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Discontinuous phase diagram of amorphous carbons

文献类型：期刊论文

作者Zhu, Yinbo2; Fang, Zhouyu2; Zhang, Zhongting2; Wu, Hengan1,2
刊名NATIONAL SCIENCE REVIEW
出版日期2024-02-13
卷号11期号:4页码:8
关键词amorphous carbons disordered carbons phase diagram microstructural topology phase transition
ISSN号2095-5138
DOI10.1093/nsr/nwae051
通讯作者Wu, Hengan(wuha@ustc.edu.cn)
英文摘要The short-range order and medium-range order of amorphous carbons demonstrated in experiments allow us to rethink whether there exist intrinsic properties hidden by atomic disordering. Here we presented six representative phases of amorphous carbons (0.1-3.4 g/cm3), namely, disordered graphene network (DGN), high-density amorphous carbon (HDAC), amorphous diaphite (a-DG), amorphous diamond (a-D), paracrystalline diamond (p-D), and nano-polycrystalline diamond (NPD), respectively, classified by their topological features and microstructural characterizations that are comparable with experiments. To achieve a comprehensive physical landscape for amorphous carbons, a phase diagram was plotted in the sp3/sp2 versus density plane, in which the counterintuitive discontinuity originates from the inherent difference in topological microstructures, further guiding us to discover a variety of phase transitions among different amorphous carbons. Intriguingly, the power law, log(sp3/sp2) proportional to rho n, hints at intrinsic topology and hidden order in amorphous carbons, providing an insightful perspective to reacquaint atomic disorder in non-crystalline carbons. A phase diagram for amorphous carbons was plotted in the sp3/sp2 versus density plane, where counterintuitive discontinuity originates from inherent differences in topological microstructures, further guiding us to discover various phase transitions.
WOS关键词DIAMOND
资助项目Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Supercomputing Center of University of Science and Technology of China ; Hefei Advanced Computing Center
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:001209402100008
资助机构Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Supercomputing Center of University of Science and Technology of China ; Hefei Advanced Computing Center
源URL[http://dspace.imech.ac.cn/handle/311007/95016]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Wu, Hengan
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
2.Univ Sci & Technol China, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230027, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Yinbo,Fang, Zhouyu,Zhang, Zhongting,et al. Discontinuous phase diagram of amorphous carbons[J]. NATIONAL SCIENCE REVIEW,2024,11(4):8.
APA Zhu, Yinbo,Fang, Zhouyu,Zhang, Zhongting,&Wu, Hengan.(2024).Discontinuous phase diagram of amorphous carbons.NATIONAL SCIENCE REVIEW,11(4),8.
MLA Zhu, Yinbo,et al."Discontinuous phase diagram of amorphous carbons".NATIONAL SCIENCE REVIEW 11.4(2024):8.

入库方式： OAI收割

来源：力学研究所

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