Point Defects Enhance Cross-Plane Thermal Conductivity In Graphite.

• Tác giả: Xuezhen Du, Jiawang Hong, Zihan Huang, Puqing Jiang, Feiyu Kang, Jiachen Li, Yongheng Li, Huili Liu, Yu Qiu, Qi Ren, Ke Shen, Bo Sun, Junqiao Wu, Lin Xie, Xincheng Yao, Suyuan Yu, Lu Zhao
• Ngôn ngữ: eng
• Ký hiệu phân loại: 572.85 Nucleotides
• Thông tin xuất bản: Germany : Advanced materials (Deerfield Beach, Fla.) , 2025
• Bộ sưu tập: NCBI
• ID: 658394

Tóm tắt

Point defects typically reduce the thermal conductivity (κ) of a crystal due to increased scattering of heat-carrying phonons, a mechanism that is well understood and widely used to enhance or impede heat transfer in the material for different applications. Here an opposite effect is reported where the introduction of point defects in graphite with energetic particle irradiation increases its cross-plane κ by nearly a factor of two, from 10.8 to 18.9 W m K