[PDF] Top 20 Mat. Res. vol.18 número2

... In an effort to improve the PHB properties, processability and, in addition, to understand its crystallization behavior, blends of PHB with small amounts of PS were produced by[r] ... See full document

... Aluminium (Al) samples were nitrided in 13.56 MHz radiofrequency (RF) discharge of 70:30 vol.% Ar:N 2 mixture at substrate temperature of 400 °C and RF power of 300 W for different ill pressures and treatment ... See full document

... This allows predicting the chloride migration coeficient and total charge passed solely based on their strength class, consequently facilitating the design of concrete structures expo[r] ... See full document

... The average corrosion rates obtained in the loss weight tests of both materials (BM and WJ) in different H 2 S-containing solutions are recorded in Table 3 and Figure 4. The corrosion[r] ... See full document

... The schematic diagram of electrospinning equipment was illustrated in Figure 1. The electrospinning apparatus consisted of a high voltage power supply, a spinneret (syringe), and a collector plate (a grounded conductor). ... See full document

... Pt catalysts prepared using the structured supports with two spinels layers showed a good performance in the reaction of n-butane dehydrogenation, specially the Pt/MgAl 2 O 4 /α-Al 2 [r] ... See full document

... Bioactivity was observed by deposition of Ca-P (presumably calcium phosphate) on the surface of samples immersed in Simulated Body Fluid; biocompatibility was veriied by adhesion with [r] ... See full document

... the value of 1.1 eV. Comparing the activation energy values reported on literature with those calculated for the austenitic phase of the duplex stainless steel in this study, the difference was only 0.18 eV. This ... See full document

... Only for the CA 2 samples, the pH attained favored the calcium phosphate phase precipitation and a surface layer of the stoichiometric hydroxyapatite could be detected by XRD.. Based[r] ... See full document

... The aim of this study was to evaluate the effect of different peak wavelengths (450nm, 468nm and 490nm) of experimental LEDs on hardness, elastic modulus, degree of conversion and tempe[r] ... See full document

... In addition, free radical scavenging action of PbS-NP, optical, mechanical and thermal properties of PMMA/PbS-NP ilms were also discussed.. Our indings suggest that PbS-NP is suitabl[r] ... See full document

... Mechanical properties of the rolled sheets Figure 6 shows the effect of the rolling reduction amount on the Vickers Hardness HV for ZK60 alloy sheets produced by TRC and sequent[r] ... See full document

... Keywords: bituminous mixture, viscoelastic behaviour, thermo-mechanical properties, gap-graded mixture, complex modulus test, viscoelastic constitutive model, linear viscoelasticity...[r] ... See full document

... Figure 5 presents X-Ray diffraction patterns of the titanium dioxide films deposited on glass substrates, highlighting the phases present on ilm surfaces, using a double [r] ... See full document

... Comparative conversion of oleic acid obtained from reactions in 30 °C, 45 °C and 60 °C using natural montmorillonite clay and treated montmorillonite clay with sulfuric acid at differe[r] ... See full document

... As shown in Figure 4b, for a temperature of 410 °C, increasing the nitriding time led to an increase in the hardness to 550-570 HV range. The nitriding depths increased with the nitriding time and reached values of ... See full document

... • The retained-E showed no change comparing small and large specimens when considering the thermal shock damage resistance of the castables containing eutectic aggregates, with maxim[r] ... See full document

... When NaOH solution is applied during testing, the effects of stress cracking appear as crazes and cracks at the sample surface as a result of the physical and/or chemical attack 8,31,[r] ... See full document

... When considering the value of Tan delta 1 (loss factor of the EPR dispersed phase) as the dependent variable, the composites containing silica obtained statistical signiicance.. Figure[r] ... See full document

... Figure 19 shows the average tensile strength for different section diameters (0.4mm, 0.7mm and 1.0mm) and different mold temperatures (300 °C, 350 °C and 400 °C) and reveals the 0.7 m[r] ... See full document