[PDF] Top 20 Mat. Res. vol.11 número1

... In the previous Editorial we showed that the time for analysis and publication of articles in Mat. Res. varies from two up to twelve months. In the current Editorial we focus on the evolution of the number ... See full document

... thermo-mechanical cycles, the sample with GS = 75 µ m presented a large c/a ratio, large volume fraction of reversed martensite and consequently, a large total shape recovery 5,7.. Im[r] ... See full document

... Extended interfacial area per unit of volume between transformed and untransformed regions, S VE , plotted as a function of dimensionless time, τ , for V&R’s recrystallization of [r] ... See full document

... The analysis of the evolution of the volume fraction of partially transformed grains, V v g , as a function of time, has shown that the rate of nucleation of pioneer plates p[r] ... See full document

... took 11 minutes, resulted in the formation of proeu- tectoid ferrite (gray areas) and austenite, which transformed to large martensite laths (dark areas) on quenching from the intercritical temperature region (see ... See full document

... The characterization and chemical analysis of the synthesized biomimetic apatite powders were performed by scanning electron microscopy (SEM), powder X ray diffraction (XRD), Fourier-t[r] ... See full document

... The specimens rupture in fatigue starts in the polished tensile surface of the sample and occur in a brittle mode, being a function of the critical flaw size. This flaw must overcome the compression stresses generated by ... See full document

... Using TGA analysis the samples were evaluated by initial tem- perature of mass loss (Tonset) prior to and after immersion in distilled water. The differences in the Tonset of the materials (PCL about 390 °C and PLGA50 ... See full document

... the influence of newer polymerization sources on the properties of the different composites available. Therefore, the aim of this study was to assess in vitro the influence of differen[r] ... See full document

... According to statistics from the International Rubber Study Group, the world consumption of natural and synthetic rubber in 2005 was 20.7 million tonnes 5.. With technological progress[r] ... See full document

... The findings of our study showed that regardless the GICs tested the CS and DTS values increased with time (1 hours < 24 hours < 7 days) for both groups (SC and UE). Application of ultrasound has resulted in an ... See full document

... of the electrode made with the alloy containing about 20 at.% Pr in the MM were significantly improved. The electrode prepared from this alloy had a higher capacity, better discharge rate characteristics and longer cycle ... See full document

... The results of polarization curves showed the limitation of this technique as the unique tool to evaluate the effects of the deposition parameters studied (applied current density and [r] ... See full document

... Coarse grains in the hot-band and addition of Mn led to a Goss orientation component after final annealing, which resulted in an increase in the magnetic permeability.. Keywords: electr[r] ... See full document

... The critical observations of Figure 4a and 4b reveals that strain hardening can highly be imparted for the preform deformed under nil lubricating condition through continuous deformati[r] ... See full document

... According to the results presented, tensile strength, elongation at break, vicat softening point, melting tem- perature, crystallization temperature, tensile strength (MD) and ([r] ... See full document

... In this article, photothermal techniques were used in order to determine some thermal properties: diffusivity, conductivity, effusivity and specific heat capacity of WC-10 wt.. (%) Co s[r] ... See full document

... At high particle impact velocity, (Figure 3b), all steels revealed marked wastage at 100 °C and this decreased with increase in temperature up to 500 °C. The wastage of all the steels [r] ... See full document

... By using a sodium silicate solution, the second step of the method (precipitation and growth) is promoted by the immersion of the ceramic surface into the 1.5 SBF. This procedure is a[r] ... See full document

... In these conditions the temperature of the anomalies and the hysteretic behaviour of the ultrasonic phase velocity depend on the synergy between the direction and strength of [r] ... See full document