[PDF] Top 20 Factores predictivos de amputación en pacientes con pie diabético

... Bulk metallic glasses [1-5] and their composites [6-11] have recently re-emerged as new material bearing superior properties of strength [9, 12-16], hardness [17-21] and elastic strain limit [11, 22, ... See full document

... map crystallinity in materials [83, 84, 87, ...a bulk of material [97] and compare them with existing crystal structures in international crystallographic diffraction ...cast effect on resulting ... See full document

... no crystallinity is observed at tip and appreci- able amount of it starts appearing as point of observation in a field of view is moved away from tip towards the inside of wedge (Figure 10(a) and Figure ...enough ... See full document

... Bulk metallic glasses (BMGs) possess very high yield strength (>1:5 GPa) and high elastic strain limit ...of metallic glasses based on this concept. Introduction of crystal/glass compo- ... See full document

... metal matrix com- posites etc, revealing micromechanisms of nucleation, growth and coalescence of the microdamage ...metal matrix com- posite and found out that microcracks would nucleate at the interface ... See full document

... [4,5].Bulk metallic glasses typically have m values in the range of 32 ≤ m ≤ 70 and hence are classified in the intermediate category according to Angell’s ... See full document

... the glass transition, followed by a large supercooled liquid region and two exothermic reactions due to crystallization ...The glass transition temperature (T g ), the onset ... See full document

... addition, a few unknown crystalline phases are precipitated in the glassy matrix for the x ¼ 12 alloy (Fig. 1), indicating that the glass-forming ability (GFA) of the glassy matrix phase is also ... See full document

... In order to make use of self-sharpening effect of BMG and its composite, it is important to study the formation and evolution of the localized shear band. However, there are great arguments about the formation of ... See full document

... fiber, metallic fiber and non-metallic fiber bonded with any thermosetting ...the metallic fiber, glass fiber as the non-metallic fiber and the vinyl ester as the ...and glass ... See full document

... phase). Glass is present as light areas passivited from etching reagent whereas crystalline three dimensional dendritic network is revealed as a result of its enhanced reac- tivity and selective leaching towards ... See full document

... of metallic glass matrix specimen, the insoluble residue was separated from the solution by filtration through membrane filter with having the pore-size of ... See full document

... and roughness of these jagged patterns are in good agreement with the measured fracture toughness values. This jagged region will be termed as ‘plastic zone’ hereafter. As fracture progresses these plastic zones (jagged ... See full document

... However, careful observation reveals evidence of shear banding even on the less jagged surfaces of Figure 3-2(b)-(e). Figure 3-6 is a magnified image of the squared area marked in Figure 3-2(c). The fracture surface ... See full document

... height of the oscillations due to the enhanced thermal excita- tion in the melt. The similarity of the short-range order points to the existence of chemically well defined clusters already in the melt. These structural ... See full document

... to metallic glasses as well, since the neg- ative curvature of the interatomic potential tends to separate the nearest and second nearest neighbors clearly, as argued by Turnbull and Cohen in their discussion on ... See full document

... function of time and distance from the center of the crater is shown in Figure 4b.. Figure 3: Surface composition measured along the radius of the crater. Top plot shows settings from in[r] ... See full document

... the composite and the monolithic β ...an effect of ordering on alloy ductility is a commonly observed ...the effect of atomic bonding on the Peierls-Nabarro force encountered by moving ... See full document

... composite with a diameter of 3 mm was revealed by TEM analyses. The micro-level martensite CuZr phase is embed- ded in the glass matrix, as shown in Fig. 6. Its interface with the glass ... See full document

... compounds, bulk metallic glasses [1-3] and their composites [4-8] have attracted the attention of scientific community recently due to their high strength [9-14], hardness [15, 16] and large elastic strain ... See full document