Ultrahigh thermal conductivity in isotope-enriched cubic boron nitride
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2020-01-10 |
| Journal | Science |
| Authors | Ke Chen, Bai Song, Navaneetha K. Ravichandran, Qiye Zheng, Xi Chen |
| Institutions | University of Illinois Urbana-Champaign, Boston College |
| Citations | 279 |
Abstract
Section titled āAbstractāA cool way to use isotopes Thermal management of electronics requires materials that can efficiently remove heat. Several promising materials have been found recently, but diamond remains the bulk material with the highest thermal conductivity. Chen et al. found that isotopically pure cubic boron nitride has an ultrahigh thermal conductivity, 75% that of diamond. Using only boron-11 or boron-10 allows the crystal vibrations that carry heat to move more efficiently through the material. This property could be exploited for better regulating the temperature of high-power devices. Science , this issue p. 555