[PDF] Top 20 Mat. Res. vol.13 número3

... Thirteen years have passed since the first number of Mat. Res. was launched! The effort and strategy used to start from scratch to finally reach the present level has been an invaluable, rewarding ... See full document

... Temperatures below 200 °C allows one to avoid effects of wood destruction, once decomposition of wood usually takes place at 225-325 °C as verified by color changes, loosening of wood [r] ... See full document

... By summing up all these results, overall CPD is drawn to establish crack origin, crack propagation region and final failure region (Figure 6). However, at a few regions, the crack pro[r] ... See full document

... The plasticity measured from compression tests allows that the results obtained by the mathematical modeling may be applied to describe the behavior of a clay during shaping processes [r] ... See full document

... Solid electrolytes with perovskite structure, such as barium cerate (BaCeO 3 ) and barium zirconate (BaZrO 3 ) are applied in a variety of electrochemical devices. In all of them the e[r] ... See full document

... Linear polymerization shrinkage (LPS), flexural strength (FS) and modulus of elasticity (ME) of low-viscosity resin composites (Admira Flow™, Grandio Flow™/VOCO; Filtek Z350 Flow™/3M ES[r] ... See full document

... In order to determine the effect of the chemical composition of different types of wood sawdust on the thermal stability, the amounts of holocellulose (cellulose + hemicellulose), lign[r] ... See full document

... Therefore, an experimental solution of 2% Ricinus communis was prepared as denture cleanser and the purpose of this study was to evaluate the effect of this new solution on hardness[r] ... See full document

... present contribution is to investigate the influence of electrochemical cathodic charging and corrosion behavior of Al-Si-Cu alloy in hydrochloric acid solutions of concentration rangi[r] ... See full document

... Considering that some rehabilitation treatments require the use of temporary restorations for a longer period of time, the aim of this study was to assess the effect of storage in wate[r] ... See full document

... The kinetics precipitation in the ine grained material SD-A is clearly faster than in material SD-B at the initial stages, which means that the grain reinement promotes a shorter incu[r] ... See full document

... was processed to remove hard agglomerates prior to compaction. Briefly the powder was dispersed in ethanol (≈25 vol. (%) solids) and ball milled for 22 hours in a polyethylene jar using zirconia milling media. ... See full document

... The magnetization of substituted ferrite nano particles synthesized by coprecipitation depends mostly on parameters such as reaction temperature, pH of the suspension, initial molar co[r] ... See full document

... Figure 1 shows the XRD patterns of the as-synthesized magnesium oxide and MAS powders obtained by heat treatment of the precursors at 800 and 1200 °C for 2 hours, respectively.. Accord[r] ... See full document

... The reduction in the content of ashes is a very important aspect, both for coals injected in the BF and for the ones used in the power generation. The assembly of the coal mixtures is aimed to reduce the ash contents to ... See full document

... A varied particle size and flattened morphology increase compressibility, while a small particle size causes decreased compressibility for the composite studied, and increased milling [r] ... See full document

... Given that the measured permeability depends inversely on the viscosity of the fluid used to perform the measurement 14 , it is expected that the permeability to air (viscosity of 0.01[r] ... See full document

... extremely simple and yields excellent comparative results. The tests were performed on an MTS 810 universal testing machine (load capacity of 100 kN) with a resistance furnace attached to the machine shaft (maximum ... See full document

... It can be observed by the microstructure of ceramic samples with 20% of residue and by changing firing temperature of 1100 °C, 1170 °C, 1200 °C and 1250 °C, that the residue particles[r] ... See full document

... These precipitates make martensitic transformation more easier (increase of M s in Figure 3) because they act as preferential sites for nucleation of reaction, inhibiting and/or suppressing the appearance of the R-phase. ... See full document