Abnormal relaxation kinetics in D-mannitol glass confined by nanoporous alumina
文献类型：期刊论文
| 作者 | Cao, YaRu; Song, LiJian; Li, Ao; Huo, JunTao; Li, FuShan; Xu, Wei; Wang, Jun-Qiang |
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2020 |
| 卷号 | 63期号:7 |
| 关键词 | TRANSITION DYNAMICS |
| DOI | 10.1007/s11433-020-1535-3 |
| 英文摘要 | The relaxation kinetics and phase transformations of the confined D-mannitol (DM) in nanoporous alumina are studied in-situ using a high-precision nano-calorimeter. We find that the crystallization behavior can be suppressed when it is confined in nanopores smaller than 50 nm. The confined DM glass has a much smaller fragility (similar to 76) than free DM glass (similar to 125), confirming the enhanced glass-forming ability. It is intriguing that during isothermal annealing both the confined and free DM glasses relaxation kinetics experience two relaxation stages that have distinct activation energies. The relaxation activation energy of the confined glass is about 25%-29% smaller than the free glass, which is attributed to the reduced dimensionality. The abnormal kinetics observed in the confined DM glass open a new avenue for preparing stable glasses. |
| 学科主题 | Physics |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/19783]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Wang, JQ (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, CAS Key Lab Magnet Mat & Devices, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo 315201, Peoples R China. 2.Xu, W 3.Wang, JQ (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Cao, YaRu,Song, LiJian,Li, Ao,et al. Abnormal relaxation kinetics in D-mannitol glass confined by nanoporous alumina[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2020,63(7). |
| APA | Cao, YaRu.,Song, LiJian.,Li, Ao.,Huo, JunTao.,Li, FuShan.,...&Wang, Jun-Qiang.(2020).Abnormal relaxation kinetics in D-mannitol glass confined by nanoporous alumina.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,63(7). |
| MLA | Cao, YaRu,et al."Abnormal relaxation kinetics in D-mannitol glass confined by nanoporous alumina".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 63.7(2020). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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