What is Thermal Boundary Resistance?
Thermal boundary resistance (TBR), also known as Kapitza resistance, refers to the resistance to heat flow across the interface between two materials. This phenomenon becomes particularly significant at the
nanoscale, where the interface-to-volume ratio is much higher compared to bulk materials. The resistance arises due to differences in the vibrational properties of the atoms at the interface, leading to inefficient
phonon transport.
Factors Affecting Thermal Boundary Resistance
Several factors influence TBR, including:
Applications and Implications of Thermal Boundary Resistance
Managing TBR is crucial in several applications:
Future Directions in Research
Ongoing research aims to better understand and control TBR through:
