mainly caused by thermal expansion during the heat transfer process between PV cells and the thermal absorber,” the group explained. “Due to the high temperatures, these expansions and ...

"Modern society demands materials that exhibit minimal dimensional changes with temperature fluctuations, unlike most materials that expand and contract significantly," explained Professor Martin ...

"Modern society demands materials that exhibit minimal dimensional changes with temperature fluctuations, unlike most materials that expand and contract significantly," explained Professor Martin Dove ...

"Modern society demands materials that exhibit minimal dimensional changes with temperature fluctuations, unlike most materials that expand and contract significantly," explained Professor Martin ...

Invar, for example, an alloy of iron and nickel, is known for its extremely low thermal expansion. How this property can be explained physically, however, was not entirely clear until now. Now, a ...

But some solid crystals, like scandium fluoride, shrink when heated — a phenomenon called negative thermal expansion. Now, by measuring distances between atoms in scandium fluoride crystals ...

Researchers in Germany have modeled dozens of indirect-expansion solar-assisted heat pump systems using photovoltaic-thermal ...

When it comes to liquids, thermal expansion helps explain how a thermometer works. Heated by warm temperatures, the expanding red liquid has nowhere to go except up the thermometer’s glass tube.