Successive Self-nucleation and Annealing (SSA) is a thermal fractionation technique that performed by Differential Scanning Calorimetry (DSC). The combination of non-isothermal isothermal steps applied during SSA achieves efficient molecular segregation polymer crystallization. Such magnifies the effect defects in chain crystallization, thereby providing information on structure. was created im...

Three of the largest granite porphyries northern Portugal were studied to improve current knowledge on regional felsic vein hypabyssal magmatism. All exhibit microcrystalline groundmasses variable granularity (composed quartz, K-feldspar, and muscovite), plagioclase, biotite, cordierite phenocrysts, antirapakivi rapakivi feldspars, embayments in enrichments rare metal incompatible elements. The...

The Co-Cr-Mo alloy is a biomaterial with very good corrosion resistance and wear resistance; thus, it widely applied for knee replacements. influenced by the amount of hcp phase morphology carbidic precipitates, which can both be altered heat treatment. This study compares conventional replacement manufactured investment casting material prepared progressive technology 3D printing. first set re...

Among the titanium alloys, Ti-6Al-4V is the most widely used. In the present work, the uniaxial hot compressive behavior of Ti-6Al-4V has been investigated under constant strain rates. A series of dilatometery experiments were carried out to determine the transformation temperatures at different cooling rates. Specimens were homogenized at 1050 °C for 10 minutes followed by fast cooling to dif...

Composites based on an L -rich poly(lactic acid), PLA, and different contents in mesoporous SBA-15 silica have been prepared by extrusion order to evaluate the influence of incorporation particles structural PLA features their ultimate mechanical performance. For that, samples isothermally cold crystallized for relatively long times at temperatures, ranging from 65 120 °C. The results DSC, X-ra...