Computer simulations shed light on how material can shrink when heated
New theory offers insights into the origin of the very low and negative thermal expansion observed in cordierite
The origin of the peculiar thermal expansion of a mineral called cordierite has been revealed using lattice dynamics and molecular dynamics simulations.1 Although this ceramic is used in several high-temperature applications like catalytic converters for vehicles, the mechanism behind its tiny thermal expansion has remained unclear. Now, a team working with Martin Dove from Sichuan University in China has unlocked the mystery.