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Processing of ferroelectric thin layers of barium titanate by the sol-gel method
(Physics and Chemistry of Glasses, 2005)
The influence of various processing parameters is investigated during sol formation (metal precursors: titanium (IV) butoxide, barium hydroxide, barium acetate; pH of sol solution; type and amount of stabiliser and solvent; ...
Glass formation and crystallisation behaviour of nanostructured sodium niobate by direct glass crystallisation
(Physics and Chemistry of Glasses, 2005)
The subject of this work is the study of nanostructured sodium niobate obtained by a controlled crystallisation of glass. The glass samples of the composition within the system NaNbO3-SiO2-Al2O3 were prepared by melting ...
Chitosan application on wool before enzymatic treatment
(Wiley Periodicals, Inc., 2005)
The influence of a chitosan application on wool fabric before a treatment with a proteolytic enzyme has been investigated. The enzymatic treatment enhances whiteness and confers shrink resistance to wool, but an increase ...
Comparative analysis of laboratory accreditation in Bulgaria, Lithuania, Slovakia and Serbia and Montenegro
(Springer-Verlag, 2005)
The development of an internationally recognized laboratory accreditation process, accompanied by a mutual recognition agreement (MRA), is an issue of great interest in Central and Eastern European countries. This paper ...
Structural and crystallization characteristics of K 2 O· TiO 2 ·3GeO 2 glass / Strukturní a krystalizaèní charakteristiky k2o·tio2·3geo2 skel
(Institute of Chemical Technology, 2005)
Structure and crystallization of K 2 O·TiO 2 ·3GeO 2 glass have been investigated by means of Fourier transform infrared spectroscopy (FTIR), differential thermal analysis (DTA), differential scanning calorimetry (DSC), ...
Prediction for debonding damage process of glass beads-reinforced modified polyphenylene oxide under simple shear
(Elsevier Science Sa, Lausanne, 2005)
A three-dimensional finite element cell modeling technique has been applied to predict the particle-matrix debonding process of particulate polymer composite (PPC) subject to simple shear loading. The particle-matrix ...
Influence of the electrode parameters on pulse shape characteristic of gas-filled surge arresters at small pressure and inter-electrode gap values
(IEEE-Inst Electrical Electronics Engineers Inc, Piscataway, 2005)
The aim of this paper is to present the influence of electrode system parameters on electrical breakdown of gas (electrode effect) with the purpose to improve the gas-filled surge arresters (GFSAs) protective characteristics ...
Image analysis used to predict thermal stability of refractories
(American Ceramic Society Bulletin, 2005)
Analytical model of electric field in heterojunction region of HFET structure
(Natl Inst Optoelectronics, Bucharest-Magurele, 2005)
A new analytical model of electric field in heterojunction region of heterostructure field effect transistor (HFET), is presented. Electric field dependences on surface density of two-dimensional electron gas and surface ...
The study of corrosion stability of organic epoxy protective coatings on aluminium and modified aluminium surfaces
(Soc Brasileira Quimica, Sao Paulo, 2005)
Epoxy coatings were formed by cathodic electrodeposition of an epoxy resin on aluminium and modified aluminium surfaces (phosphatized, chromatized-phosphatized and anodized aluminium) using a constant voltage method (resin ...