F.; Benzerga, R.; Legendre, L.
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    A comparative structural and magnetic study of Fe100-xPdx(x=15, 20 and 36) thin films deposited on Si (100) and glass substrates
    (Elsevier, 2015) Bahamida, Saida; Fnidiki, A.; Laggoun, A.; Guittoum, A.
    Various structural and magnetic characterization techniques have been used to investigate Fe100-xPdx (x=15, 20 and 36) thin films deposited onto silicon and glass substrates, by thermal evaporation technique. X-ray diffraction analysis shows the presence of supersaturated solid solution with bcc structure for Pd concentrations of 15% and 20%. However, for 36% of Pd, in addition to the supersaturated α-FePd (bcc) phase, another disordered FePd3 phase with fcc structure is present. At 20 at% Pd, the magnetic characterization shows a saturation of the bcc (α-FePd) phase and the appearance of the fcc phase. The correlation between the structure and magnetic properties allows us to compare the two substrates effects on deposited thin films. As results, the measurements indicate that the grain size D, the thin film thickness and the d(110) spacing significantly affect the magnetic coercivity HC. The Fe-Pd alloys deposited on a monocrystalline Si (100) and glass substrate show that the coercivity HC is given by the random anisotropy model. & 2015
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    Magnetic and electrical studies of fluorophosphates glasses
    (Chamber of Mining Engineers of Turkey, 2013) Djouama, T.; Taibi, Y.; Chalal, M.; Poulain, M.; Kaluzny, J.; Kubliha, M.; Labaša, V.
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    Microstructure and permeability of concrete with glass powder addition conserved in the sulphatic environment
    (Taylor and Francis, 2014) Chaid, R.; Kenaï, S.; Zeroub, H.; Jauberthie, R.
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    Elaboration and characterization of foam glass based waste Asian
    (2011) Ayadi, A.; Stiti, N.; Benhaoua, F.; Lerari, Y.; Benzerg, R.; Legendre, L.
    The porous glass ‘foam glass’ is considered as the new glass products fulfill certain requirements in the building industry in particular (thermal and acoustic insulation). The production of foam glass based waste glass plays an important role in environmental protection and also gains in energy. As part of present work, we seek to improve the properties of glass to obtain a building material lighter with excellent insulation properties. The properties of foam glass depend on the porosity and morphology. The present work devoted to analyze the microstructure of the glass produced by scanning electron microscopy and optical microscopy to be more precise on the size and shape of pores constitute this material