Composite particles with submicron sizes can be produced by irradiating a suspension of nanoparticles with a laser beam. Violent physical and chemical processes take place during irradiation, many ...

Instead, the energy supplied during melting enables the particles to overcome the strong forces holding them together, allowing them to move from their fixed positions. Image caption, Points C to D ...

Arctic ice is disappearing at some of the fastest rates in centuries as global temperatures rise. Now, scientists suggest that melting glaciers may, in turn, be influencing the Arctic climate. As ...

How metallic alloys reorganize during microscale laser melting processes. ... they saw clear evidence of a phase explosion—a mixture of liquid and vaporized particles thrown out by the laser impact.

And as dark microplastic particles land in the Arctic, they too could be contributing to melting, the researchers said. The scientists cautioned, however, that the effects of these deposits on the ...

During July of this year, melting was observed even at the highest elevations in Greenland, with the melt extent reaching a record 97 percent of the ice sheet on a single day.