高压物理学报2026，Vol.40Issue(9)：105-115,11.DOI:10.11858/gywlxb.20261127
极端压缩下碳的相图与动态相变路径研究进展
Phase Diagram and Dynamic Transformation Pathways of Carbon under Extreme Compression
摘要
Abstract
Carbon exhibits complex structural transformations,melting behavior,and electronic-property evolution under extreme compression.This behavior is relevant to carbon-rich planetary interiors,the dynamic response of high-density carbon ablators in inertial confinement fusion,and the formation of post-diamond phases.This review focuses on the dynamic phase diagram of carbon.We summarize the equilibrium reference states of graphite,diamond,liquid carbon,and BC8 carbon,and discuss typical dynamic loading paths under shock,ramp,and multiple-shock compression together with their corresponding in situ diagnostics.We focus on the graphite-to-diamond/lonsdaleite-like transformation,diamond melting and liquid-carbon structure,and the kinetic accessibility of BC8 carbon.Existing studies show that the phases observed under dynamic compression are governed not only by pressure and temperature,but also by loading time,stress state,initial structure,and diagnostic window.Therefore,a dynamic phase diagram of carbon should extend the conventional pressure-temperature(p-T)description by incorporating loading path,leading to a p-T-path representation.This perspective may provide guidance for experimental design,in situ structural diagnostics,and equation-of-state model constraints for carbon under extreme conditions.关键词
碳/动态相变/冲击压缩/斜波压缩/金刚石熔化/BC8碳/液态碳Key words
carbon/dynamic phase transition/shock compression/ramp compression/diamond melting/BC8 carbon/liquid carbon分类
数理科学引用本文复制引用
孙亮,陈忠靖,席涛,杨珣,晏骥,杨家敏,赵宗清..极端压缩下碳的相图与动态相变路径研究进展[J].高压物理学报,2026,40(9):105-115,11.基金项目
国家自然科学基金(12534013,12302491) （12534013,12302491）
