It is known that the glass forming-ability (GFA) of bulk metallic glasses (BMGs) can be greatly enhanced via minor element additions. However, direct evidence has been lacking to reveal its structural origin despite different theories hitherto proposed. Through the high-resolution transmission-electron-microscopy (HRTEM) analysis, here we show that the content of local crystal-like orders incre...

We report the unusual glass-forming ability (GFA) of a family of Cu-based alloys, Cu46Zr47-xAl7Yx (0<x< or =10, in at. %), and investigate the origin of this unique property. By an injection mold casting method, these alloys can be readily solidified into amorphous structures with the smallest dimension ranging from 4 mm up to 1 cm without detectable crystallinity. Such superior GFA is found pr...

The fractional anisotropy (FA) value for Diffusion Tensor Imaging is widely used to determine the anisotropy of diffusion in a given voxel. As the FA value is based on the tensor’s eigenvectors it is not possible to calculate this quantity for HARDI diffusion profiles. In this paper we introduce an anisotropy index for HARDI data that utilizes the L-norm as the most natural notion of distance f...

Fe-based bulk metallic glasses (BMGs) with high boron content have potential application as a coating material used in the framework for storing spent nuclear fuels to support their safe long-term disposal. The glass forming ability (GFA) and large supercooled liquid region are therefore required such BMGs either glassy powder fabrication or subsequent spraying. In order meet these requirements...

The prediction of the glass-forming ability (GFA) metallic glasses (MGs) can accelerate efficiency their development. In this paper, a dataset was constructed using experimental data collected from literature and books, machine learning-based predictive model established to predict GFA. Firstly, classification based on size critical diameter (Dmax) determine whether an alloy system could form g...

Glass-forming ability GFA as defined by a critical cooling rate Rc to vitrify a liquid upon solidification is a complex function of many parameters. Some of the parameters, such as liquid-crystal interfacial energy, temperature-dependent liquid viscosity, and influence of heterogeneities, are crucial but their accurate experimental determination is challenging. Here, instead of relying on the e...

Uncertainty is inevitable in modelling of physical world, including sensor noise, control errors and inaccurate models of the environment. In robotic grasping force analysis (GFA), the uncertainties mainly come from the location of contact points and the coefficient of friction. Previous researches of uncertainty analysis are mainly focusing on of robotic grasp synthesis and planning, while lit...