Sentences with phrase «grain boundaries between»

Not exact matches

Here, a traditional view is that these high - angle general grain boundaries may not undergo interfacial reconstructions to form ordered superstructures because a lattice match between the two abutting grains is lacking.

Crystalline metals often have weaknesses at the boundaries between crystal grains.

The repeating spaces between the atoms are grain boundaries.

When a graphene lattice or sheet is formed, its polycrystalline structure has random boundaries between the single - crystal grains.

The boundary between the grains in these materials have always been assumed to be perpendicular to the surface.

This surprising result relied on our use of scanning tunnelling microscopy which allowed us to measure for the first time the three - dimensional structure of grain boundaries, including the precise angles between adjacent grains.»

For planar (flat) surface oxidation, the model predicts a critical concentration, where the oxide of the minor element dominates the oxide of the major element by neglecting mass transfer between the bulk alloy and grain boundary.

The analysis also revealed single - atom defects and the width of disordered boundaries between grains, which was not previously possible in complex 3 - D boundaries.

They also observed that the interfaces between grains, called grain boundaries, are more disordered.

The most significant results were related to: i) the effect of vicinal surfaces on the film growth; ii) the films specifically grown for microwave applications: a clear correlation was demonstrated between the surface resistance, the losses and the concentration of high - angle grain boundaries; iii) the effect of film - substrate interdiffusion and its control by epitaxial buffer layer.

Salleo's group led a multidisciplinary team of researchers in making a systematic study of a likely culprit of the inconsistent transistor performance in polycrystalline devices: the «grain» boundaries between crystals.