资讯

IN a paper on the “foam structure” of metals, in The international Journal of Metallography (iii., i), Prof. Quincke gives a summary of the conclusions which he states as the result of ...
In the diagrams presented in the other three sections, the points show where atoms would lie if there were no motion due to heat; that is, if the metal's temperature were at absolute zero (-273°C).
The diagram shows a simple model of metallic structure. The metal ions are shown as tiny spheres, packed closely together in a regular pattern.
Metals have advantages over many other substances for they are hard but can be reshaped. Their crystalline structure allows them to be 'worked' to make them stronger. Mark Miodownik describes the ...
The metal ions form nodes that bind the arms of the linkers together to form a repeating, cage-like structure. Due to this hollow structure, MOFs have an extraordinarily large internal surface area.
Metal nanoparticles are nanoscale structures composed of metals such as gold, silver, platinum, and copper. These particles typically range in size from 1 to 100 nanometers and exhibit unique physical ...
Microstructural analysis of this forged iron structure revealed an extraordinary convergence of properties that resulted in ...