Elevated CO2 increased thousand grain weight (8%) and grain diameter (5%).
We use this to create a relatively rough aluminium surface (∼30 nm grain diameter) which induces a polarization dependence on the GSCP resonance in the presence of an anisotropic media, whereas it was shown in our previous work that a smooth surface (∼10 nm grain diameter) results in near polarization independence17.
This method is described in detail in Supplementary Note 1. Histograms of the two surfaces show a mean grain diameter of 12 nm for the 'A' surface (Fig. 2c) and 33 nm for the 'B' aluminium surface (Fig. 2d).
The microstructure consists of spheroidized cementite particles in an ultrafine ferrite matrix (average grain diameter ≈1.3 μm).
It includes particle rotations, curvatures, non-symmetric stresses, couple stresses and the mean grain diameter as a characteristic length.
Columnar grain diameter and surface roughness were much smaller and growth rate much higher in the mass transport regime.
The effects of average grain diameter, secondary phase volume fraction and nano-scale particle on the hardness of ceramic materials are investigated.
The secondary phase volume fraction, the nano-scale particle volume fraction, the grain centroid distribution, and the grain diameter distribution of the materials are simulated in this model.
Such a coating is obtained by following a route derived from sol gel and allowing an elementary grain diameter control in the 5 10 nm range.
Nearly fully dense bulk samples were obtained after SPS of cryomilled powders, with average grain diameter 110 nm.
For a particular base sand, static liquefaction potential was observed to increase with decreasing mean grain diameter ratio D50-sand/d50-silt D50-sand/d50-silt D50-sand/d50-silt
