Sentences with phrase «phonon collisions»

For example, if an engineer desires a material with certain thermal properties, the mean free path distribution could serve as a blueprint to design specific «scattering centers» within the material — locations that prompt phonon collisions, in turn scattering heat propagation, leading to reduced heat carrying ability.

«New tool measures distance between phonon collisions.»

Not exact matches

By varying the size of heat sources, Chen and his colleagues can map out how far phonons travel between collisions, and how much they contribute to heat conduction.

The difference in the neutron's energy before and after the collision is equal to the phonon energy.

So energy does indeed flow from hot objects to cold object AND from cold objects to warm objects (via those photons, phonons, collisions...).