Materials Literature
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In this study the use of a nm thick plasma polymerised primer layer as a means of enhancing the adhesion of silicone elastomer to stainless steel was investigated. This primer layer was formed from tetraethoxysilane (TEOS) and polyhydrogenmethyl siloxane (PHMS). This primer mixture was nebulized into helium atmospheri…
Interaction between the body and implanted materials is a very complex phenomenon, and understanding the concept of cell and tissue adhesion, which is the first event that occurs when a biomaterial is implanted, is of great importance. Currently, bioabsorbable materials are preferably used as biomaterials. They are on…
The corrosion inhibition of stainless steel in 0.9% NaCl solution in presence of poly(vinyl alcohol) (PVA) is discussed according to electrochemical measurements, such as potentiodynamic polarization and electrochemical impedance spectroscopy (EIS).The morphology of the surface was analyzed using Scanning Electron Mic…
In this investigation, four kinds of epoxy/silica nanocomposites with different sizes of nano-fillers were experimentally investigated on treeing breakdown lifetime. The nanocomposite specimens used included 3 wt% nano-fillers of 12, 40, 90 and 300 nm in size, and were prepared with and without silane-coupling agents…
The failure of the nanoscale metallic interface has raised concerns owing to the effect interfacial amalgamation has on its application in nanoelectronic devices. Single crystal copper [110] and [100], which are set as two components of [110]‖[100] nanocrystalline copper, are used to simulate the interfacial propertie…
Early orthodontic interventions are often initiated in the developing dentition to promote favorable developmental changes. Interceptive orthodontic can eliminate or reduce the severity of a developing malocclusion, the complexity of orthodontic treatment, overall treatment time and cost. Premature loss of deciduous t…
The polynucleating oxygen donor ligands, [(SbAr)(4)O(2)(PhPO(3)H)(4)(PhPO(3))(4)] 1 and [(SbAr)(2)O(HO(3)P(t)Bu)(6)] 2, based on condensation of p-chlorophenylstibonic acid (ArSbO(3)H(2)) and phosphonic acids, were used to prepare polymetallic cobalt(ii) complexes. Reaction of 1 with cobalt acetate under solvothermal…
A mixture of the ionic liquids 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (EMIBTI) and 1-ethyl-3-methylimidazolium hexafluorophosphate (EMIPF6) was formulated. The thermal properties of the binary mixture were determined by differential scanning calorimetry and cloud point measurement. No evidence…
Abstract Electrooptical properties of several new orthoconic antiferroelectric liquid crystal mixtures with partially fluorinated alkoxyalkoxy terminal chains have been investigated in order to select the best mixture for display applications. Electrooptical studies have been performed on these orthoconic materials ai…
(Bi0.5Na0.5)TiO3 (BNT) dense ceramic films with a thickness of approximately 25 µm were deposited by an aerosol deposition method, and thieir ferroelectric and leakage current properties were investigated. The BNT films annealed at 1100°C represented the leakage current density (J) of 10−6 A/cm2, while the BNT films a…
The mechanical behavior of extruded pure magnesium during low-cycle fatigue at room temperature was investigated using ultrasonic reflection methods with longitudinal and shear waves. The sound velocities and calculated mechanical properties, Young’s and shear moduli, decreased by a large percentage with an increased…
The ω-phase formation in titanium of the VT1-00 grade upon deformation under pressure has been investigated by X-ray diffraction analysis and diffraction electron microscopy. The deformation was effected by two methods: shear under a pressure of 6 GPa in Bridgman anvils and high-strain-rate equal-channel angular press…
Although detailed information about divalent europium-doped , , and phosphors and their binary mixtures and solid solutions is now well known, no attempt has been made to examine ternary . In this regard, we employed high throughput, solid-state synthesis and characterization techniques aimed at screening the entire c…
A Sr-substituted perovskite (LSM) and yttria-stabilized zirconia mixture was investigated by thermodynamic calculations to understand the factors affecting the stabilities of and , the two zirconates, at different conditions in solid oxide fuel cell. Two sets of independent experimental investigations were done: ( i )…
The loss behavior of 0.62Pb(Mg(13)Nb(23))O(3)-0.38PbTiO(3) (PMN-38%PT) ferroelectric single crystal poled along [001](c) was investigated. It was found that the complex electromechanical coefficients and loss factors change dramatically at the coercive field E(c) around 250 Vmm, representing the intrinsic switching ba…
In the paper, the numerical simulation of Nowacki's double shear test in the framework of recently proposed viscoplasticity theory for anisotropic solids is presented. The numerical analysis comprises the full spatial modelling and is carried out for the DH-36 steel sheet in adiabatic conditions (the analysis of aniso…
The phase transition and the vibrational properties of Ba8Ga16Ge30 have been investigated at high pressures up to 40 GPa at room temperature. The combined study of the high-pressure Raman and synchrotron powder x-ray diffraction (XRD) experiments revealed the occurrence of a first-order phase transition at 33 GPa, on…
O desenvolvimento de materiais compósitos utilizando fibras vegetais como reforço é crescente e vêm conquistando novos segmentos de mercado, pois as fibras vegetais apresentam baixo custo, biodegradabilidade, menor densidade e boas propriedades mecânicas, físicas e térmicas adequadas às aplicações industriais. Este tr…
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Influence of manganese, zirconium and iron on the corrosion of magnesium